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MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
General Description
The MAX6070/MAX6071 offer a very low noise and
low-drift voltage reference in a small 6-pin SOT23 package.
These devices provide a 1/f noise voltage of only
4.8µVP-P at an output voltage of 2.5V, with a temperature
drift of 6ppm/°C (max, A grade). The devices consume
150μA of supply current and can sink and source up to
10mA of load current. The low-drift and low-noise specifications enable enhanced system accuracy, making these
devices ideal for high-precision industrial applications.
The MAX6070 offers a noise filter option for wideband
applications.
The devices are available in a 6-pin SOT23 package and
are specified over the extended industrial temperature
range of ‑40°C to +125°C. The 2.5V options are also
available in a 6-bump 0.78mm x 1.41mm wafer-level
package (WLP).
●● 6-Pin SOT23 Package Reduces System Board Space
●● Stable Performance over Temperature and Time
Improves System Accuracy
• High ±0.04% Initial Accuracy
• Low 1.5ppm/°C (typ), 6ppm/°C (max, A grade)
Temperature Drift
• Low 4.8μVP-P Noise (0.1Hz to 10Hz) at 2.5V
• Low 200mV Dropout Voltage
• High 85dB Ripple Rejection
●● Low 150μA Supply Current Reduces Power
Consumption
●● Filter Option Lowers High-Frequency Noise
●● Output Options: 1.25V, 1.8V, 2.048V, 2.5V, 3.0V,
3.3V, 4.096V, and 5.0V Cover Common Voltage
Levels for a Wide Variety of Applications
●● 0.78mm x 1.41mm WLP with 0.35mm Bump Spacing
Applications
●●
●●
●●
●●
●●
Benefits and Features
●● AEC-Q100 Qualified (Refer to Ordering Information)
High-Accuracy Industrial and Process Control
Precision Instrumentation
High-Resolution ADCs and DACs
Precision Current Sources
Automotive
Ordering Information and Selector Guide appear at end of
data sheet.
Typical Operating Circuits
MAX6070
IN
VIN
OUTS
0.1µF
0.1µF
SHUTDOWN
CONTROL
BANDGAP
VOLTAGE
REFERENCE
VOUT
OUTF
BANDGAP
VOLTAGE
REFERENCE
0.1µF
RL
EN
SHUTDOWN
CONTROL
GND
19-6355; Rev 18; 12/20
OUTS
0.1µF
OUTF
FILTER
MAX6071
IN
VIN
0.1µF
RL
EN
GNDS
VOUT
GNDF
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Absolute Maximum Ratings
OUTF to GNDS, GNDF, GND..................... -0.3V to the lower of
(VIN + 0.3V), +6V
OUTS to GNDS, GNDF, GND..................................-0.3V to +6V
IN to GNDS, GNDF, GND........................................-0.3V to +6V
EN to GNDS, GNDF, GND.......................................-0.3V to +6V
FILTER to GND........................................... -0.3V to the lower of
(VIN + 0.3V), +6V
GNDS to GNDF.....................................................-0.3V to +0.3V
Continuous Power Dissipation (TA = +70°C)
SOT23 (derate 4.3mW/NC above +70°C)................ 347.8mW
WLP (derate 10.2mW/NC above 70°C.........................816mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Soldering Temperature (reflow)........................................+260°C
Lead Temperature (soldering, 10s).................................. +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Package Information
6 SOT23
PACKAGE CODE
U6+5/U6+5A
Outline Number
21-0058
Land Pattern Number
90-0175
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
230°C/W
Junction to Case (θJC)
76°C/W
6 Thin WLP
PACKAGE CODE
N60B1+1
Outline Number
21-0744
Land Pattern Number
Refer to Application Note 1891
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
98°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
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Maxim Integrated │ 2
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT12 (VOUT = 1.250V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature
Drift (Note 2)
TCVOUT
-0.04
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070D, TA = +25°C
-0.2
+0.2
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
13
100
MAX6070D
Over specified VIN
range
Line Regulation
Load Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
