MCP33131/21/11-XX
1 Msps/500 kSPS 16/14/12-Bit Single-Ended Input SAR ADC
Features
Typical Applications
• Sample Rate (Throughput):
- MCP33131/21/11-10: 1 Msps
- MCP33131/21/11-05: 500 kSPS
• 16/14/12-Bit Resolution with No Missing Codes
• No Latency Output
• Wide Operating Voltage Range:
- Analog Supply Voltage (AVDD): 1.8V
- Digital Input/Output Interface Voltage (DVIO):
1.7V - 5.5V
- External Reference (VREF): 2.5V - 5.1V
• Pseudo-Differential Input Operation with
Single-Ended Configuration:
- Input Full-Scale Range: 0V to +VREF
• Ultra Low Current Consumption (typical):
- During Input Acquisition (Standby): ~ 0.8 µA
- During Conversion:
•
•
•
•
•
•
•
High-Precision Data Acquisition
Medical Instruments
Test Equipment
Electric Vehicle Battery Management Systems
Motor Control Applications
Switch-Mode Power Supply Applications
Battery-Powered Equipment
System Design Supports
The MCP331x1-XX Evaluation Kit demonstrates the
performance of the MCP331x1-XX SAR ADC family
devices. The evaluation kit includes: (a) MCP331x1-XX
Evaluation Board, (b) PIC32MZ EF Curiosity Board for
data collection, and (c) SAR ADC Utility PC GUI.
Contact Microchip Technology Inc. for the evaluation
tools and the PIC32 MCU firmware example codes.
MCP331x1-10: ~1.6 mA
Package Types
MCP331x1-05: ~1.4 mA
VREF 1
• SPI-Compatible Serial Communication:
- SCLK Clock Rate: up to 100 MHz
• ADC Self-Calibration for Offset, Gain, and
Linearity Errors:
- During Power-Up (automatic)
- On-Demand via user’s command during
normal operation
• AEC-Q100 Qualified:
- Temperature Grade 1: -40°C to +125°C
• Package Options: MSOP-10 and TDFN-10
MSOP-10
AVDD 2
TDFN-10
10 DVIO
Top View
9 SDI
AIN+ 3
AIN- 4
GND 5
8 SCLK
7 SDO
6 CNVST
VREF 1
10 DVIO
AVDD 2
Top View
9 SDI
AIN+ 3
8 SCLK
AIN- 4
7 SDO
6 CNVST
GND 5
MCP331x1-XX Device Offering (Note 1):
Part Number
Resolution
Sample
Rate
MCP33131-10
16-bit
1 Msps
Single-Ended
MCP33121-10
14-bit
1 Msps
Single-Ended
Input Type
Input Range
Performance (Typical)
SNR
(dBFS)
SFDR
(dB)
THD
(dB)
INL
(LSB)
DNL
(LSB)
0V to 5.1V
86.7
98.9
-97.4
±2.2
±0.9
0V to 5.1V
83.5
98.8
-97.2
±0.55
±0.25
±0.06
MCP33111-10
12-bit
1 Msps
Single-Ended
0V to 5.1V
73.8
95.9
-93.7
±0.12
MCP33131-05
16-bit
500 kSPS
Single-Ended
0V to 5.1V
86.7
98.9
-97.4
±2.2
±0.9
MCP33121-05
14-bit
500 kSPS
Single-Ended
0V to 5.1V
83.5
98.8
-97.2
±0.55
±0.25
MCP33111-05
12-bit
500 kSPS
Single-Ended
0V to 5.1V
73.8
95.9
-93.7
±0.12
±0.06
Note
1:
SNR, SFDR, and THD are measured with fIN = 10 kHz, VIN = -1 dBFS, VREF = 5.1V.
2018 Microchip Technology Inc.
DS20006122A-page 1
MCP33131/21/11-XX
Application Diagram
2.5V to 5.1V 1.8V 1.7V to 5.5V
VREF AVDD DVIO
22Ω
Analog Input
1.7 nF
(0V to VREF)
Ground Reference of
Analog Input
Description
MCP33131/MCP33121/MCP33111-10
MCP33131/MCP33121/MCP33111-05
The
and
are
single-ended 16, 14, and 12-bit, single-channel 1 Msps
and 500 kSPS ADC family devices, respectively,
featuring low power consumption and high
performance, using a successive approximation
register (SAR) architecture.
The device operates with a 2.5V to 5.1V external
reference (VREF), which supports a wide range of input
full-scale range from 0V to VREF. The reference voltage
setting is independent of the analog supply voltage
(AVDD) and is higher than AVDD. The conversion output
is available through an easy-to-use simple SPIcompatible 3-wire interface.
The device requires a 1.8V analog supply voltage
(AVDD) and a 1.7V to 5.5V digital I/O interface supply
voltage (DVIO). The wide digital I/O interface supply
(DVIO) range (1.7V - 5.5V) allows the device to
interface with most host devices (Master) available in
the current industry such as the PIC32
microcontrollers, without using external voltage level
shifters.
AIN+
MCP331x1-XX
AINGND
SDI
CNVST
SCLK
Host Device
(PIC32MZ)
SDO
During Standby, most of the internal analog circuitry is
shutdown in order to reduce current consumption.
Typically, the device consumes less than 1 µA during
Standby. A new conversion is started on the rising edge
of CNVST. When the conversion is complete and the
host lowers CNVST, the output data is presented on
SDO, and the device enters Standby to begin acquiring
the next input sample. The user can clock out the ADC
output data using the SPI-compatible serial clock
during Standby.
The ADC system clock is generated by an internal
on-chip clock, therefore the conversion is performed
independent of the SPI serial clock (SCLK).
This device can be used for various high-speed and
high-accuracy analog-to-digital data conversion
applications, where design simplicity, low power, and
no output latency are needed.
The device is AEC-Q100 qualified for automotive
applications and operates over the extended
temperature range of -40°C to +125°C. The available
package options are Pb-free TDFN-10 and MSOP-10.
When the device is first powered-up, it performs a
self-calibration to minimize offset, gain and linearity
errors. The device performance stays stable across the
specified temperature range. However, when extreme
changes in the operating environment, such as in the
reference voltage, are made with respect to the initial
conditions (e.g. the reference voltage was not fully
settled during the initial power-up sequence), the user
may send a recalibrate command anytime to initiate
another
self-calibration
to
restore
optimum
performance.
When the initial power-up sequence is completed, the
device enters a low-current input acquisition mode,
where sampling capacitors are connected to the input
pins. This mode is called Standby.
DS20006122A-page 2
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
1.0
KEY ELECTRICAL
CHARACTERISTICS
1.1
Absolute Maximum Ratings†
†Notice: Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification is not
implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
External Analog Supply Voltage (AVDD) ................... -0.3V to 2.0V
External Digital Supply Voltage (DVIO) ..................... -0.3V to 5.8V
External Reference Voltage (VREF) .......................... -0.3V to 5.8V
Analog Inputs w.r.t GND .................... .......... –0.3V to VREF+0.3V
Current at Input Pins ...........................................................±2 mA
Current at Output and Supply Pins .................................±250 mA
Storage Temperature ...........................................-65°C to +150°C
Maximum Junction Temperature (TJ) ....... .........................+150°C
ESD protection on all pins .... ≤2kV HBM, ≤2kV CDM, ≤200V MM
1.2
Electrical Specifications
TABLE 1-1:
KEY ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V,
GND = 0V, Analog Input (VIN) = -1 dBFS sine wave, fIN = 10 kHz, CLOAD_SDO = 20 pF.
• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Analog Supply Voltage Range
AVDD
1.7
1.8
1.9
V
(Note 3)
Digital Input/Output Interface Voltage
Range
DVIO
1.7
—
5.5
V
(Note 3)
IDDAN
—
—
—
1.6
1.4
0.8
2.4
2.0
—
mA
mA
µA
fs = 1 Msps (MCP331x1-10)
fs = 500 kSPS (MCP331x1-05)
During input acquisition (tACQ)
—
—
—
290
200
30
—
—
—
A
A
nA
fs = 1 Msps (MCP331x1-10)
fs = 500 kSPS (MCP331x1-05)
During input acquisition (tACQ)
5.1
5.1
V
-40°C ≤ TA ≤ 85°C
85°C < TA ≤ 125°C
450
220
240
600
360
—
µA
µA
nA
fs = 1 Msps (MCP331x1-10)
fs = 500 kSPS (MCP331x1-05)
During input acquisition (tACQ)
—
—
—
—
6.2
3.1
0.6
2.6
—
—
—
—
mW
mW
mW
W
Averaged power for tACQ + tCNV
—
—
—
4.2
0.8
2.6
—
—
—
mW
mW
W
Power Supply Requirements
Analog Supply Current at AVDD pin:
During Conversion
During Standby
Digital Supply Current At DVDD pin:
During Output Data Reading
During Standby
IDDAN_STBY
IIO_DATA
IIO_STBY
External Reference Voltage Input
Reference Voltage
(Note 2), (Note 3)
Reference Load Current at VREF pin:
During Conversion
During Standby
VREF
2.5
2.7
IREF
—
—
IREF_STBY
Total Power Consumption (Including AVDD, DVIO, VREF pins)
MCP331x1-10
at 1 Msps
at 500 ksps
at 100 ksps
During Standby
PDISS_TOTAL
PDISS_STBY
During input acquisition (tACQ)
MCP331x1-05
at 500 ksps
at 100 ksps
During Standby
Note
PDISS_TOTAL
PDISS_STBY
Averaged power for tACQ + tCNV
During input acquisition (tACQ)
1: This parameter is ensured by design and not 100% tested.
2: This parameter is ensured by characterization and not 100% tested.
3: Decoupling capacitor is recommended on the following pins:
(a) AVDD pin: 1 F ceramic capacitor, (b) DVIO pin: 0.1 F ceramic capacitor, (c) VREF pin: 10 F tantalum capacitor.
4: PSRR (dB) = -20 log (DVOUT/AVDD), where DVOUT = change in conversion result.
5: ENOB = (SINAD - 1.76)/6.02
2018 Microchip Technology Inc.
DS20006122A-page 3
MCP33131/MCP33121/MCP33111-XX
TABLE 1-1:
KEY ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V,
GND = 0V, Analog Input (VIN) = -1 dBFS sine wave, fIN = 10 kHz, CLOAD_SDO = 20 pF.
• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
Parameters
Sym.
Min.
Typ.
Max.
Input Voltage Range
VIN+
Input Full-Scale Voltage Range
FSR
Units
Conditions
-0.1
—
VREF+0.1
V
(Note 2)
0
—
+VREF
VPP
(Note 2)
CS
—
31
—
pF
(Note 1)
BW-3dB
—
25
—
MHz
(Note 1)
—
2.5
—
ns
Time delay between CNVST rising
edge and when input is sampled
ILEAK_AN_INPUT
—
±2
±200
nA
During input acquisition (tACQ)
fs
—
—
1
Msps
—
—
500
kSPS
16
—
—
Bits
MCP33131-10 and MCP33131-05
14
—
—
Bits
MCP33121-10 and MCP33121-05
12
—
—
Bits
MCP33111-10 and MCP33111-05
-6
±2.2
+6
LSB
MCP33131-10 and MCP33131-05
-1.5
±0.55
+1.5
LSB
MCP33121-10 and MCP33121-05
LSB
MCP33111-10 and MCP33111-05
Analog Inputs
Input Sampling Capacitance
-3dB Input Bandwidth
Aperture Delay
(Note 1)
Leakage Current at Analog Input Pin
System Performance
Sample Rate
(Throughput rate)
Resolution
(No Missing Codes)
Integral Nonlinearity
INL
±0.12
Differential Nonlinearity
DNL
Gain Error
GER
Gain Error Drift with temperature
±0.9
+1.8
LSB
MCP33131-10 and MCP33131-05
-0.8
±0.25
+0.8
LSB
MCP33121-10 and MCP33121-05
-0.3
±0.06
+0.3
LSB
MCP33111-10 and MCP33111-05
±0.1
±2.3
mV
MCP33131-10 and MCP33131-05
—
±0.125
±3
mV
MCP33121-10 and MCP33121-05
—
±0.8
±3.66
mV
MCP33111-10 and MCP33111-05
—
±0.8
—
V/oC
—
±4
—
LSB
—
±1
—
LSB
MCP33121-10 and MCP33121-05
—
±0.2
—
LSB
MCP33111-10 and MCP33111-05
—
±0.35
—
V/oC
Input Common-Mode
Rejection Ratio
CMRR
—
84
—
dB
Power Supply Rejection Ratio
PSRR
—
60
—
dB
Note
MCP331x1-05
-0.98
Offset Error
Offset Error Drift with Temperature
MCP331x1-10
MCP33131-10 and MCP33131-05
(Note 4)
1: This parameter is ensured by design and not 100% tested.
2: This parameter is ensured by characterization and not 100% tested.
3: Decoupling capacitor is recommended on the following pins:
(a) AVDD pin: 1 F ceramic capacitor, (b) DVIO pin: 0.1 F ceramic capacitor, (c) VREF pin: 10 F tantalum capacitor.
4: PSRR (dB) = -20 log (DVOUT/AVDD), where DVOUT = change in conversion result.
5: ENOB = (SINAD - 1.76)/6.02
DS20006122A-page 4
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
TABLE 1-1:
KEY ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V,
GND = 0V, Analog Input (VIN) = -1 dBFS sine wave, fIN = 10 kHz, CLOAD_SDO = 20 pF.
• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
—
86.8
—
—
80.9
—
VREF = 2.5V, fIN = 1 kHz
83.5
86.7
—
VREF = 5V, fIN = 10 kHz
—
80.9
—
VREF = 2.5V, fIN = 10 kHz
Dynamic Performance
Signal-to-Noise Ratio
SNR
MCP33131-10 and MCP33131-05: 16-bit ADC
dBFS
VREF = 5V, fIN = 1 kHz
MCP33121-10 and MCP33121-05: 14-bit ADC
—
83.6
—
—
79.8
—
dBFS
VREF = 2.5V, fIN = 1 kHz
VREF = 5V, fIN = 1 kHz
81.5
83.5
—
VREF = 5V, fIN = 10 kHz
—
79.8
—
VREF = 2.5V, fIN = 10 kHz
MCP33111-10 and MCP33111-05: 12-bit ADC
Signal-to-Noise and Distortion Ratio
(Note 5)
—
73.8
—
—
73.2
—
VREF = 2.5V, fIN = 1 kHz
71.1
73.8
—
VREF = 5V, fIN = 10 kHz
—
73.2
—
VREF = 2.5V, fIN = 10 kHz
SINAD
dBFS
VREF = 5V, fIN = 1 kHz
MCP33131-10 and MCP33131-05: 16-bit ADC
—
86.9
—
—
80.9
—
dBFS
VREF = 2.5V, fIN = 1 kHz
VREF = 5V, fIN = 1 kHz
—
86.6
—
VREF = 5V, fIN = 10 kHz
—
80
—
VREF = 2.5V, fIN = 10 kHz
MCP33121-10 and MCP33121-05: 14-bit ADC
—
83.6
—
—
79.8
—
dBFS
VREF = 2.5V, fIN = 1 kHz
VREF = 5V, fIN = 1 kHz
—
83.4
—
VREF = 5V, fIN = 10 kHz
—
79.1
—
VREF = 2.5V, fIN = 10 kHz
MCP33111-10 and MCP33111-05: 12-bit ADC
Note
—
73.8
—
—
73.2
—
dBFS
VREF = 2.5V, fIN = 1 kHz
VREF = 5V, fIN = 1 kHz
—
73.8
—
VREF = 5V, fIN = 10 kHz
—
73
—
VREF = 2.5V, fIN = 10 kHz
1: This parameter is ensured by design and not 100% tested.
2: This parameter is ensured by characterization and not 100% tested.
3: Decoupling capacitor is recommended on the following pins:
(a) AVDD pin: 1 F ceramic capacitor, (b) DVIO pin: 0.1 F ceramic capacitor, (c) VREF pin: 10 F tantalum capacitor.
4: PSRR (dB) = -20 log (DVOUT/AVDD), where DVOUT = change in conversion result.
5: ENOB = (SINAD - 1.76)/6.02
2018 Microchip Technology Inc.
DS20006122A-page 5
MCP33131/MCP33121/MCP33111-XX
TABLE 1-1:
KEY ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V,
GND = 0V, Analog Input (VIN) = -1 dBFS sine wave, fIN = 10 kHz, CLOAD_SDO = 20 pF.
• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
Parameters
Sym.
Spurious Free Dynamic Range
SFDR
Min.
Typ.
Max.
Units
Conditions
MCP33131-10 and MCP33131-05: 16-bit ADC
—
99.4
—
—
94.4
—
dBc
VREF = 5V, fIN = 1 kHz
VREF = 2.5V, fIN = 1 kHz
—
98.9
—
VREF = 5V, fIN = 10 kHz
—
93.9
—
VREF = 2.5V, fIN = 10 kHz
MCP33121-10 and MCP33121-05: 14-bit ADC
—
99.3
—
—
94.4
—
dBc
VREF = 5V, fIN = 1 kHz
VREF = 2.5V, fIN = 1 kHz
—
98.8
—
VREF = 5V, fIN = 10 kHz
—
93.9
—
VREF = 2.5V, fIN = 10 kHz
MCP33111-10 and MCP33111-05: 12-bit ADC
Total Harmonic Distortion
(first five harmonics)
—
97.4
—
—
94.2
—
VREF = 2.5V, fIN = 1 kHz
—
95.9
—
VREF = 5V, fIN = 10 kHz
—
93.7
—
VREF = 2.5V, fIN = 10 kHz
THD
dBc
VREF = 5V, fIN = 1 kHz
MCP33131-10 and MCP33131-05: 16-bit ADC
—
-97.6
—
—
-92.5
—
dBc
VREF = 2.5V, fIN = 1 kHz
VREF = 5V, fIN = 1 kHz
—
-97.4
—
VREF = 5V, fIN = 10 kHz
—
-92.4
—
VREF = 2.5V, fIN = 10 kHz
MCP33121-10 and MCP33121-05: 14-bit ADC
—
-97.4
—
—
-92.4
—
dBc
VREF = 2.5V, fIN = 1 kHz
VREF = 5V, fIN = 1 kHz
—
-97.2
—
VREF = 5V, fIN = 10 kHz
—
-92.3
—
VREF = 2.5V, fIN = 10 kHz
MCP33111-10 and MCP33111-05: 12-bit ADC
Note
—
-94.4
—
—
-91.7
—
dBc
VREF = 5V, fIN = 1 kHz
VREF = 2.5V, fIN = 1 kHz
—
-93.7
—
VREF = 5V, fIN = 10 kHz
—
-91.5
—
VREF = 2.5V, fIN = 10 kHz
1: This parameter is ensured by design and not 100% tested.
2: This parameter is ensured by characterization and not 100% tested.
3: Decoupling capacitor is recommended on the following pins:
(a) AVDD pin: 1 F ceramic capacitor, (b) DVIO pin: 0.1 F ceramic capacitor, (c) VREF pin: 10 F tantalum capacitor.
4: PSRR (dB) = -20 log (DVOUT/AVDD), where DVOUT = change in conversion result.
5: ENOB = (SINAD - 1.76)/6.02
DS20006122A-page 6
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
TABLE 1-1:
KEY ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V,
GND = 0V, Analog Input (VIN) = -1 dBFS sine wave, fIN = 10 kHz, CLOAD_SDO = 20 pF.
• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
Parameters
Sym.
Min.
Typ.
Max.
tCAL
ReCalNSCLK
Units
Conditions
—
500
650
ms
—
1024
—
clocks
0.7 * DVIO
—
DVIO + 0.3
V
DVIO ≥ 2.3V
0.9 * DVIO
—
DVIO + 0.3
V
DVIO < 2.3V
-0.3
—
0.3 * DVIO
V
DVIO ≥ 2.3V
-0.3
—
0.2 * DVIO
V
DVIO < 2.3V
—
0.2 * DVIO
—
V
All digital inputs
IOL = 500 µA (sink)
System Self-Calibration
Self-Calibration Time
Number of SCLK Clocks for
Recalibrate Command
(Note 2)
Includes clocks for data bits
Serial Interface Timing Information: See Table 1-2
Digital Inputs/Outputs
High-level Input voltage
Low-level input voltage
Hysteresis of Schmitt Trigger Inputs
VIH
VIL
VHYST
Low-level output voltage
VOL
—
—
0.2 * DVIO
V
High-level output voltage
VOH
0.8 * DVIO
—
—
V
IOL = - 500 µA (source)
Input leakage current
ILI
—
—
±1
µA
CNVST/SDI/SCLK = GND or DVIO
Output leakage current
ILO
—
—
±1
µA
Output is high-Z, SDO = GND or
DVIO
CINT
—
7
—
pF
TA = 25°C (Note 1)
Internal capacitance
(all digital inputs and outputs)
Note
1: This parameter is ensured by design and not 100% tested.
2: This parameter is ensured by characterization and not 100% tested.
3: Decoupling capacitor is recommended on the following pins:
(a) AVDD pin: 1 F ceramic capacitor, (b) DVIO pin: 0.1 F ceramic capacitor, (c) VREF pin: 10 F tantalum capacitor.
4: PSRR (dB) = -20 log (DVOUT/AVDD), where DVOUT = change in conversion result.
5: ENOB = (SINAD - 1.76)/6.02
2018 Microchip Technology Inc.
DS20006122A-page 7
MCP33131/MCP33121/MCP33111-XX
TABLE 1-2:
SERIAL INTERFACE TIMING SPECIFICATIONS
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +125°C, AVDD = 1.8V, DVIO = 3.3V, GND = 0V,
Analog Input (AIN) = -1 dBFS sine wave, Resolution = 16-bit (MCP33131-10), fIN = 10 kHz, CLOAD_SDO = 20 pF, +25°C is applied for typical value. All
timings are measured at 50%. See Figure 1-1 for timing diagram.
• MCP331x1-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
• MCP331x1-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
Parameters
Symbol
Min.
Typ.
Max.
Units
Serial Clock frequency
fSCLK
—
—
100
MHz
SCLK Period
tSCLK
10
—
—
ns
SCLK Low Time
tSCLK_L
SCLK High Time
tSCLK_H
Output Valid from SCLK Low
tDO
Quiet time
tQUIET
Conditions
See tSCLK specification
DVIO ≥ 3.3V, fSCLK = 100 MHz (Max)
12
—
—
ns
DVIO ≥ 2.3V, fSCLK = 83.3 MHz (Max)
16
—
—
ns
DVIO ≥ 1.7V, fSCLK = 62.5 MHz (Max)
3
—
—
ns
DVIO ≥ 2.3V
4.5
—
—
ns
DVIO ≥ 1.7V
DVIO ≥ 2.3V
3
—
—
ns
4.5
—
—
ns
DVIO ≥ 1.7V
—
—
9.5
ns
DVIO ≥ 3.3V
—
—
12
ns
DVIO ≥ 2.3V
—
—
16
ns
DVIO ≥ 1.7V
10
—
—
ns
(Note 2)
SDI High to CNVST Rising Edge
3-Wire Operation:
SDI Valid Setup time
tSU_SDIH_CNV
5
—
—
ns
tCNVH
10
—
—
ns
tEN
—
—
10
ns
DVIO ≥ 2.3V
—
—
15
ns
DVIO ≥ 1.7V
—
—
15
ns
(Note 2)
CNVST Pulse Width High Time
Output Enable Time
Output Disable Time
tDIS
MCP331x1-10
Sample Rate
fs
—
—
1
Msps
Input Acquisition Time
(Note 2)
tACQ
290
250
300
—
—
ns
-40°C ≤ TA ≤ 85°C
85°C < TA ≤ 125°C
Data Conversion Time
tCNV
—
—
700
710
750
ns
-40°C ≤ TA ≤ 85°C
85°C < TA ≤ 125°C
Time between Conversions
tCYC
1
—
—
µs
tCYC = tACQ + tCNV, fS = 1 Msps
Throughput rate
MCP331x1-05
Sample Rate
fs
—
—
500
kSPS
Input Acquisition Time (Note 2)
tACQ
700
800
—
ns
Data Conversion Time
tCNV
—
1200
1300
ns
-40°C ≤ TA ≤ 125°C
Time between Conversions
tCYC
2
—
—
µs
tCYC = tACQ + tCNV, fS = 500 kSPS
Note
1:
2:
Throughput rate
-40°C ≤ TA ≤ 125°C
This parameter is ensured by design and not 100% tested.
This parameter is ensured by characterization and not 100% tested.
TABLE 1-3:
TEMPERATURE CHARACTERISTICS
Parameters
Symbol
Min.
Typ.
Max.
Units
Operating Temperature Range
TA
-40
—
+125
°C
(Note 1)
Storage Temperature Range
TA
-65
—
+150
°C
(Note 1)
Thermal Resistance, MSOP-10
JA
—
202
—
°C/W
Thermal Resistance, TDFN-10
JA
—
68
—
°C/W
Conditions
Temperature Ranges
Thermal Package Resistance
Note
1:
The internal junction temperature (Tj) must not exceed the absolute maximum specification of +150oC.
DS20006122A-page 8
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
tCYC = 1/fS
SDI = “High”
tCNVH
tSU_SDIH_CNV
CNVST
tSCLK
1
SCLK
2
3
tDO
Hi-Z
SDO
Dn-1
(MSB)
tCNV (MAX)
Input Acquisition
(tACQ)
Dn-3
n
n-1
tSCLK_L
tSCLK_H
D1
tDIS
D0
tQUIET
Hi-Z
tEN
(Note 2)
tEN
ADC State
Dn-2
(Note 1)
(Note 3)
Conversion
(tCNV)
Input Acquisition
(tACQ)
Note 1: n = 16 for 16-bit, 14 for 14-bit device, and 12 for 12-bit device.
2: tEN when CNVST is lowered after tCNV (MAX).
3: tEN when CNVST is lowered before tCNV (MAX).
FIGURE 1-1:
Details.
Interface Timing Diagram. CNVST is used as chip select. See Figure 7-2 for More
2018 Microchip Technology Inc.
DS20006122A-page 9
MCP33131/MCP33121/MCP33111-XX
NOTES:
DS20006122A-page 10
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
2.0
TYPICAL PERFORMANCE CURVES FOR 16-BIT DEVICES (MCP33131-XX)
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
2
4
V REF = 5V
V REF = 2.5V
2
INL (LSB)
INL (LSB)
1
0
-1
-2
0
-2
0
16,384
32,768
49,152
-4
65,536
0
16,384
32,768
Code
FIGURE 2-1:
49,152
FIGURE 2-4:
INL vs. Output Code.
2
INL vs. Output Code.
2
V REF = 2.5V
1.5
1.5
1
1
DNL (LSB)
DNL (LSB)
V REF = 5V
0.5
0
0.5
0
-0.5
-1
65,536
Code
-0.5
0
16,384
32,768
49,152
-1
65,536
0
16,384
32,768
Code
FIGURE 2-2:
49,152
65,536
Code
FIGURE 2-5:
DNL vs. Output Code.
3
DNL vs. Output Code.
1.5
2
Max INL (LSB)
1
0
DNL (LSB)
INL (LSB)
Max DNL (LSB)
1
V REF = 5V
-1
Min INL (LSB)
-20
0
20
40
60
80
V REF = 5V
0
-0.5
-2
-3
-40
0.5
100
120
140
-1
-40
Min DNL (LSB)
-20
o
FIGURE 2-3:
INL vs. Temperature.
2018 Microchip Technology Inc.
0
20
40
60
80
100
120
140
Temperature (oC)
Temperature ( C)
FIGURE 2-6:
DNL vs. Temperature.
DS20006122A-page 11
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
2
8
6
DNL (LSB)
INL (LSB)
4
2
0
-2
-4
1
0.5
0
Min INL (LSB)
-0.5
-6
-8
Max DNL (LSB)
1.5
Max INL (LSB)
-1
2
2.5
3
3.5
4
4.5
5
5.5
Min DNL (LSB)
2
2.5
3
FIGURE 2-7:
INL vs. Reference Voltage.
FIGURE 2-10:
MCP33131-10
V REF = 5V
5
5.5
DNL vs. Reference Voltage.