20
TA = +25°C
TA = TMIN to TMAX
125
0mA < IOUT < 10mA, sink
70
150
0mA < IOUT < 10mA, source
100
150
IOUT
-10
+10
%
ppm/
°C
µV/V
µV/mA
mA
Sourcing to ground
25
Sinking from VIN
25
Long-Term Stability
1000 hours at TA = +25°C
35
ppm
Thermal Hysteresis
(Note 4)
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
3.6
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF
5.0
MAX6070 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF, CFILTER = 0.1µF
2.5
Frequency = 60Hz
100
dB
MAX6070,
CFILTER = 0.1µF
6
ms
MAX6071
20
µs
MAX6070,
CFILTER = 0.1µF
6
ms
Short-Circuit Current
ISC
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
tEN
Capacitive-Load Stability Range
Settling to 0.01%,
COUT = 0.1µF
Settling to 0.01%,
COUT = 0.1µF
MAX6071
µVRMS
60
IOUT ≤ 10mA
0.1
Guaranteed by line regulation
2.7
µs
10
µF
5.5
V
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
TA = +25°C
130
TA = TMIN to TMAX
200
260
µA
6
µA
+1
µA
ENABLE
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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-1
0.7 x VIN
0.3 x VIN
V
Maxim Integrated │ 3
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT18 (VOUT = 1.800V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature
Drift (Note 2)
TCVOUT
-0.04
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
35
150
Over specified VIN
range
Line Regulation
Load Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
TA = +25°C
TA = TMIN to TMAX
200
0mA < IOUT < 10mA, sink
120
200
0mA < IOUT < 10mA, source
120
200
IOUT
-10
+10
%
ppm/°C
µV/V
µV/mA
mA
Sourcing to ground
25
Sinking from VIN
25
Long-Term Stability
1000 hours at TA = +25°C
35
ppm
Thermal Hysteresis
(Note 4)
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
6
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz
COUT = 0.1µF
7
MAX6070 thermal noise, 10Hz to 10kHz
COUT = 0.1µF, CFILTER = 0.1µF
5
Frequency = 60Hz
Short-Circuit Current
ISC
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
tEN
Capacitive-Load Stability
Range
Settling to 0.01%
COUT = 0.1µF
Settling to 0.01%
COUT = 0.1µF
µVRMS
89
dB
MAX6070
CFILTER = 0.1µF
6
ms
MAX6071
32
µs
MAX6070
CFILTER = 0.1µF
6
ms
MAX6071
60
µs
IOUT ≤ 10mA
0.1
Guaranteed by line regulation
2.7
10
µF
5.5
V
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
TA = +25°C
130
TA = TMIN to TMAX
200
260
µA
6
µA
1
µA
ENABLE
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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0.7 x VIN
0.3 x VIN
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Maxim Integrated │ 4
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT21 (VOUT = 2.048V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature
Drift (Note 2)
TCVOUT
Load Regulation
Short-Circuit Current
-0.04
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
50
180
Over specified VIN
range
Line Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
TA = +25°C
TA = TMIN to TMAX
0mA < IOUT < 10mA, sink
135
225
0mA < IOUT < 10mA, source
135
225
IOUT
ISC
Long-Term Stability
Thermal Hysteresis
225
-10
+10
%
ppm/°C
µV/V
µV/mA
mA
Sourcing to ground
25
Sinking from VIN
25
1000 hours at TA = +25°C
(Note 4)
35
ppm
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
6.4
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz
COUT = 0.1µF
8.6
MAX6070 thermal noise, 10Hz to 10kHz
COUT = 0.1µF, CFILTER = 0.1µF
6.3
Frequency = 60Hz
86
dB
MAX6070
CFILTER = 0.1µF
6.2
ms
MAX6071
25
µs
MAX6070
CFILTER = 0.1µF
6.2
ms
MAX6071
65
µs
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
tEN
Capacitive-Load Stability
Range
Settling to 0.01%
COUT = 0.1µF
Settling to 0.01%
COUT = 0.1µF
µVRMS
IOUT ≤ 10mA
0.1
10
µF
Guaranteed by line regulation
2.7
5.5
V
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
TA = +25°C
130
200
TA = TMIN to TMAX
260
µA
6
µA
+1
µA
ENABLE
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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-1
0.7 x VIN
0.3 x VIN
V
Maxim Integrated │ 5