SNR = 86.7 dBFS
SINAD = 86.6 dBFS
SFDR = 103.6 dBc
THD = -101.4 dBc
Resolution = 16-bit
-40
-60
-80
V REF = 2.5V
-20
fs = 1 Msps
-100
-120
-140
fs = 1 Msps
SNR = 81.7 dBFS
SINAD = 81.6 dBFS
SFDR = 98.0 dBc
THD = -95.8 dBc
Resolution = 16-bit
-40
-60
-80
-100
-120
-140
0
100
200
300
400
-160
500
0
100
Frequency (kHz)
-60
-80
500
0
fs = 0.5 Msps
-20
SNR = 86.7 dBFS
SINAD = 86.6 dBFS
SFDR = 105.0 dBc
THD = -101.5 dBc
Resolution = 16-bit
-40
Amplitude (dBFS)
-40
400
MCP33131-05
MCP33131-05
V REF = 5V
300
FIGURE 2-11:
FFT for 10 kHz Input Signal:
fS = 1 Msps, VIN = -1 dBFS, VREF = 2.5V.
0
-20
200
Frequency (kHz)
FIGURE 2-8:
FFT for 10 kHz Input Signal:
fS = 1 Msps, VIN = -1 dBFS, VREF = 5V.
Amplitude (dBFS)
4.5
MCP33131-10
Amplitude (dBFS)
Amplitude (dBFS)
-20
-100
-120
-140
-160
4
0
0
-160
3.5
Reference Voltage (V)
Reference Voltage (V)
VREF = 2.5V
fs = 0.5 Msps
SNR = 81.8 dBFS
SINAD = 81.7 dBFS
SFDR = 98.9 dBc
THD = -96.0 dBc
Resolution = 16-bit
-60
-80
-100
-120
-140
0
50
100
150
200
250
Frequency (kHz)
FIGURE 2-9:
FFT for 10 kHz Input Signal:
fS = 500 kSPS, VIN = -1 dBFS, VREF = 5V.
DS20006122A-page 12
-160
0
50
100
150
200
250
Frequency (kHz)
FIGURE 2-12:
FFT for 10 kHz Input Signal:
fS = 500 kSPS, VIN = -1 dBFS, VREF = 2.5V.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
90
14
-90
100
-92
98
84
82
13
80
ENOB
SNR (dB)
SINAD (dB)
78
-94
SFDR (dB)
13.5
THD (dB)
86
ENOB (Bits)
SNR/SINAD (dB)
88
96
THD (dB)
SFDR (dB)
12.5
-96
94
-98
92
76
74
2
2.5
3
3.5
4
4.5
-100
12
5.5
5
2
2.5
3
SNR/SINAD/ENOB vs. VREF
FIGURE 2-16:
SNR/SINAD (dB)
SNR/SINAD (dB)
87
86
85
SNR (dB)
SINAD (dB)
83
-40 -20
0
20
40
60
80
100 120 140
V REF = 2.5V
82
81
80
79
78
77
76
SNR (dB)
75
SINAD (dB)
74
-40 -20
0
Temperature ( C)
80
84
V REF = 5V
SNR/SINAD (dBFS)
89
SNR/SINAD (dBFS)
60
100 120 140
85
90
88
87
86
85
84
80
-30
40
FIGURE 2-17:
SNR/SINAD vs.
Temperature: VREF = 2.5V.
FIGURE 2-14:
SNR/SINAD vs.
Temperature: VREF = 5V.
81
20
Temperature (oC)
o
82
90
5.5
5
SFDR/THD vs. VREF
83
V REF = 5V
83
4.5
84
88
84
4
Reference Voltage (V)
Reference Voltage (V)
FIGURE 2-13:
3.5
SNR (dBFS)
SINAD(dBFS)
-25
-20
82
81
80
79
78
77
76
-15
-10
-5
Input Amplitude (dBFS)
FIGURE 2-15:
SNR/SINAD vs. Input
Amplitude: FIN = 10 kHz.
2018 Microchip Technology Inc.
0
V REF = 2.5V
83
75
-30
SNR (dBFS)
SINAD(dBFS)
-25
-20
-15
-10
-5
0
Input Amplitude (dBFS)
FIGURE 2-18:
SNR/SINAD vs. Input
Amplitude: FIN = 10 kHz.
DS20006122A-page 13
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
90
90
SNR/SINAD (dB)
84
82
80
78
76
72
SNR (dB)
84
82
80
78
76
74
SINAD (dB)
70
0
10
86
72
10
1
10
2
10
SNR (dB)
SINAD (dB)
70
0
10
3
10
-92
THD (dB)
SFDR (dB)
-100
THD (dB)
98
SFDR (dB)
THD (dB)
-98
THD (dB)
SFDR (dB)
96
40
98
-93
97
-94
96
-95
95
VREF = 2.5V
-96
-40 -20
94
80 100 120 140
60
20
40
60
94
80 100 120 140
Temperature ( C)
Temperature ( C)
FIGURE 2-23:
THD/SFDR vs.
Temperature: VREF = 2.5V.
FIGURE 2-20:
THD/SFDR vs.
Temperature: VREF = 5V.
-75
110
THD (dB)
SFDR (dB)
-75
110
THD (dB)
SFDR (dB)
-80
-85
100
-85
100
-90
95
-90
95
-95
90
-95
90
-100
85
-100
85
80
-105
-105
-110
0
10
VREF = 5V
10
1
10
2
75
3
10
Input Frequency (kHz)
FIGURE 2-21:
THD/SFDR vs. Input
Frequency: VREF = 5V.
DS20006122A-page 14
THD (dB)
105
SFDR (dB)
THD (dB)
0
o
o
-80
3
99
-92
VREF = 5V
20
10
100
-91
102
100
0
2
-90
104
-96
-102
-40 -20
10
FIGURE 2-22:
SNR/SINAD vs.Input
Frequency: VIN = -1 dBFS.
FIGURE 2-19:
SNR/SINAD vs.Input
Frequency: VIN = -1 dBFS.
-94
1
Input Frequency (kHz)
Input Frequency (kHz)
SFDR (dB)
SNR/SINAD (dB)
86
74
V REF = 2.5V
88
V REF = 5V
88
-110
100
105
SFDR (dB)
Note:
80
VREF = 2.5V
101
102
75
103
Input Frequency (kHz)
FIGURE 2-24:
THD/SFDR vs. Input
Frequency: VREF = 2.5V.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
-65
-70
95
-70
-75
90
-75
THD (dB)
-80
85
VREF = 5V
-85
80
-90
75
-95
-80
105
THD (dB)
SFDR (dB)
100
95
90
85
VREF = 2.5V
-85
80
-90
75
70
-95
70
-100
65
-100
65
-105
-30
60
-105
-30
-25
-20
-15
-10
-5
0
-25
-20
Input Amplitude (dBFS)
10
5
Occurrences
14132 143
3
4
5
6
7
8
5
9
0
-5
10
-3
-1
1
FIGURE 2-29:
VREF = 2.5V.
10.49
400
700
9.18
300
600
7.86
Offset Error
6.55
400
5.24
300
3.93
Gain Error
200
2.62
100
1.31
VREF = 5V
0
-100
-40
-20
0
20
40
60
80
0
-1.31
100 120 140
Temperature (oC)
FIGURE 2-27:
Offset and Gain Error vs.
Temperature: VREF = 5V.
2018 Microchip Technology Inc.
Offset/Gain Error (uV)
800
Offset/Gain Error (LSB)
Offset/Gain Error (uV)
Shorted Input Histogram:
500
5
7
9
11
13
15
Output Code
Output Code
FIGURE 2-26:
VREF = 5V.
3
1167
2377
2
12208
1
20814
27533
12848
18039
50970
0
1
119771
9092
0
2
128876
137150
4
3
133072
79707
12211
Occurrences
6
93862
60
V REF = 2.5V
402464
4
59995
65 3224
0
105
V REF = 5V
757379
2
-5
FIGURE 2-28:
THD/SFDR vs. Input
Amplitude: VREF = 2.5V.
5
8
-10
Input Amplitude (dBFS)
FIGURE 2-25:
THD/SFDR vs. Input
Amplitude: VREF = 5V.
10
-15
SFDR (dB)
-60
100
THD (dB)
105
THD (dB)
SFDR (dB)
-65
SFDR (dB)
-60
Shorted Input Histogram:
10.49
7.86
Offset Error
200
5.24
100
2.62
0
0
-100
-2.62
Gain Error
-200
-5.24
-300
-7.86
VREF = 2.5V
-400
-500
-40
-20
0
20
40
60
80
Offset/Gain Error (LSB)
Note:
-10.49
-13.11
100 120 140
o
Temperature ( C)
FIGURE 2-30:
Offset and Gain Error vs.
Temperature: VREF = 2.5V.
DS20006122A-page 15
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33131-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33131-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
8
86
V
REF
16
= 5V
78
1.
8V
)
8
D
(A
V
D
=
4
IIO_STBY (DVIO = 3.3V)
Y
CMRR (dB)
80
12
Total Power Consumption
TB
Current (A)
6
82
4
I
D
D
A
N
_S
2
Total Power (W)
84
76
10-1
100
101
102
103
Temperature (°C)
Input Frequency (kHz)
FIGURE 2-31:
VREF = 5V.
CMRR vs. Input Frequency:
2
FIGURE 2-34:
Power Consumption vs.
Temperature During Shutdown.
2
8
(AV D
D
l
ota
n
tio
mp
su
I DDAN
r
we
Po
n
Co
4
T
I REF
2
(V REF = 5V)
(AV DD
1
0
0.1
10
6
4
IREF (VREF = 5V)
2
1
Temperature (°C)
FIGURE 2-33:
Power Consumption vs.
Temperature: CLOAD_SDO = 20 pF.
I DDAN (AV DD
Total Power
= 1.8V)
Consumption
0.5
6
4
2
IREF (VREF = 5V)
IIO_DATA (DVIO = 3.3V)
0
20 35 50 65 80 95 110 125
DS20006122A-page 16
0
0.5
8
1.5
Current (mA)
n
Total Power (mW)
Current (mA)
8
1
0
-40 -25 -10 5
0.4
MCP331x1-05
nsumptio
0.5
0.3
2
= 1.8V
er Co
Total Pow
1.5
0.2
2
IREF (VREF = 5V)
FIGURE 2-35:
Power Consumption vs.
Sample Rate: CLOAD_SDO = 20 pF.
)
(AV DD
we
l Po
Tota
0.5
ns
r Co
Sample Rate (Msps)
2.5
I DDAN
4
tion
ump
0
FIGURE 2-32:
Power Consumption vs.
Sample Rate: CLOAD_SDO = 20 pF.
2
.8
=1
I DDAN
1
Sample Rate (Msps)
MCP331x1-10
6
V)
IIO_DATA (DVIO = 3.3V)
)
I IO_DATA (DVIO = 3.3V
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1.5
Current (mA)
6
)
.8V
=1
Total Power (mW)
Current (mA)
1.5
0.5
8
MCP331x1-05
MCP331x1-10
1
0
20 35 50 65 80 95 110 125
Total Power (mW)
10-2
Total Power (mW)
74
10-3
IREF_STBY (VREF = 5V)
0
-40 -25 -10 5
0
-40 -25 -10 5
IIO_DATA (DVIO = 3.3V)
0
20 35 50 65 80 95 110 125
Temperature (°C)
FIGURE 2-36:
Power Consumption vs.
Temperature: CLOAD_SDO = 20 pF.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
3.0
TYPICAL PERFORMANCE CURVES FOR 14-BIT DEVICES (MCP33121-XX)
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33121-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33121-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
1
1
V REF = 5V
V REF = 2.5V
0.5
INL (LSB)
INL (LSB)
0.5
0
-0.5
-1
0
-0.5
0
4,096
8,192
12,288
-1
16,384
0
4,096
8,192
Code
FIGURE 3-1:
12,288
FIGURE 3-4:
INL vs. Output Code.
INL vs. Output Code.
1
1
V REF = 2.5V
V REF = 5V
0.5
DNL (LSB)
DNL (LSB)
0.5
0
-0.5
-1
16,384
Code
0
-0.5
0
4,096
8,192
12,288
-1
16,384
0
4,096
8,192
Code
FIGURE 3-2:
12,288
16,384
Code
FIGURE 3-5:
DNL vs. Output Code.
DNL vs. Output Code.
1
1
0.8
Max INL (LSB)
0.6
Max DNL (LSB)
0.5
DNL (LSB)
INL (LSB)
0.4
0.2
0
V REF = 5V
-0.2
-0.4
0
V REF = 5V
Min DNL (LSB)
-0.5
-0.6
Min INL (LSB)
-0.8
-1
-40
-20
0
20
40
60
80
100
120
140
-1
-40
-20
FIGURE 3-3:
INL vs. Temperature.
2018 Microchip Technology Inc.
0
20
40
60
80
100
120
140
Temperature (oC)
Temperature (oC)
FIGURE 3-6:
DNL vs. Temperature.
DS20006122A-page 17
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33121-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33121-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
2
1
1.5
Max DNL (LSB)
Max INL (LSB)
0.5
DNL (LSB)
INL (LSB)
1
0.5
0
-0.5
-1
0
-0.5
Min INL (LSB)
Min DNL (LSB)
-1.5
-2
2
2.5
3
3.5
4
4.5
5
-1
5.5
2
2.5
3
Reference Voltage (V)
FIGURE 3-7:
INL vs. Reference Voltage.
FIGURE 3-10:
V REF = 5V
SNR = 83.6 dBFS
SINAD = 83.6 dBFS
SFDR = 104.3 dBc
THD = -100.8 dBc
Resolution = 14-bit
-40
-60
-80
Amplitude (dBFS)
Amplitude (dBFS)
5
5.5
DNL vs. Reference Voltage.
VREF = 2.5V
-20
fs = 1 Msps
-100
-120
-140
fs = 1 Msps
SNR = 80.3 dBFS
SINAD = 80.2 dBFS
SFDR = 97.9 dBc
THD = -95.8 dBc
Resolution = 14-bit
-40
-60
-80
-100
-120
-140
0
100
200
300
400
-160
500
0
100
200
Frequency (kHz)
400
500
FIGURE 3-11:
FFT for 10 kHz Input Signal:
fS = 1 Msps, VIN = -1 dBFS, VREF = 2.5V.
MCP33121-05
MCP33121-05
0
0
VREF = 5V
-20
300
Frequency (kHz)
FIGURE 3-8:
FFT for 10 kHz Input Signal:
fS = 1 Msps, VIN = -1 dBFS, VREF = 5V.
fs = 0.5 Msps
-40
-60
-80
V REF = 2.5V
-20
SNR = 83.5 dBFS
SINAD = 83.4 dBFS
SFDR = 105.0 dBc
THD = -101.6 dBc
Resolution = 14-bit
Amplitude (dBFS)
Amplitude (dBFS)
4.5
0
-20
-100
-120
-140
-160
4
MCP33121-10
MCP33121-10
0
-160
3.5
Reference Voltage (V)
fs = 0.5 Msps
SNR = 80.6 dBFS
SINAD = 80.5 dBFS
SFDR = 99.4 dBc
THD = -96.4 dBc
Resolution = 14-bit
-40
-60
-80
-100
-120
-140
0
50
100
150
200
250
Frequency (kHz)
FIGURE 3-9:
FFT for 10 kHz Input Signal:
fS = 500 kSPS, VIN = -1 dBFS, VREF = 5V.
DS20006122A-page 18
-160
0
50
100
150
200
250
Frequency (kHz)
FIGURE 3-12:
FFT for 10 kHz Input Signal:
fS = 500 kSPS, VIN = -1 dBFS, VREF = 2.5V.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33121-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33121-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
-90
100
84
13.5
-92
98
82
13
80
12.5
76
2
2.5
3
3.5
4
4.5
5
SFDR (dB)
94
12
-98
92
11.5
5.5
-100
2
2.5
3
Reference Voltage (V)
FIGURE 3-16:
85
SNR/SINAD (dB)
SNR/SINAD (dB)
83
82
SNR (dB)
SINAD (dB)
80
-40 -20
0
20
40
60
80
100 120 140
V REF = 2.5V
79
78
77
76
75
74
SNR (dB)
73
SINAD (dB)
72
-40 -20
0
60
80
100 120 140
86
SNR/SINAD (dBFS)
84
83
82
81
80
SNR (dBFS)
SINAD(dBFS)
-25
-20
84
83
82
81
80
79
78
77
-15
-10
-5
Input Amplitude (dBFS)
FIGURE 3-15:
SNR/SINAD vs. Input
Amplitude: FIN = 10 kHz.
2018 Microchip Technology Inc.
V REF = 2.5V
85
V REF = 5V
85
SNR/SINAD (dBFS)
40
FIGURE 3-17:
SNR/SINAD vs.
Temperature: VREF = 2.5V.
86
76
-30
20
Temperature (oC)
FIGURE 3-14:
SNR/SINAD vs.
Temperature: VREF = 5V.
77
90
5.5
5
80
Temperature (oC)
78
4.5
SFDR/THD vs. VREF.
81
84
79
4
82
V REF = 5V
81
3.5
Reference Voltage (V)
SNR/SINAD/ENOB vs. VREF.
FIGURE 3-13:
96
THD (dB)
-96
ENOB
SNR (dB)
SINAD (dB)
78
-94
SFDR (dB)
14
THD (dB)
86
ENOB (Bits)
SNR/SINAD (dB)
Note:
0
76
-30
SNR (dBFS)
SINAD(dBFS)
-25
-20
-15
-10
-5
0
Input Amplitude (dBFS)
FIGURE 3-18:
SNR/SINAD vs. Input
Amplitude: FIN = 10 kHz.
DS20006122A-page 19
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33121-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33121-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
90
90
V REF = 5V
84
82
80
78
76
72
SNR (dB)
84
82
80
78
76
74
SINAD (dB)
70
100
86
72
101
102
SNR (dB)
SINAD (dB)
70
100
103
101
Input Frequency (kHz)
-92
FIGURE 3-22:
SNR/SINAD vs.Input
Frequency: VIN = -1 dBFS.
104
THD (dB)
SFDR (dB)
-98
98
-100
THD (dB)
100
100
THD (dB)
SFDR (dB)
-91
SFDR (dB)
THD (dB)
-90
102
-96
96
0
20
40
60
98
-93
97
-94
96
-95
95
VREF = 2.5V
94
80 100 120 140
-96
-40 -20
o
Temperature ( C)
0
20
40
60
94
80 100 120 140
o (oC)
Temperature
Temperature ( C)
FIGURE 3-23:
THD/SFDR vs.
Temperature: VREF = 2.5V.
FIGURE 3-20:
THD/SFDR vs.
Temperature: VREF = 5V.
-75
-75
110
THD (dB)
SFDR (dB)
110
THD (dB)
SFDR (dB)
-85
100
-85
100
-90
95
-90
95
-95
90
-95
90
-100
85
-100
85
80
-105
-105
-110
100
VREF = 5V
101
102
75
103
Input Frequency (kHz)
FIGURE 3-21:
THD/SFDR vs. Input
Frequency: VREF = 5V.
DS20006122A-page 20
THD (dB)
-80
SFDR (dB)
105
-80
THD (dB)
99
-92
VREF = 5V
-102
-40 -20
103
Input Frequency (kHz)
FIGURE 3-19:
SNR/SINAD vs.Input
Frequency: VIN = -1 dBFS.
-94
102
SFDR (dB)
74
V REF = 2.5V
88
86
SNR/SINAD (dB)
SNR/SINAD (dB)
88
-110
100
105
SFDR (dB)
Note:
80
VREF = 2.5V
101
102
75
103
Input Frequency (kHz)
FIGURE 3-24:
THD/SFDR vs. Input
Frequency: VREF = 2.5V.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33121-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33121-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
-70
-75
90
-75
-80
85
VREF = 5V
70
65
-100
65
60
-105
-30
-100
-105
-30
0
-25
105
10
985144
0
60
V REF = 2.5V
6
4
719460
6
4
234082
2
2
79234
15798
63284
148
-2
-1
0
1
2
3
4
0
-4
5
-3
-2
-1
Output Code
FIGURE 3-26:
VREF = 5V.
0
1
2
3
2
4
5
6
Output Code
Shorted Input Histogram:
FIGURE 3-29:
VREF = 2.5V.
Shorted Input Histogram:
2.29
400
2.62
600
1.97
300
1.97
500
1.64
Offset Error
400
1.31
300
0.98
200
0.66
Gain Error
VREF = 5V
100
0
-40
-20
0
20
40
60
80
0.33
0
100 120 140
o
Temperature ( C)
FIGURE 3-27:
Offset and Gain Error vs.
Temperature: VREF = 5V.
2018 Microchip Technology Inc.
Offset/Gain Error (uV)
700
Offset/Gain Error (LSB)
Offset/Gain Error (uV)
-5
105
8
8
0
-3
-10
V REF = 5V
Occurrences
Occurrences
-15
FIGURE 3-28:
THD/SFDR vs. Input
Amplitude: VREF = 2.5V.
FIGURE 3-25:
THD/SFDR vs. Input
Amplitude: VREF = 5V.
10
-20
Input Amplitude (dBFS)
Input Amplitude (dBFS)
12
85
VREF = 2.5V
75
70
-5
90
-80
-95
75
-95
-10
95
-90
-90
-15
100
80
80
-20
105
THD (dB)
SFDR (dB)
-85
-85
-25
THD (dB)
-65
95
SFDR (dB)
100
-70
-65
THD (dB)
-60
105
THD (dB)
SFDR (dB)
SFDR (dB)
-60
200
1.31
Offset Error
100
0.66
0
0
Gain Error
-100
-0.66
VREF = 2.5V
-200
-300
-40
-20
0
20
40
60
80
-1.31
Offset/Gain Error (LSB)
Note:
-1.97
100 120 140
o
Temperature ( C)
FIGURE 3-30:
Offset and Gain Error vs.
Temperature: VREF = 2.5V.
DS20006122A-page 21
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33121-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33121-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
86
8
VREF = 5V
16
1.
8V
)
D
V
D
=
8
(A
78
4
IIO_STBY (DVIO = 3.3V)
Y
CMRR (dB)
80
12
Total Power Consumption
TB
Current (A)
6
82
4
D
A
N
_S
2
Total Power (W)
84
I
D
76
IREF_STBY (VREF = 5V)
10-1
100
101
102
0
-40 -25 -10 5
103
Input Frequency (kHz)
FIGURE 3-31:
VREF = 5V.
Temperature (°C)
CMRR vs. Input Frequency:
2
FIGURE 3-34:
Power Consumption vs.
Temperature During Shutdown.
8
2
MCP331x1-10
D
l
ota
n
tio
mp
su
r
we
Po
n
Co
4
T
2
I REF
(V REF = 5V)
(AV DD
1
=1
I DDAN
1
4
tion
wer
l Po
Tota
0.5
0
0
0.1
Sample Rate (Msps)
0.2
mp
nsu
Co
2
IREF (VREF = 5V)
0.3
0.4
0
0.5
Sample Rate (Msps)
FIGURE 3-32:
Power Consumption vs.
Sample Rate: CLOAD_SDO = 20 pF.
2.5
FIGURE 3-35:
Power Consumption vs.
Sample Rate: CLOAD_SDO = 20 pF.
10
MCP331x1-10
1
6
4
IREF (VREF = 5V)
0.5
2
1.5
Current (mA)
Total Pow
8
8
MCP331x1-05
Total Power (mW)
(AV DD
= 1.8V
ption
er Consum
1.5
2
)
I DDAN
2
Current (mA)
6
)
.8V
IIO_DATA (DVIO = 3.3V)
)
I IO_DATA (DVIO = 3.3V
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1.5
Current (mA)
(AV D
I DDAN
Total Power (mW)
Current (mA)
6
)
.8V
=1
0.5
8
MCP331x1-05
1.5
1
0
20 35 50 65 80 95 110 125
Total Power (mW)
10-2
1
0
20 35 50 65 80 95 110 125
Temperature (°C)
FIGURE 3-33:
Power Consumption vs.
Temperature: CLOAD_SDO = 20 pF.
DS20006122A-page 22
Total Power
= 1.8V)
Consumption
0.5
6
4
2
IREF (VREF = 5V)
IIO_DATA (DVIO = 3.3V)
0
-40 -25 -10 5
I DDAN (AV DD
Total Power (mW)
74
10-3
0
-40 -25 -10 5
IIO_DATA (DVIO = 3.3V)
0
20 35 50 65 80 95 110 125
Temperature (°C)
FIGURE 3-36:
Power Consumption vs.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
4.0
TYPICAL PERFORMANCE CURVES FOR 12-BIT DEVICES (MCP33111-XX)
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33111-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33111-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
0.5
0.5
V REF = 5V
V REF = 2.5V
0.3
INL (LSB)
INL (LSB)
0.3
0.1
-0.1
-0.3
-0.5
0.1
-0.1
-0.3
0
1,024
2,048
3,072
-0.5
4,096
0
1,024
2,048
Code
FIGURE 4-1:
3,072
FIGURE 4-4:
INL vs. Output Code.
0.5
INL vs. Output Code.
0.5
V REF = 5V
V REF = 2.5V
0.3
DNL (LSB)
DNL (LSB)
0.3
0.1
-0.1
-0.3
-0.5
0.1
-0.1
-0.3
0
1,024
2,048
3,072
-0.5
4,096
0
1,024
2,048
Code
FIGURE 4-2:
DNL vs. Output Code.
FIGURE 4-5:
4,096
DNL vs. Output Code.
0.2
Max INL (LSB)
0.15
0.15
0.1
Max DNL (LSB)
V REF = 5V
0
-0.05
-0.1
DNL (LSB)
0.1
0.05
0.05
0
V REF = 5V
-0.05
-0.1
-0.15
-0.2
-40
3,072
Code
0.2
INL (LSB)
4,096
Code
Min INL (LSB)
-20
0
20
40
60
80
Min DNL (LSB)
-0.15
100 120 140
-0.2
-40
-20
o
FIGURE 4-3:
INL vs. Temperature.
2018 Microchip Technology Inc.
0
20
40
60
80
100
120
140
Temperature (oC)
Temperature ( C)
FIGURE 4-6:
DNL vs. Temperature.
DS20006122A-page 23
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33111-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33111-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
0.6
0.5
0.4
Max DNL (LSB)
DNL (LSB)
INL (LSB)
Max INL (LSB)
0.2
0
-0.2
0
Min DNL (LSB)
Min INL (LSB)
-0.4
-0.6
2
2.5
3
3.5
4
4.5
5
-0.5
2
5.5
2.5
Reference Voltage (V)
FIGURE 4-7:
INL vs. Reference Voltage.
MCP33111-10
V REF = 5V
4.5
5
5.5
DNL vs. Reference Voltage.
MCP33111-10
V REF = 2.5V
fs = 1 Msps
Amplitude (dBFS)
-60
fs = 1 Msps
-20
SNR = 73.8 dBFS
SINAD = 73.7 dBFS
SFDR = 99.7 dBc
THD = -98.4 dBc
Resolution = 12-bit
-40
-80
-100
SNR = 73.4 dBFS
SINAD = 73.4 dBFS
SFDR = 99.0 dBc
THD = -95.1 dBc
Resolution = 12-bit
-40
-60
-80
-100
0
100
200
300
400
-120
500
0
100
Frequency (kHz)
300
400
500
FIGURE 4-11:
FFT for 10 kHz Input Signal:
fS = 1 Msps, VIN = -1 dBFS, VREF = 2.5V.
MCP33111-05
MCP33111-05
0
0
V REF = 5V
V REF = 2.5V
fs = 0.5 Msps
-20
Amplitude (dBFS)
-60
fs = 0.5 Msps
-20
SNR = 73.8 dBFS
SINAD = 73.8 dBFS
SFDR = 99.9 dBc
THD = -97.5 dBc
Resolution = 12-bit
-40
-80
SNR = 73.4 dBFS
SINAD = 73.4 dBFS
SFDR = 100.1 dBc
THD = -96.4 dBc
Resolution = 12-bit
-40
-60
-80
-100
-100
-120
200
Frequency (kHz)
FIGURE 4-8:
FFT for 10 kHz Input Signal:
fS = 1 Msps, VIN = -1 dBFS, VREF = 5V.
Amplitude (dBFS)
4
0
-20
Amplitude (dBFS)
3.5
FIGURE 4-10:
0
-120
3
Reference Voltage (V)
-120
0
50
100
150
200
250
Frequency (kHz)
FIGURE 4-9:
FFT for 10 kHz Input Signal:
fS = 500 kSPS, VIN = -1 dBFS, VREF = 5V.