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT25 (VOUT = 2.500V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature Drift
(Note 2)
TCVOUT
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070D, TA = +25°C
-0.2
+0.2
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
60
145
Over specified VIN
range
Load Regulation
Dropout Voltage
Short-Circuit Current
-0.04
MAX6070D
Line Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
Long-Term Stability
Thermal Hysteresis
ppm/°C
20
TA = +25°C
TA = TMIN to TMAX
175
µV/V
0mA < IOUT < 10mA, sink
80
140
0mA < IOUT < 10mA, source
75
125
IOUT = 10mA, TA = TMIN to TMAX
(Note 3)
110
230
mV
+10
mA
IOUT
ISC
%
-10
µV/mA
Sourcing to ground
25
Sinking from VIN
25
1000 hours at TA = +25°C
(Note 4)
40
ppm
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
4.8
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF
6
MAX6070 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF, CFILTER = 0.1µF
3
MAX6071 thermal noise, f = 1kHz,
COUT = 0.1µF
60
MAX6070 thermal noise, f = 1kHz,
COUT = 0.1µF, CFILTER = 0.1µF
30
Frequency = 60Hz
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Noise Spectral Density
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
tEN
Capacitive-Load Stability Range
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
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Settling to 0.01%,
COUT = 0.1µF
Settling to 0.01%,
COUT = 0.1µF
µVRMS
nV/√Hz
84
dB
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
30
µs
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
75
µs
IOUT ≤ 10mA
0.1
10
µF
Guaranteed by line regulation
2.8
5.5
V
TA = +25°C
150
TA = TMIN to TMAX
235
300
0.6
6
µA
µA
Maxim Integrated │ 6
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT25 (VOUT = 2.500V) (continued)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
+1
µA
ENABLE/SHUTDOWN
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
-1
0.7 x VIN
0.3 x VIN
V
Electrical Characteristics—MAX607__ANT25 (VOUT = 2.5V)
(VIN = +5.0V, IOUT = 0mA, CIN = COUT = 0.1µF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
+0.1
%
2.7
10
ppm/°C
60
300
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature Drift
(Note 2)
TA = +25°C
TCVOUT
Over specified VIN
range
Line Regulation
350
0mA < IOUT < 10mA, source
Dropout Voltage
Short-Circuit Current
TA = +25°C
TA = TMIN to TMAX
0mA < IOUT < 10mA, sink
Load Regulation
Output Current
-0.1
IOUT = 10mA, TA = TMIN to TMAX (Note 3)
IOUT
ISC
Long-Term Stability
Thermal Hysteresis
80
200
75
180
110
-10
µV/V
µV/mA
230
mV
+10
mA
Sourcing to ground
25
Sinking from VIN
25
1000 hours at TA = +25°C
(Note 4)
16
ppm
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
4.8
µVP-P
10Hz to 10kHz, COUT = 0.1µF
6
µVRMS
fSW = 1kHz, COUT = 0.1µF
60
nV/√Hz
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Noise Spectral Density
Ripple Rejection
Frequency = 60Hz
84
dB
Turn-On Settling Time
tR
Settling to 0.01%, COUT = 0.1µF
30
µs
Enable Settling Time
tEN
Settling to 0.01%, COUT = 0.1µF
Capacitive-Load Stability Range
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
75
µs
IOUT ≤ 10mA
0.1
10
µF
Guaranteed by line regulation
2.8
5
V
TA = +25°C
160
TA = TMIN to TMAX
250
320
0.6
µA
6
µA
+1
µA
ENABLE/SHUTDOWN
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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0.3 x VIN
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Maxim Integrated │ 7
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT30 (VOUT = 3.000V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature Drift
(Note 2)
TCVOUT
+0.04
-0.08
+0.08
MAX6070D, TA = +25°C
-0.2
Dropout Voltage
1.5
6
MAX6070B/MAX6071B
2.0
8
90
200
Long-Term Stability
Thermal Hysteresis
ppm/°C
20
TA = +25°C
TA = TMIN to TMAX
260
µV/V
0mA < IOUT < 10mA, sink
90
170
0mA < IOUT < 10mA, source
90
150
IOUT = 10mA, TA = TMIN to TMAX (Note 3)
80
150
mV
+10
mA
IOUT
ISC
%
+0.2
MAX6070A/MAX6071A
Over specified VIN
range
Load Regulation
Short-Circuit Current