DS20006122A-page 24
0
50
100
150
200
250
Frequency (kHz)
FIGURE 4-12:
FFT for 10 kHz Input Signal:
fS = 500 kSPS, VIN = -1 dBFS, VREF = 2.5V.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
11.9
73
11.8
72.5
11.7
ENOB
SNR (dB)
SINAD (dB)
72
71.5
2
2.5
3
3.5
4
4.5
11.6
100
-91
98
-92
96
THD (dB)
SFDR (dB)
-93
-95
92
2
2.5
Reference Voltage (V)
FIGURE 4-13:
SNR/SINAD/ENOB vs. VREF
3.5
FIGURE 4-16:
4
4.5
SFDR/THD vs. VREF
SNR/SINAD (dB)
72.8
72.6
SNR (dB)
SINAD (dB)
72.2
-40 -20
0
20
73
72.5
72
71.5
71
70.5
40
60
80
V REF = 2.5V
73.5
73
SNR (dB)
SINAD (dB)
70
-40 -20
100 120 140
Temperature (oC)
0
20
40
60
80
FIGURE 4-17:
SNR/SINAD vs.
Temperature: VREF = 2.5V.
75
75
V REF = 2.5V
74
SNR/SINAD (dBFS)
SNR/SINAD (dBFS)
V REF = 5V
73
72
70
-30
100 120 140
Temperature (oC)
FIGURE 4-14:
SNR/SINAD vs.
Temperature: VREF = 5V.
71
90
5.5
5
74
V REF = 5V
SNR/SINAD (dB)
3
Reference Voltage (V)
73.2
72.4
94
-94
11.5
5.5
5
-90
SFDR (dB)
73.5
THD (dB)
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33111-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33111-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
ENOB (Bits)
SNR/SINAD (dB)
Note:
SNR (dBFS)
SINAD(dBFS)
-25
-20
-15
-10
-5
Input Amplitude (dBFS)
FIGURE 4-15:
SNR/SINAD vs. Input
Amplitude: FIN = 10 kHz.
2018 Microchip Technology Inc.
0
74
73
72
71
70
-30
SNR (dBFS)
SINAD(dBFS)
-25
-20
-15
-10
-5
0
Input Amplitude (dBFS)
FIGURE 4-18:
SNR/SINAD vs. Input
Amplitude: FIN = 10 kHz.
DS20006122A-page 25
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33111-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33111-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
80
80
V REF = 5V
74
72
70
68
66
62
SNR (dB)
74
72
70
68
66
64
SINAD (dB)
60
0
10
76
62
10
1
10
2
10
SNR (dB)
SINAD (dB)
60
100
3
101
Input Frequency (kHz)
103
Input Frequency (kHz)
FIGURE 4-22:
SNR/SINAD vs. Input
Frequency: VIN = -1 dBFS.
FIGURE 4-19:
SNR/SINAD vs. Input
Frequency: VIN = -1 dBFS.
99
-91
-92
98
-92
98
-93
97
-93
97
-94
96
-94
96
THD (dB)
SFDR (dB)
-91
-95
THD (dB)
-90
SFDR (dB)
100
-90
THD (dB)
102
100
THD (dB)
SFDR (dB)
-95
95
95
VREF = 2.5V
VREF = 5V
-96
-40 -20
0
20
40
60
-96
-40 -20
94
80 100 120 140
20
40
60
94
80 100 120 140
FIGURE 4-23:
THD/SFDR vs.
Temperature: VREF = 2.5V.
FIGURE 4-20:
THD/SFDR vs.
Temperature: VREF = 5V.
-75
110
THD (dB)
SFDR (dB)
-75
110
THD (dB)
SFDR (dB)
-80
-85
100
-85
100
-90
95
-90
95
-95
90
-95
90
-100
85
-100
85
80
-105
-105
-110
0
10
VREF = 5V
10
1
10
2
75
3
10
Input Frequency (kHz)
FIGURE 4-21:
THD/SFDR vs. Input
Frequency: VREF = 5V.
DS20006122A-page 26
THD (dB)
105
SFDR (dB)
THD (dB)
0
Temperature (oC)
Temperature (oC)
-80
99
SFDR (dB)
64
V REF = 2.5V
78
76
SNR/SINAD (dB)
SNR/SINAD (dB)
78
-110
100
105
SFDR (dB)
Note:
80
VREF = 2.5V
101
102
75
103
Input Frequency (kHz)
FIGURE 4-24:
THD/SFDR vs. Input
Frequency: VREF = 2.5V.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33111-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33111-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
-55
100
-60
-65
95
-65
-70
90
-70
85
VREF = 5V
-80
80
-85
75
-90
70
-95
-100
-30
-25
-20
-15
-10
-5
0
-75
105
THD (dB)
SFDR (dB)
95
90
-80
80
-85
75
-90
70
65
-95
65
60
-100
-30
-25
5
12
10
-5
0
60
1048574
V REF = 2.5V
Occurrences
10
8
6
4
2
8
6
4
2
0
-3
-2
-1
0
1
2
0
-3
3
2
-2
-1
Output Code
FIGURE 4-26:
VREF = 5V.
Shorted Input Histogram:
300
0.25
200
0.16
100
0.08
Offset Error
VREF = 5V
-20
0
20
40
60
80
0
-0.08
100 120 140
o
Temperature ( C)
FIGURE 4-27:
Offset and Gain Error vs.
Temperature: VREF = 5V.
2018 Microchip Technology Inc.
Offset/Gain Error (uV)
0.33
Gain Error
Offset/Gain Error (LSB)
400
-100
-40
FIGURE 4-29:
VREF = 2.5V.
0.41
0
0
1
2
3
Output Code
500
Offset/Gain Error (uV)
-10
5
V REF = 5V
1048576
-15
FIGURE 4-28:
THD/SFDR vs. Input
Amplitude: VREF = 2.5V.
10
Occurrences
-20
Input Amplitude (dBFS)
FIGURE 4-25:
THD/SFDR vs. Input
Amplitude: VREF = 5V.
10
85
VREF = 2.5V
Input Amplitude (dBFS)
12
100
Shorted Input Histogram:
300
0.49
200
0.33
100
0.16
Offset Error
0
0
Gain Error
-100
-0.16
VREF = 2.5V
-200
-300
-40
-20
0
20
40
60
80
-0.33
Offset/Gain Error (LSB)
THD (dB)
-75
THD (dB)
105
THD (dB)
SFDR (dB)
-60
SFDR (dB)
-55
SFDR (dB)
Note:
-0.49
100 120 140
o
Temperature ( C)
FIGURE 4-30:
Offset and Gain Error vs.
Temperature: VREF = 2.5V.
DS20006122A-page 27
MCP33131/MCP33121/MCP33111-XX
Note:
Unless otherwise specified, all parameters apply for TA = +25°C, AVDD = 1.8V, DVIO = 3.3V,
VREF = 5V, GND = 0V, Differential Analog Input (VIN) = -1 dBFS, fIN = 10 kHz, CLOAD_SDO = 20 pF.
MCP33111-10: Sample Rate (fS) = 1 Msps, SPI Clock Input (SCLK) = 60 MHz.
MCP33111-05: Sample Rate (fS) = 500 kSPS, SPI Clock Input (SCLK) = 30 MHz.
8
86
16
VREF = 5V
78
1.
8V
)
8
D
(A
V
D
=
4
IIO_STBY (DVIO = 3.3V)
Y
CMRR (dB)
80
12
Total Power Consumption
TB
Current (A)
6
82
4
I
D
D
A
N
_S
2
Total Power (W)
84
76
10-2
10-1
100
101
102
103
Temperature (°C)
Input Frequency (kHz)
FIGURE 4-31:
VREF = 5V.
CMRR vs. Input Frequency:
2
FIGURE 4-34:
Power Consumption vs.
Temperature During Shutdown.
2
8
(AV D
D
l
ota
n
tio
mp
su
I DDAN
r
we
Po
n
Co
4
T
2
I REF
(V REF = 5V)
6
1
)
.8V
(AV DD
=1
I DDAN
1
4
tion
ump
0
0
0.1
Sample Rate (Msps)
0.2
ns
r Co
we
l Po
Tota
0.5
2
IREF (VREF = 5V)
IIO_DATA (DVIO = 3.3V)
)
I IO_DATA (DVIO = 3.3V
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1.5
Current (mA)
6
)
.8V
=1
Total Power (mW)
Current (mA)
1.5
0.5
8
MCP331x1-05
MCP331x1-10
1
0
20 35 50 65 80 95 110 125
Total Power (mW)
74
10-3
IREF_STBY (VREF = 5V)
0
-40 -25 -10 5
0.3
0.4
0
0.5
Sample Rate (Msps)
FIGURE 4-35:
Power Consumption vs.
Sample Rate: CLOAD_SDO = 20 pF.
FIGURE 4-32:
Power Consumption vs.
Sample Rate: CLOAD_SDO = 20 pF.
MCP331x1D-10
= 1.8V
Total Pow
1.5
1
6
4
IREF (VREF = 5V)
0.5
2
IIO_DATA (DVIO = 3.3V)
0
-40 -25 -10 5
0
20 35 50 65 80 95 110 125
Temperature (°C)
FIGURE 4-33:
Power Consumption vs.
Temperature: CLOAD_SDO = 20 pF.
DS20006122A-page 28
1.5
Current (mA)
ption
er Consum
8
Total Power (mW)
(AV DD
8
MCP331x1-05
)
I DDAN
2
Current (mA)
2
10
MCP331x1-10
1
I DDAN (AV DD
Total Power
= 1.8V)
Consumption
0.5
6
4
2
Total Power (mW)
2.5
IREF (VREF = 5V)
0
-40 -25 -10 5
IIO_DATA (DVIO = 3.3V)
0
20 35 50 65 80 95 110 125
Temperature (°C)
FIGURE 4-36:
Power Consumption vs.
Temperature: CLOAD_SDO = 20 pF.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
5.0
PIN FUNCTION DESCRIPTIONS
TABLE 5-1:
PIN FUNCTION TABLE
Pin Number
Pin Name
Function
1
VREF
2
AVDD
3
4
AIN+
AIN-
5
GND
6
CNVST
7
SDO
8
SCLK
9
10
SDI
DVIO
Reference voltage input (2.5V - 5.1V).
This pin should be decoupled with a 10 F tantalum capacitor.
DC supply voltage input for analog section (1.8V).
This pin should be decoupled with a 1 F ceramic capacitor.
Analog input.
Ground reference pin for analog input. Connect this pin to the ground reference of the
analog input.
Power supply ground reference. This pin is a common ground for both the analog
power supply (AVDD) and digital I/O supply (DVIO).
Conversion-start control and active-low SPI chip-select digital input.
A new conversion is started on the rising edge of CNVST.
When the conversion is complete, output data is available at SDO by lowering CNVST.
SPI-compatible serial digital data output: ADC conversion data is shifted out by SCLK
clock, with MSB first.
SPI-compatible serial data clock digital input.
The ADC output is synchronously shifted out by this clock.
SPI-compatible serial data digital input. Tie to DVIO for normal operation.
DC supply voltage for digital input/output interface (1.7V - 5.5V).
This pin should be decoupled with a 0.1 F ceramic capacitor.
5.1
Supply Voltages (AVDD, DVIO)
Note:
The reference pin needs a tantalum
decoupling capacitor (10 F, 10V rating).
Additional multiple ceramic capacitors can
be added in parallel to decouple
high-frequency noises.
Note:
During the initial power-up sequence, the
reference voltage (VREF) must be
provided prior to supplying AVDD or within
about 64 ms after supplying AVDD.
Otherwise, it is strongly recommended to
send a recalibrate command. See
Section 7.1 “Recalibrate Command” for
more details.
The device has two power supply pins:
(a) Analog power supply (AVDD): 1.8V
(b) Digital input/output interface power supply (DVIO):
1.7V to 5.5V.
The large supply voltage range of DVIO allows the
device to interface with various host devices that are
operating with different supply voltages. See Table 1-2
for timing specifications for I/O interface signal
parameters depending on DVIO voltage.
Note:
5.2
Proper decoupling capacitors (1 F to
AVDD, 0.1 F to DVIO) should be mounted
as close as possible to the respective
pins. See Figure 6-1 for example circuit.
Reference Voltage (VREF)
The device requires a single-ended external reference
voltage (VREF). The external input reference range is
from 2.5V to 5.1V. This reference voltage sets the
input full-scale range from 0V to VREF. See Figure 6-1
to Figure 6-2 for example application circuit and
reference voltage settings.
2018 Microchip Technology Inc.
5.2.1
VOLTAGE REFERENCE
SELECTION
The performance of the voltage reference has a large
impact on the accuracy of high-precision data
acquisition systems. The voltage reference should
have high-accuracy, low-noise, and low-temperature
drift. A ±0.1% output accuracy of the reference directly
corresponds to ±0.1% absolute accuracy of the ADC
output. The RMS output noise voltage of the reference
should be less than 1/2 LSB of the ADC.
DS20006122A-page 29
MCP33131/MCP33121/MCP33111-XX
6.0
DEVICE OVERVIEW
The device converts unipolar single-ended analog
input into unipolar straight binary codes.
time. Although the device can be driven directly with a
low impedance source, using a low noise input driver is
highly recommended.
When the MCP33131/MCP33121/MCP33111-XX is
first powered-up, it performs a self-calibration and
enters a low current input acquisition mode (Standby)
by itself.
The external reference voltage (VREF) ranging from
2.5V to 5.1V sets the input full-scale range (FSR) from
0V to +VREF.
MCP331x1-XX
VREF
The device initiates data conversion on the rising edge
of the conversion-start control (CNVST). The data conversion time (tCNV) is set by the internal clock. Once
the conversion is complete, the device starts the next
input acquisition. During this input acquisition time
(tACQ), the user can clock out the output data by providing the external SPI serial clock (SCLK).
The device provides conversion data with no missing
codes. This ADC device family has a large input
full-scale range, high precision, high throughput with
no output latency, and is an ideal choice for various
ADC applications.
Sample VIN+
SW1+
AIN+
CPIN
During input acquisition (Standby), the internal input
sampling capacitors are connected to the input signal,
while most of the internal analog circuits are shutdown
to save power. During this input acquisition time
(tACQ), the device consumes less than 1 A.
The user can operate the device with an easy-to-use
SPI-compatible 3-wire interface.
VT = 0.6V
D1
RSON
CS+
(200 )
(31 pF)
SW2+
ILEAKAGE
(~ ±1 nA)
D2
VREF
D1
AIN-
VT = 0.6V
Sample VINSW1-
CPIN
D2
RSON
CS-
(200 )
(31 pF)
SW2-
ILEAKAGE
(~ ±1 nA)
where:
CS+ , CS- = Input sample and hold capacitor ≈ 31 pF.
RSON = On-resistance of the sampling switch ≈ 200
CPIN = Package pin + ESD capacitor ≈ 2 pF.
AIN+ = Analog input.
AIN- = Ground reference of analog input.
Simplified Equivalent Analog Input Circuit.
6.1
Analog Input
Figure shows a simplified equivalent circuit of the
input architecture with a switched capacitor input stage.
The input sampling capacitor (CS+) is about 31 pF. The
back-to-back diodes (D1 - D2) at each input pin are
ESD protection diodes. Note that these ESD diodes are
tied to VREF, so that each input signal can swing from
0V to VREF.
The input sampling and hold circuit in AIN+ path is also
repeated in AIN- path. This allows the device to perform
a pseudo-differential conversion of the input signal.
Therefore, the common mode signal presented at both
input pins is rejected. In applications, AIN+ pin is for the
input signal and AIN- pin is for the ground reference of
the input signal. The user must connect the AIN- pin to
a clean ground plane of the input signal externally.
Note:
The ESD diodes at the analog input pins
are biased from VREF. Any input voltage
outside the absolute maximum range can
turn on the input ESD protection diodes
and results in input leakage current which
may cause conversion errors and
permanent damage to the device. Care
must be taken in setting the input voltage
ranges so that the input voltage does not
exceed the absolute maximum input
voltage range.
During input acquisition phase (Standby), the sampling
switches are closed and each input sees the sampling
capacitor (≈ 31 pF) in series with the on-resistance of
the sampling switch, RSON (≈ 200).
For high-precision data conversion applications, the
input voltage needs to be fully settled within 1/2 LSB
during the input acquisition period (tACQ). The settling
time is directly related to the source impedance: A
lower impedance source results in faster input settling
DS20006122A-page 30
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
6.1.1
6.2
INPUT VOLTAGE RANGE
The device has two analog input pins: AIN+ and AINpins. The analog input signal is applied to the AIN+ pin,
and the ground reference of the input signal is tied to
the AIN- pin.
The MCP33131/MCP33121/MCP33111-XX can be
driven directly when the source impedance of the input
driver is low.
Large source impedance of the input signal may affect
the ADC’s performance. In general, the source impedance is less sensitive to the ADC’s DC performances
such as INL and DNL. However, it affects significantly
to the dynamic performances such as THD, SFDR and
SNR.
The voltage difference between AIN+ and AIN- is the
ADC input (VIN) and needs to be between 0V and
+VREF to produce unsaturated output codes.
Equation 6-4 shows the input full-scale range (FSR)
and input range.
The device will output unipolar straight binary codes for
the analog input. If the input (VIN) is greater than the
reference voltage (VREF), the output code will be
saturated. If the input (VIN) is less than or equals to 0V,
the output will be all 0’s.
EQUATION 6-1:
Input Range:
where VIN =
AIN+
Therefore, it is a good design practice to isolate the
ADC input from the high impedance source using a low
noise input driver amplifier. Figure 6-1 shows an input
configuration example using a low-noise OP amplifier
such as MCP6286 and Figure 6-2 shows the transfer
function of the MCP33131/MCP33121/MCP33111-XX.
FSR AND INPUT RANGE
Input Full-Scale Range (FSR) =
Analog Input Conditioning Circuit
VREF
0V V IN VREF – 1LSB
- AIN-
VREF 2.5V to 5.1V
Voltage
Reference
VDC
MCP1501
(Note 2)
0.1 F
R1
0V
AIN+
(22 ±0.1%)
Analog Input
MCP6286
(Note 1)
0.1 F
VREF
1 1
0V
1.7V to 5.5V
10 F
(Tantalum)
fC = 2R1 C
VREF
1.8V
CR
C1
(1.7nF, NPO)
VREF AVDD DVIO
SDI
VIN
MCP331x1-XX
0V
(PIC32MZ)
SCLK
AIN-
Ground Reference of
Analog Input
Host Device
CNVST
GND
SDO
Note 1: Contact Microchip Technology Inc. for more selections of the low-noise input driver amplifiers.
2: Contact Microchip Technology Inc. for the MCP1501 application circuit.
FIGURE 6-1:
Unipolar-Input Application Example
Digital Output Code
2n - 1
2n/2
0
+VREF/2
+VREF
VIN (V)
Analog Input Voltage
VIN range
FIGURE 6-2:
Transfer Function for Figure 6-1.
2018 Microchip Technology Inc.
DS20006122A-page 31
MCP33131/MCP33121/MCP33111-XX
6.3
ADC Input Driver Selection
• ADC Input-Referred Noise:
The noise and distortion of the ADC input driver can
degrade the dynamic performance (SNR, SFDR, and
THD) of the overall ADC application system. Therefore,
the ADC input driver needs better performance specifications than the ADC itself. The data sheet of the driver
typically shows the output noise voltage and harmonic
distortion parameters.
Figure 6-3 shows a simplified system noise
presentation block diagram for the front-end driver and
ADC.
When the ADC is operating with a full-scale input
range, the ADC input-referred RMS noise for a
single-ended input configuration is approximated as
shown in Equation 6-4.
EQUATION 6-4:
ADC INPUT-REFERRED
NOISE
VN_ADC Input-Referred Noise
=
V REF
-------------- 10
2 2
SNR
– ----------20
(V)
• Noise Contribution from the Front-End Driver:
ADC Input Driver
-+
R
-+
ADC
C
VN_RMS_Driver Noise
FIGURE 6-3:
Representation.
VN_ADC Input-Referred Noise
Simplified System Noise
• Unity-Gain Bandwidth:
An input driver with higher bandwidth usually results in
better overall linearity performance. Typically, the driver
should have the unity-gain bandwidth greater than 5
times the -3 dB cutoff frequency of the anti-aliasing filter:
EQUATION 6-2:
BANDWIDTH
REQUIREMENT FOR ADC
INPUT DRIVER
BWInput Driver 5 x f
B
5
--------------2RC
(Hz)
for a single-pole RC filter
where, fB = -3 dB bandwidth of RC anti-aliasing filter as
shown in Figure 6-3.
• Distortion:
The nonlinearity characteristics of the input driver
cause distortions in the ADC output. Therefore, the
input driver should have less distortion than the ADC
itself. The recommended total harmonic distortion
(THD) of the driver is at least 10 dB less than that of the
ADC:
EQUATION 6-3:
THDInput Buffer
DS20006122A-page 32
RECOMMENDED THD
FOR ADC INPUT DRIVER
≤ THDADC -10
(dB)
The noise from the input driver can degrade the ADC’s
SNR performance. Therefore, the selected input driver
should have the lowest possible broadband noise density and 1/f noise. When an anti-aliasing filter is used
after the input driver, the output noise density of the
input driver is integrated over the -3 dB bandwidth of
the filter.
Equation 6-5 shows the RMS output noise voltage calculation using the RC filter’s bandwidth and noise density (eN) of the input driver. GN in Equation 6-5 is the
noise gain of the driver amplifier and becomes 1 for a
unity gain buffer driver.
EQUATION 6-5:
VN_RMS_Driver Noise
NOISE FROM FRONT-END
DRIVER AMPLIFIER
eN
G N ------- f B
2
(V)
where eN is the broadband noise density (V/√Hz) of the
front-end driver amplifier and is typically given in its
data sheet. In Equation 6-5, 1/f noise (eNFlicker) is
ignored assuming it is very small compared to the
broadband noise (eN).
For high precision ADC applications, the noise
contribution from the front-end input driver amplifier is
typically constrained to be less than about 20% (or 1/5
times) of the ADC input-referred noise as shown in
Equation 6-6:
EQUATION 6-6:
RECOMMENDED ADC
INPUT DRIVER NOISE
VN_RMS_Driver Noise 1--- VN_ADC Input-Referred Noise
5
Using Equation 6-4 to Equation 6-6, the recommended
noise voltage density (eN) limit of the ADC input driver
is expressed in Equation 6-7:
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
EQUATION 6-7:
eN
G N ------- f B
2
eN
NOISE DENSITY FOR ADC
INPUT DRIVER
1
1
------ -------------------------10 G
fB
N
V REF 10
SNR
– ----------20
TABLE 6-1:
RC
Filter
ADC
ADC
SNR
fB
Input-Referred
(Table 2)
(dBFS)
Noise
3 MHZ
2.5V
3.3V
5V
Note
81
83
87
1:
2:
78.8V
82.6 V
79 V
V
--------- Hz
VREF
Noise Voltage
Density (eN)
ADC
SNR
fB
Input-Referred
(Note 2)
(dBFS)
Noise
2.5V
3.3V
5V
Note
80
6.3 nV/√Hz
5.6 nV/√Hz
3 MHZ
7.6 nV/√Hz
4 MHz
6.6 nV/√Hz
5 MHZ
5.9 nV/√Hz
3 MHZ
7.3 nV/√Hz
4 MHz
6.3 nV/√Hz
5 MHZ
5.6 nV/√Hz
See Equation 6-4 for the ADC input-referred noise
calculation for single-ended input.
fB is -3dB bandwidth of the RC anti-aliasing filter.
98.2 V
118.1 V
83.5
1:
ADC
2.5V
3.3V
5V
Note
ADC
SNR
Input-Referred
(dBFS)
Noise
73.2
73.5
73.8
1:
2:
Noise Voltage
Density (eN)
3 MHZ
8.1 nV/√Hz
4 MHz
7.1 nV/√Hz
5 MHZ
6.3 nV/√Hz
3 MHZ
9.0 nV/√Hz
4 MHz
7.8 nV/√Hz
5 MHZ
7.0 nV/√Hz
3 MHZ
10.9 nV/√Hz
4 MHz
9.4 nV/√Hz
5 MHZ
8.4 nV/√Hz
Noise Voltage Density (eN) of
Input Driver for MCP33111-XX
(Note 1)
VREF
ADC Input Driver
Amplifier (GN = 1)
See Equation 6-4 for the ADC input-referred noise
calculation for single-ended input.
fB is -3dB bandwidth of the RC anti-aliasing filter.
TABLE 6-3:
7.3 nV/√Hz
5 MHZ
88.4V
81.5
2:
ADC Input Driver
Amplifier (GN = 1)
4 MHz
2018 Microchip Technology Inc.
RC
Filter
(Note 1)
Noise Voltage Density (eN) of
Input Driver for MCP33131-XX
(Note 1)
Noise Voltage Density (eN) of
Input Driver for MCP33121-XX
ADC
1
5
--- VN_ADC Input-Referred Noise
Using Equation 6-7, the recommended maximum
noise voltage density limit for unity gain input driver for
single-ended input ADC can be estimated. Table 6-1 to
Table 6-3 show a few example results with GN = 1. The
user may use these tables as a reference when
selecting the ADC input driver amplifier.
VREF
TABLE 6-2:
193.3V
246.6 V
360.9 V
RC
Filter
ADC Input Driver
Amplifier (GN = 1)
(Note 2)
fB
Noise Voltage
Density (eN)
3 MHZ
17.8 nV/√Hz
4 MHz
15.4 nV/√Hz
5 MHZ
13.8 nV/√Hz
3 MHZ
22.7 nV/√Hz
4 MHz
19.7 nV/√Hz
5 MHZ
17.6 nV/√Hz
3 MHZ
33.3 nV/√Hz
4 MHz
28.8 nV/√Hz
5 MHZ
25.8 nV/√Hz
See Equation 6-4 for the ADC input-referred noise calculation for single-ended input.
fB is -3dB bandwidth of the RC anti-aliasing filter.
DS20006122A-page 33
MCP33131/MCP33121/MCP33111-XX
6.4
Device Operation
6.4.2
The start of the conversion is controlled by CNVST. On
the rising edge of CNVST, the sampled charge is
locked (sample switches are opened) and the ADC
performs the conversion. Once a conversion is started,
it will not stop until the current conversion is complete.
The data conversion time (tCNV) is not
user-controllable. After the conversion is complete and
the host lowers CNVST, the output data is presented on
SDO.
When the MCP33131/MCP33121/MCP33111-XX is
first powered-up, it self-calibrates internal systems and
enters input acquisition mode by itself. The device
operates in two phases: (a) Input Acquisition (Standby)
and (b) Data Conversion. Figure 6-4 shows the ADC
operating sequence.
6.4.1
DATA CONVERSION PHASE
INPUT ACQUISITION PHASE
(STANDBY)
Any noise injection during the conversion phase may
affect the accuracy of the conversion. To reduce
environment noise, minimize I/O events and running
clocks during the conversion time.
During the input acquisition phase (tACQ), also called
Standby, the two input sampling capacitors, CS+ and
CS-, are connected to the AIN+ and AIN- pins,
respectively. The input voltage is sampled until a rising
edge on CNVST is detected. The input voltage should
be fully settled within 1/2 LSB during tACQ.
The output data is clocked out MSB first. While the output data is being transferred, the device enters the next
input acquisition phase.
During this input acquisition time (tACQ), the ADC
consumes less than 1 A. The acquisition time (tACQ)
is user-controllable. This acquisition time (tACQ) can be
increased as long as needed for additional power
savings.
Note:
Transferring output data during the
acquisition phase can disturb the next
input sample. It is highly recommended to
allow at least tQUIET (10 ns, typical)
between the last edge on the SPI
interface and the rising edge on CNVST.
See Figure 1-1 for tQUIET.
tCYC = 1/fS
Input Acquisition
(Standby)
Operating
Condition
IDDAN
Data Conversion
tACQ
MCP331x1-10: 300 ns (typical)
MCP331x1-05: 800 ns (typical)
tCNV
MCP331x1-10: 700 ns (typical)
MCP331x1-05: 1200 ns (typical)
Input Acquisition
(Standby)
tACQ
MCP331x1-10: 300 ns (typical)
MCP331x1-05: 800 ns (typical)
(a) ADC acquires input sample #1. (a) Conversion is initiated at the rising edge of CNVST. (a) At the falling edge of CNVST,
ADC output is available at SDO.
(b) No ADC output is available yet. (b) All circuits are turned-on.
(b) ADC output can be clocked out
(c) Most analog circuits are
(c) ADC output is not available yet.
by providing clocks.
turned off.