-0.04
MAX6070B/MAX6071B, TA = +25°C
MAX6070D
Line Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
-10
µV/mA
Sourcing to ground
25
Sinking from VIN
25
1000 hours at TA = +25°C
(Note 4)
40
ppm
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
4.6
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF
7.8
MAX6070 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF, CFILTER = 0.1µF
5.0
Frequency = 60Hz
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
Settling to 0.01%,
COUT = 0.1µF
tEN
Settling to 0.01%,
COUT = 0.1µF
Capacitive-Load Stability Range
µVRMS
80
dB
MAX6070,
CFILTER = 0.1µF
9.7
ms
MAX6071
40
µs
MAX6070,
CFILTER = 0.1µF
9.7
ms
MAX6071
75
µs
IOUT ≤ 10mA
0.1
Guaranteed by line regulation
3.2
10
µF
5.5
V
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
TA = +25°C
150
TA = TMIN to TMAX
235
300
0.6
µA
6
µA
+1
µA
ENABLE/SHUTDOWN
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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0.7 x VIN
0.3 x VIN
V
Maxim Integrated │ 8
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__ AUT33 (VOUT = 3.300V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature Drift
(Note 2)
TCVOUT
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070D, TA = +25°C
-0.2
+0.2
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
90
220
Over specified VIN
range
Load Regulation
Dropout Voltage
Short-Circuit Current
-0.04
MAX6070D
Line Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
IOUT
ISC
Long-Term Stability
Thermal Hysteresis
%
ppm/°C
20
TA = +25°C
285
µV/V
TA = TMIN to TMAX
0mA < IOUT < 10mA, sink
0mA < IOUT < 10mA, source
100
190
100
165
IOUT = 10mA, TA = TMIN to TMAX
(Note 3)
65
150
mV
10
mA
-10
Sourcing to ground
25
Sinking from VIN
25
µV/mA
mA
1000 hours at TA = +25°C
(Note 4)
40
ppm
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
10
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF
9
MAX6070 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF, CFILTER = 0.1µF
6
Frequency = 60Hz
78
dB
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
42
µs
MAX6070,
CFILTER = 0.1µF
10
ms
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
tEN
Capacitive-Load Stability Range
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
Settling to 0.01%,
COUT = 0.1µF
Settling to 0.01%,
COUT = 0.1µF
MAX6071
µVRMS
75
IOUT ≤ 10mA
0.1
Guaranteed by line regulation
3.5
TA = +25°C
160
TA = TMIN to TMAX
µs
10
µF
5.5
V
240
330
0.6
µA
6
µA
+1
µA
ENABLE/SHUTDOWN
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
www.maximintegrated.com
-1
0.7 x VIN
0.3 x VIN
V
Maxim Integrated │ 9
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT41 (VOUT = 4.096V)
(VIN = +5.0V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature
Drift (Note 2)
TCVOUT
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070D, TA = +25°C
-0.2
+0.2
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
100
250
Over specified VIN
range
Load Regulation
Dropout Voltage
Short-Circuit Current
-0.04
MAX6070D
Line Regulation
Output Current
MAX6070A/MAX6071A, TA = +25°C
IOUT
ISC
Long-Term Stability
Thermal Hysteresis
20
TA = +25°C
TA = TMIN to TMAX
350
%
ppm/
°C
µV/V
0mA < IOUT < 10mA, sink
125
225
0mA < IOUT < 10mA, source
135
225
IOUT = 10mA, TA = TMIN to TMAX (Note 3)
75
150
mV
+10
mA
-10
µV/mA
Sourcing to ground
25
Sinking from VIN
25
1000 hours at TA = +25°C
(Note 4)
35
ppm
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
9.6
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF
12
MAX6070 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF, CFILTER = 0.1µF
9
Frequency = 60Hz
80
dB
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
40
µs
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
85
µs
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
Settling to 0.01%,
COUT = 0.1µF
tEN
Settling to 0.01%,
COUT = 0.1µF
Capacitive-Load Stability Range
IOUT ≤ 10mA
0.1
Guaranteed by line regulation
4.3
µVRMS
10
µF
5.5
V
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