(c) ADC acquires input sample #2.
MCP331x1-10: ~ 1.6 mA
(d) Most analog circuits are turned off.
MCP331x1-05: ~ 1.4 mA
I
Off
~ 0.8 A
(a) Device is first powered-up and
(b) Performs a power-up self-calibration.
Output Data
SDO
FIGURE 6-4:
DS20006122A-page 34
Device Operating Sequence.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
6.4.3
SAMPLE (THROUGHPUT) RATE
EQUATION 6-9:
The device completes data conversion within the
maximum specification of the data conversion time
(tCNV). The continuous input sample rate is the inverse
of the sum of input acquisition time (tACQ) and data
conversion time (tCNV). Equation 6-8 shows the
continuous sample rate calculation using the minimum
and maximum specifications of the input acquisition
time (tACQ) and data conversion time (tCNV).
EQUATION 6-8:
tACQ = N T SCLK + t QUIET + t EN
1
N
f SCLK = --------------- = -----------------------------------------------------T SCLK
tACQ – t QUIET + tEN
where N is the number of output data bits, given by
N
SAMPLE RATE
1
Sample Rate = --------------------------------- t ACQ + tCNV
(a) MCP331x1-10:
1
Sample Rate = ----------------------------------------- = 1 Msps
290ns + 710ns
TABLE 6-4:
Input
Acquisition Time:
tACQ (nS)
(Note 4)
14-bit for MCP33121-XX
12-bit for MCP33111-XX
=
Period of SPI clock
N x TSCLK
=
Output data window
tQUIET
=
Quiet time between the last output bit
and beginning of the next
conversion start.
=
10 ns (min)
=
Output enable time = 10 ns (max), with
DVIO ≥2.3V
tEN
Note:
See Figure 1-1 for digital interface timing diagram.
where fSCLK is the minimum SPI serial clock frequency
required to transfer all N-bits of output data during input
acquisition time (tACQ).
Table 6-4 and Table 6-5 show the examples of calculated minimum SPI clock (fSCLK) requirements for various input acquisition times for 1 Msps and 500 kSPS
family devices, respectively.
SPI CLOCK SPEED VS. INPUT ACQUISITION TIME (TACQ) FOR MCP331X1-10
Data
Conversion Time:
tCNV (nS)
(Note 5)
SPI Clock (fSCLK) Speed Requirement
(Note 1), (Note 2)
Sample Rate:
fS (Msps)
MCP33131-10
(16-bit)
MCP33121-10
(14-bit)
MCP33111-10
(12-bit)
250
69.57 MHz
60.87 MHz
52.17 MHz
1
270
64 MHz
56 MHz
48 MHz
0.98
0.97
750
280
61.54 MHz
53.85 MHz
46.15 MHz
290
59.26 MHz
51.85 MHz
44.44 MHz
1
300
57.15 MHz
50 MHz
42.86 MHz
0.99
320
53.33 MHz
46.67 MHz
40 MHz
0.97
400
42.11 MHz
36.84 MHz
30 MHz
0.9
540
30.77 MHz
26.92 MHz
23.08 MHz
0.8
22.86 MHz
20 MHz
17.14 MHz
0.7
720
17.2 MHz
15.05 MHz
12.9 MHz
0.6
1290
12.6 MHz
11.02 MHz
9.45 MHz
0.5
1750
9.04 MHz
7.91 MHz
6.78 MHz
0.4
2620
6.15 MHz
5.39 MHz
4.62 MHz
0.3
4290
3.75 MHz
3.28 MHz
2.81 MHz
0.2
9290
1.73 MHz
1.51 MHz
1.3 MHz
0.1
720
Note
16-bit for MCP33131-XX
=
=
SERIAL SPI CLOCK FREQUENCY
REQUIREMENT
The ADC output is collected during the input acquisition
time (tACQ). For continuous input sampling and data
conversion sequence, the SPI clock frequency should
be fast enough to clock out all output data bits during
the input acquisition time (tACQ). For the continuous
sampling rate (fS), the minimum SPI clock frequency
requirement is determined by the following equation:
=
TSCLK
(b) MCP331x1-05:
1
Sample Rate = -------------------------------------------- = 500 kSPS
700ns + 1300ns
6.4.4
SPI CLOCK FREQUENCY
REQUIREMENT
1:
2:
3:
4:
5:
710
Conditions
85°C < TA ≤ 125°C
(Note 3)
-40°C ≤ TA ≤ 85°C
This is the minimum SPI clock speed requirement to collect all N-bits of the ADC output during the input acquisition time (tACQ), when the
ADC is operating in continuous input sampling mode.
See Equation 6-9 for the calculation of the SPI clock speed requirement.
In extended temperature range, the device takes longer data conversion time (tCNV: 750 nS, max). Using a shorter input acquisition time
is recommended (tACQ: 250 nS) for 1 Msps throughput rate.
Input acquisition time (tACQ) is user-controllable.
Data conversion time (tCNV) is not user-controllable.
2018 Microchip Technology Inc.
DS20006122A-page 35
MCP33131/MCP33121/MCP33111-XX
TABLE 6-5:
SPI CLOCK SPEED VS. INPUT ACQUISITION TIME (TACQ) FOR MCP331X1-05
Input
Acquisition Time:
tACQ (nS)
(Note 3)
Data
Conversion Time:
tCNV (nS)
(Note 4)
(Note 1), (Note 2)
MCP33131-05
(16-bit)
MCP33121-05
(14-bit)
MCP33111-05
(12-bit)
Sample Rate:
fS (kSPS)
700
23.53MHz
20.59 MHz
17.65 MHz
500
740
22.22 MHz
19.44 MHz
16.67 MHz
490
790
20.78 MHz
18.18 MHz
15.58 MHz
480
17.58 MHz
15.39 MHz
13.19 MHz
450
13.56 MHz
11.86 MHz
10.17 MHz
400
1560
10.39 MHz
9.09 MHz
7.79 MHz
350
2030
7.96 MHz
6.97 MHz
5.97 MHz
300
2700
5.97 MHz
5.22MHz
4.48 MHz
250
3700
4.35 MHz
3.8 MHz
3.26 MHz
200
5370
2.99 MHz
2.62 MHz
2.25 MHz
150
8700
1.84 MHz
1.61 MHz
1.38 MHz
100
930
1300
1200
Note
SPI Clock (fSCLK) Speed Requirement
1:
-40°C ≤ TA ≤ 125°C
This is the minimum SPI clock speed requirement to collect all N-bits of the ADC output during the input acquisition time (tACQ), when the
ADC is operating in continuous input sampling mode.
See Equation 6-9 for the calculation of the SPI clock speed requirement.
Input acquisition time (tACQ) is user-controllable.
Data conversion time (tCNV) is not user-controllable.
2:
3:
4:
6.5
Conditions
Transfer Function
311.3 V
1.2451 mV
Figure 6-5 shows the ideal transfer function and
Table 6-7 shows the digital output codes for the
MCP33131/MCP33121/MCP33111-XX.
The pseudo-differential analog input is:
VIN = (VIN+) - (VIN-)
where VIN+ is the analog input voltage at AIN+ pin with
respect to the ground reference (GND), and Vin- is the
voltage at AIN- pin, which is 0V when tied to the analog
input ground reference (GND).
The LSB size is given by Equation 6-10. and an
example of LSB size vs. reference voltage is
summarized in Table 6-6.
EQUATION 6-10:
77.8 V
5.1
LSB SIZE - EXAMPLE
Digital Output Code (Unipolar Straight Binary)
111 ...111
111 ...110
100 ...000
V REF
LSB = -----------N
2
where N is the resolution of the ADC in bits.
000 ...001
TABLE 6-6:
Reference
Voltage
(VREF)
LSB SIZE VS. REFERENCE
LSB Size
0V
MCP33131-XX
(16-bit)
MCP33121-XX
(14-bit)
MCP33111-XX
(12-bit)
2.5V
38.2V
152.6 V
0.6104 mV
2.7V
41.2 V
164.8 V
0.6592 mV
3V
45.8 V
183.1 V
0.7324 mV
3.3V
50.4 V
201.4 V
0.8057 mV
3.5V
53.4 V
213.6 V
0.8545 mV
4V
61.0 V
244.1 V
0.9766 mV
4.5V
68.7 V
274.7 V
1.0986 mV
5V
76.3 V
305.2 V
1.2207 mV
DS20006122A-page 36
000 ...000
0V+ 1 LSB
VREF
2
VREF - 1.5 LSB
VREF - 1 LSB
0V + 0.5 LSB
Analog Input Voltage
FIGURE 6-5:
Ideal Transfer Function.
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
6.6
Digital Output Code
The digital output code is proportional to the input
voltage. The output data is in unipolar straight binary
format. The following is an example of the output code:
(a) for a zero or negative input:
Analog Input: VIN ≤ 0 (V)
Output Code: 0000...0000
(b) for a mid-scale input:
Analog Input: VIN = +VREF /2 (V)
Output Code: 1000...0000
(c) for a positive full-scale input:
Analog Input: VIN = +VREF (V)
Output Code: 1111...1111
The code will be locked at 1111...11 for all voltages
greater than (VREF - 1 LSB) and 0000...00 for
voltages less than 0V. Table 6-7 shows an example of
output codes of various input levels.
TABLE 6-7:
DIGITAL OUTPUT CODE
Digital Output Codes
Input Voltage (V)
MCP33131-XX
(16-bit)
MCP33121-XX
(14-bit)
MCP33111-XX
(12-bit)
VREF
1111-1111-1111-1111
11-1111-1111-1111
1111-1111-1111
VREF - 1 LSB
1111-1111-1111-1111
11-1111-1111-1111
1111-1111-1111
.
.
.
.
.
.
.
.
VREF/2
1000-0000-0000-0000
10-0000-0000-0000
1000-0000-0000
.
.
.
.
.
.
.
.
2 LSB
0000-0000-0000-0010
00-0000-0000-0010
0000-0000-0010
1 LSB
0000-0000-0000-0001
00-0000-0000-0001
0000-0000-0001
≤ 0V
0000-0000-0000-0000
00-0000-0000-0000
0000-0000-0000
2018 Microchip Technology Inc.
DS20006122A-page 37
MCP33131/MCP33121/MCP33111-XX
7.0
DIGITAL SERIAL INTERFACE
SDO returns to high-Z state after the last data bit is
clocked out or when CNVST goes high, whichever
occurs first.
The device has a SPI-compatible serial digital
interface using four digital pins: CNVST, SDI, SDO and
SCLK.
Figure 7-1 shows the connection diagram with the host
device and Figure 7-2 shows the SPI-compatible serial
interface timing diagram.
CS
DVIO
DVIO
The SDI pin can be tied to the digital I/O interface
supply voltage (DVIO) or just maintain logic “High” level
by the host. The CNVST pin is used for both chip select
(CS) and conversion-start control.
CNVST
SDI
SDO
SCLK
A rising edge on CNVST initiates the conversion
process. Once the conversion is initiated, the device
will complete the conversion regardless of the state of
CNVST. This means the CNVST pin can be used for
other purposes during tCNV.
SDI
10 k
(Note 1)
SCLK
(b) Host Device (Master)
(a) MCP33131/21/11-XX
Note 1: Adding this pull-up is needed when monitoring
status of Recalibrate.
When the conversion is complete, the output is
available at SDO by lowering CNVST. Data is sent
MSB-first and changes on the falling edge of SCLK.
FIGURE 7-1:
Diagram.
Output data can be sampled on either edge of SCLK.
However, a digital host capturing data on the falling
edge of SCLK can achieve a faster read out rate.
Digital Interface Connection
tCYC = 1/fS
SDI = DVIO
(Note 1)
tCNVH
(a) Exit input acquisition mode and
(b) Enter new conversion mode
tSU_SDIH_CNV
CNVST
tSCLK
(Note 2)
1
SCLK
2
(Note 5)
3
4
tDO
14
tSCLK_L
15
tSCLK_H
16
tQUIET
tDIS
Hi-Z
SDO
tCNV (MAX)
D14
D13
D12
D2
D1
D0
Hi-Z
tEN
(Note 3)
tEN
(Note 4)
ADC State
Input Acquisition
(tACQ)
D15
(MSB)
Conversion
(tCNV)
Input Acquisition
(tACQ)
Note 1: SDI must maintain “High” during the entire tCYC.
2: Any SCLK toggling events (dummy clocks) before CNVST is changed to “Low” are ignored.
3: tEN when CNVST is lowered after tCNV (Max).
4: tEN when CNVST is lowered before tCNV (Max).
5: Recommended data detection: Detect SDO on the falling edge of SCLK.
FIGURE 7-2:
DS20006122A-page 38
SPI Compatible Serial Interface Timing Diagram (16-bit device).
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
7.1
Recalibrate Command
A self-calibration is initiated by sending the recalibrate
command. The host device sends a recalibrate
command by transmitting 1024 SCLK pulses (including
the clocks for data bits) while the device is in the
acquisition phase (Standby).
The user may use the recalibrate command in the
following cases:
• When the reference voltage was not fully settled
during the first-power sequence.
• During operation, to ensure optimum performance
across varying environment conditions, such as
reference voltage and temperature.
The device drives SDO low during the recalibration
procedure, and returns to high-Z once completed. The
status of the recalibration procedure can be monitored
by placing a pull-up on SDO, so that SDO goes high
when the recalibration is complete.
Figure 7-3 shows the recalibrate command timing
diagram. The calibration takes approximately 500 ms
(tCAL).
(Note 1)
SDI = DVIO
Start recalibration
Finish recalibration
Complete data reading
Device Recalibration
CNVST
1024 clocks
(SPITM Recalibrate command)
2
1
3
1024
15 16
SCLK
tCAL
(Note 2)
“High” with Pull-up
SDO
“High” with Pull-up
“Low”
ADC Output Data Stream
Hi-Z
Hi-Z
Hi-Z
(Note 3)
ADC State
(Note 4)
tCNV
Note 1: SDI must remain “High” during the entire recalibration cycle.
2: The 1024 clocks include the clocks for data bits.
3: SDO outputs “Low” during calibration, and Hi-Z when exiting the calibration.
4: After finishing the recalibration procedure, the device is ready for a new input sampling immediately.
FIGURE 7-3:
Note:
Recalibrate Command Timing Diagram.
When the device performs a self-calibration, it is important to note that both AVDD and the reference
voltage (VREF) must be stabilized for a correct calibration. This is also true when the device is first
powered-up, the reference voltage (VREF) must be stabilized before self-calibration begins. This means
the VREF must be provided prior to supplying AVDD or within about 64 ms after supplying AVDD.
2018 Microchip Technology Inc.
DS20006122A-page 39
MCP33131/MCP33121/MCP33111-XX
NOTES:
DS20006122A-page 40
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
8.0
TERMINOLOGY
Analog Input Bandwidth (Full-Power
Bandwidth)
The analog input frequency at which the spectral power
of the fundamental frequency (as determined by FFT
analysis) is reduced by 3 dB.
Aperture Delay or Sampling Delay
This is the time delay between the rising edge of the
CNVST input and when the input signal is held for a
conversion.
Differential Nonlinearity
(DNL, No Missing Codes)
An ideal ADC exhibits code transitions that are exactly
1 LSB apart. DNL is the deviation from this ideal value.
No missing codes to 16-bit resolution indicates that all
65,536 codes (16,384 codes for 14-bit, 4096 codes for
12-bit) must be present over all the operating
conditions.
EQUATION 8-2:
PS
SINAD = 10 log ----------------------
PD + P N
= – 10 log 10
SNR
– ----------10
– 10
THD
– -----------10
SINAD is either given in units of dBc (dB to carrier),
when the absolute power of the fundamental is used as
the reference, or dBFS (dB to full-scale), when the
power of the fundamental is extrapolated to the
converter full-scale range.
Effective Number of Bits (ENOB)
The effective number of bits for a sine wave input at a
given input frequency can be calculated directly from its
measured SINAD using the following formula:
EQUATION 8-3:
SINAD – 1.76
ENOB = ---------------------------------6.02
Integral Nonlinearity (INL)
Gain Error
INL is the maximum deviation of each individual code
from an ideal straight line drawn from negative full
scale through positive full scale.
Gain error is the deviation of the ADC’s actual input
full-scale range from its ideal value. The gain error is
given as a percentage of the ideal input full-scale
range. Gain error is usually expressed in LSB or as a
percentage of full-scale range (%FSR).
Signal-to-Noise Ratio (SNR)
SNR is the ratio of the power of the fundamental (PS) to
the noise floor power (PN), below the Nyquist frequency
and excluding the power at DC and the first nine
harmonics.
EQUATION 8-1:
PS
SNR = 10 log -------
PN
SNR is either given in units of dBc (dB to carrier), when
the absolute power of the fundamental is used as the
reference, or dBFS (dB to full-scale), when the power
of the fundamental is extrapolated to the converter
full-scale range.
Signal-to-Noise and Distortion (SINAD)
SINAD is the ratio of the power of the fundamental (PS)
to the power of all the other spectral components
including noise (PN) and distortion (PD) below the
Nyquist frequency, but excluding DC:
2018 Microchip Technology Inc.
Offset Error
Offset error is the difference between the ideal voltage
(0V + 0.5 LSB) that produces the first code transition
(“000... 000” to “000... 001”) and the actual voltage producing that code.
Temperature Drift
The temperature drift for offset error and gain error
specifies the maximum change from the initial (+25°C)
value to the value at across the TMIN to TMAX range.
The value is normalized by the reference voltage and
expressed in V/oC or ppm/oC.
Maximum Conversion Rate
The maximum clock rate at which parametric testing is
performed.
Spurious-Free Dynamic Range (SFDR)
SFDR is the ratio of the power of the fundamental to the
highest other spectral component (either spur or
harmonic). SFDR is typically given in units of dBc (dB
to carrier) or dBFS.
DS20006122A-page 41
MCP33131/MCP33121/MCP33111-XX
Total Harmonic Distortion (THD)
THD is the ratio of the power of the fundamental (PS) to
the summed power of the first 13 harmonics (PD).
EQUATION 8-4:
PS
THD = 10 log --------
PD
THD is typically given in units of dBc (dB to carrier).
THD is also shown by:
EQUATION 8-5:
2
2
2
2
V2 + V 3 + V 4 + + V n
THD = – 20 log -----------------------------------------------------------------2
V1
Where:
V1 = RMS amplitude of the
fundamental frequency
V1 through Vn = Amplitudes of the second
through nth harmonics
Common-Mode Rejection Ratio (CMRR)
Common-mode rejection is the ability of a device to
reject a signal that is common to both sides of a
differential or pseudo-differential input pair. The
common-mode signal can be an AC or DC signal or a
combination of the two. CMRR is measured using the
ratio of the differential signal gain to the common-mode
signal gain and expressed in dB with the following
equation:
EQUATION 8-6:
Where:
A DIFF
CMRR = 20 log ------------------
ACM
ADIFF = Output Code/Differential Voltage
ADIFF = Output Code/Common-Mode Voltage
DS20006122A-page 42
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
9.0
PACKAGING INFORMATION
9.1
Package Marking Information
Example
10-Lead MSOP (3x3 mm)
Corresponding Part Number:
31-10
= MCP33131-10
31-05
= MCP33131-05
21-10
= MCP33121-10
21-05
= MCP33121-05
11-10
= MCP33111-10
11-05
= MCP33111-05
10-Lead TDFN (3x3x0.9 mm)
31-10
839256
Example
Corresponding Part Number:
XXXX
YYWW
NNN
PIN 1
= MCP33131-10
= MCP33131-05
211
= MCP33121-10
210
= MCP33121-05
111
= MCP33111-10
110
= MCP33111-05
311
1839
256
PIN 1
Legend: XX...X
Y
YY
WW
NNN
e3
*
Note:
311
310
Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC® designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
2018 Microchip Technology Inc.
DS20006122A-page 43
MCP33131/MCP33121/MCP33111-XX
10-Lead Plastic Micro Small Outline Package (MS) [MSOP]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
0.20 H
D
D
2
A
N
E
2
E1
2
E1
E
0.20 H
1
0.25 C
2
e
B
8X b
0.13
C A B
TOP VIEW
H
C
SEATING
PLANE
A2
A
8X
A1
0.10 C
SEE DETAIL A
SIDE VIEW
END VIEW
Microchip Technology Drawing C04-021D Sheet 1 of 2
DS20006122A-page 44
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
10-Lead Plastic Micro Small Outline Package (MS) [MSOP]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
4X Ĭ1
c
C
SEATING
PLANE
L
Ĭ
(L1)
4X Ĭ1
DETAIL A
Units
Dimension Limits
Number of Pins
N
e
Pitch
Overall Height
A
Molded Package Thickness
A2
Standoff
A1
Overall Width
E
Molded Package Width
E1
Overall Length
D
Foot Length
L
Footprint
L1
Mold Draft Angle
Ĭ
Foot Angle
Ĭ1
c
Lead Thickness
b
Lead Width
MIN
0.75
0.00
0.40
0°
5°
0.08
0.15
MILLIMETERS
NOM
10
0.50 BSC
0.85
4.90 BSC
3.00 BSC
3.00 BSC
0.60
0.95 REF
-
MAX
1.10
0.95
0.15
0.80
8°
15°
0.23
0.33
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or
protrusions shall not exceed 0.15mm per side.
3. Dimensioning and tolerancing per ASME Y14.5M.
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-021D Sheet 2 of 2
2018 Microchip Technology Inc.
DS20006122A-page 45
MCP33131/MCP33121/MCP33111-XX
10-Lead Plastic Micro Small Outline Package (MS) [MSOP]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
G
SILK SCREEN
Z
C
G1
Y1
X1
E
RECOMMENDED LAND PATTERN
Units
Dimension Limits
E
Contact Pitch
Contact Pad Spacing
C
Overall Width
Z
Contact Pad Width (X10)
X1
Contact Pad Length (X10)
Y1
Distance Between Pads (X5)
G1
Distance Between Pads (X8)
G
MIN
MILLIMETERS
NOM
0.50 BSC
4.40
MAX
5.80
0.30
1.40
3.00
0.20
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Microchip Technology Drawing No. C04-2021B
DS20006122A-page 46
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2018 Microchip Technology Inc.
DS20006122A-page 47
MCP33131/MCP33121/MCP33111-XX
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
DS20006122A-page 48
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
APPENDIX A:
REVISION HISTORY
Revision A (November 2018)
• Original release of this document.
2018 Microchip Technology Inc.
DS20006122A-page 49
MCP33131/MCP33121/MCP33111-XX
NOTES:
2018 Microchip Technology Inc.
DS20006122A-page 50
MCP33131/MCP33121/MCP33111-XX
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
─XX
PART NO.
X
Device
Input Type
Device:
Input Type
X
Sample Rate Tape
and
Reel
─X
/XX
Temperature Package
Range
MCP33131-10:
1 Msps 16-Bit Single-Ended Input SAR ADC
MCP33121-10:
MCP33111-10:
1 Msps 14-Bit Single-Ended Input SAR ADC
1 Msps 12-Bit Single-Ended Input SAR ADC
MCP33131-05:
500 kSPS 16-Bit Single-Ended Input SAR ADC
MCP33121-05:
500 kSPS 14-Bit Single-Ended Input SAR ADC
MCP33111-05:
500 kSPS 12-Bit Single-Ended Input SAR ADC
Blank
Examples:
a)
MCP33131-10-I/MS:
b)
MCP33131-10T-I/MS:
c)
MCP33131-10-I/MN:
d)
MCP33131-10T-I/MN:
e)
MCP33121-10-I/MS:
1 Msps, 10LD MSOP,
14-bit device
f)
MCP33121-10T-I/MS:
1 Msps, 10LD MSOP,
Tape and Reel,
14-bit device
g)
MCP33121-10-I/MN:
1 Msps, 10LD TDFN,
14-bit device
= Single-Ended Input
1 Msps, 10LD MSOP,
16-bit device
1 Msps, 10LD MSOP,
Tape and Reel,
16-bit device
1 Msps, 10LD TDFN,
16-bit device
1 Msps, 10LD TDFN,
Tape and Reel,
16-bit device
Sample Rate:
10
05
= 1 Msps
= 500 kSPS
h)
MCP33121-10T-I/MN:
1 Msps, 10LD TDFN,
Tape and Reel,
14-bit device
Tape and
Reel Option:
Blank
T
= Standard packaging (tube or tray)
= Tape and Reel
i)
MCP33111-10-I/MS:
1 Msps, 10LD MSOP,
12-bit device
Temperature
Range:
E
I
= -40C to +125C (Extended)
= -40C to +85C (Industrial)
j)
MCP33111-10T-I/MS:
1 Msps, 10LD MSOP,
Tape and Reel,
12-bit device
k)
MCP33111-10-I/MN:
Package:
MS
MN
=
=
1 Msps, 10LD TDFN,
12-bit device
l)
MCP33111-10T-I/MN:
m)
MCP33131-05-I/MS:
1 Msps, 10LD TDFN,
Tape and Reel,
12-bit device
500 kSPS, 10LD MSOP,
16-bit device
n)
MCP33131-05T-I/MS:
o)
MCP33131-05-I/MN:
p)
MCP33131-05T-I/MN:
q)
MCP33121-05-I/MS:
r)
MCP33121-05T-I/MS:
500 kSPS, 10LD MSOP,
Tape and Reel,
14-bit device
s)
MCP33121-05-I/MN:
500 kSPS, 10LD TDFN,
14-bit device
t)
MCP33121-05T-I/MN:
500 kSPS, 10LD TDFN,
Tape and Reel,
14-bit device
u)
MCP33111-05-I/MS:
500 kSPS, 10LD MSOP,
12-bit device
v)
MCP33111-05T-I/MS:
500 kSPS, 10LD MSOP,
Tape and Reel,
12-bit device
w)
MCP33111-05-I/MN:
500 kSPS, 10LD TDFN,
12-bit device
x)
MCP33111-05T-I/MN:
500 kSPS, 10LD TDFN,
Tape and Reel,
12-bit device
Note 1:
Plastic Micro Small Outline Package (MSOP), 10-Lead
Thin Plastic Dual Flat No Lead Package (TDFN),
10-Lead
Tape and Reel identifier appears only in the catalog part number
description. This identifier is used for ordering purposes and is not
printed on the device package. Check with your Microchip Sales Office
for package availability with the Tape and Reel option.
DS20006122A-page 51
500 kSPS, 10LD MSOP,
Tape and Reel,
16-bit device
500 kSPS, 10LD TDFN,
16-bit device
500 kSPS, 10LD TDFN,
Tape and Reel,
16-bit device
500 kSPS, 10LD MSOP,
14-bit device
2018 Microchip Technology Inc.
MCP33131/MCP33121/MCP33111-XX
NOTES:
2018 Microchip Technology Inc.
DS20006122A-page 52
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights unless otherwise stated.
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
Trademarks
The Microchip name and logo, the Microchip logo, AnyRate, AVR,
AVR logo, AVR Freaks, BeaconThings, BitCloud, chipKIT, chipKIT
logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR,
Heldo, JukeBlox, KEELOQ, KEELOQ logo, Kleer, LANCheck, LINK
MD, maXStylus, maXTouch, MediaLB, megaAVR, MOST, MOST
logo, MPLAB, OptoLyzer, PIC, picoPower, PICSTART, PIC32
logo, Prochip Designer, QTouch, RightTouch, SAM-BA, SpyNIC,
SST, SST Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are
registered trademarks of Microchip Technology Incorporated in
the U.S.A. and other countries.
ClockWorks, The Embedded Control Solutions Company,
EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS,
mTouch, Precision Edge, and Quiet-Wire are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard,
CryptoAuthentication, CryptoCompanion, CryptoController,
dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM,
ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, InterChip Connectivity, JitterBlocker, KleerNet, KleerNet logo, Mindi,
MiWi, motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB,
MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation,
PICDEM, PICDEM.net, PICkit, PICtail, PureSilicon, QMatrix,
RightTouch logo, REAL ICE, Ripple Blocker, SAM-ICE, Serial
Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II,
Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan,
WiperLock, Wireless DNA, and ZENA are trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
Silicon Storage Technology is a registered trademark of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology
Germany II GmbH & Co. KG, a subsidiary of Microchip Technology
Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2018, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 978-1-5224-3911-0
== ISO/TS 16949 ==
2018 Microchip Technology Inc.
DS20006122A-page 53
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
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Tel: 61-2-9868-6733
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DS20006122A-page 54
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Fax: 44-118-921-5820
2018 Microchip Technology Inc.
10/25/17