TA = +25°C
150
TA = TMIN to TMAX
235
350
µA
6
µA
+1
µA
ENABLE
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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-1
0.7 x VIN
0.3 x VIN
V
Maxim Integrated │ 10
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT50 (VOUT = 5.000V)
(VIN = +5.5V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage Accuracy
Output Voltage Temperature
Drift (Note 2)
TCVOUT
-0.04
+0.04
MAX6070B/MAX6071B, TA = +25°C
-0.08
+0.08
MAX6070A/MAX6071A
1.5
6
MAX6070B/MAX6071B
2.0
8
200
400
Over specified VIN
range
Line Regulation
Load Regulation
Dropout Voltage
Output Current
MAX6070A/MAX6071A, TA = +25°C
TA = +25°C
TA = TMIN to TMAX
500
%
ppm/°C
µV/V
0mA < IOUT < 10mA, sink
160
275
0mA < IOUT < 10mA, source
160
275
IOUT = 10mA, TA = TMIN to TMAX (Note 5)
60
150
mV
+10
mA
IOUT
-10
µV/mA
Sourcing to ground
25
25
Long-Term Stability
Sinking from VIN
1000 hours at TA = +25°C
35
ppm
Thermal Hysteresis
(Note 4)
85
ppm
1/f noise, 0.1Hz to 10Hz, COUT = 0.1µF
9
µVP-P
MAX6071 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF
15
MAX6070 thermal noise, 10Hz to 10kHz,
COUT = 0.1µF, CFILTER = 0.1µF
12
Frequency = 60Hz
Short-Circuit Current
ISC
mA
DYNAMIC CHARACTERISTICS
Noise Voltage
eOUT
Ripple Rejection
Turn-On Settling Time
Enable Settling Time
tR
tEN
Capacitive-Load Stability Range
Settling to 0.01%,
COUT = 0.1µF
Settling to 0.01%,
COUT = 0.1µF
µVRMS
74
dB
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
50
µs
MAX6070,
CFILTER = 0.1µF
10
ms
MAX6071
100
µs
IOUT ≤ 10mA
0.1
10
µF
Guaranteed by line regulation
5.2
5.5
V
INPUT
Supply Voltage
VIN
Quiescent Supply Current
IIN
Shutdown Supply Current
ISD
TA = +25°C
160
TA = TMIN to TMAX
250
330
µA
6
µA
+1
µA
ENABLE
Enable Input Current
IEN
Enable Logic-High
VIH
Enable Logic-Low
VIL
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-1
0.7 x VIN
0.3 x VIN
V
Maxim Integrated │ 11
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Electrical Characteristics—MAX607__AUT50 (VOUT = 5.000V) (continued)
(VIN = +5.5V, IOUT = 0mA, COUT = 0.1µF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
Note 1: Limits are 100% production tested at TA = +25°C. Specifications where TA < +25°C or TA > +25°C are guaranteed by design
and characterization.
Note 2: Temperature coefficient is calculated using the “box method” which measures temperature drift as the maximum voltage
variation over a specified temperature range. The unit of measurement is ppm/°C.
Note 3: Dropout voltage is defined as the minimum differential voltage (VIN - VOUT) at which VOUT decreases by 0.2% from its
original value at VIN = 5.0V.
Note 4: Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from TMAX to TMIN.
Note 5: Dropout voltage is defined as the minimum differential voltage (VIN – VOUT) at which VOUT decreases by 0.2% from its
original value at VIN = 5.5V.
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Maxim Integrated │ 12
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
1.2500
1.2497
4.0975
2.5005
4.0970
OUTPUT VOLTAGE (V)
1.2502
MAX6071_41 OUTPUT
VOLTAGE TEMPERATURE DRIFT
MAX6070 toc01b
MAX6070 toc01a
2.5010
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
1.2505
MAX6071_25 OUTPUT
VOLTAGE TEMPERATURE DRIFT
2.5000
MAX6070 toc01c
MAX6071_12 OUTPUT
VOLTAGE TEMPERATURE DRIFT
4.0965
4.0960
4.0955
2.4995
4.0950
2.4990
25
50
75
125
4.0945
-50
-25
0
25
50
75
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX6071_25
LINE REGULATION
MAX6071_25
LOAD REGULATION
2.5000
2.4995
125
-50
4.8
2.5000
TA = 0°C
-10
40
20
0
5
0
10
10
80
PSRR (dB)
60
50
40
50
40
30
30
180
160
120
100
80
60
20
40
10
10
20
0
0
1k
FREQUENCY (Hz)
www.maximintegrated.com
10k
100k
100k
140
20
100
10k
200
SUPPLY CURRENT (µA)
70
1k
MAX6071_12
SUPPLY CURRENT vs. INPUT VOLTAGE
60
10
100
FREQUENCY (Hz)
MAX6070 toc04c
90
70
PSRR (dB)
-5
MAX6071_41
PSRR vs. FREQUENCY
MAX6070 toc04b
80
125
60
OUTPUT CURRENT (mA)
MAX6071_25
PSRR vs. FREQUENCY
90
100
100
2.4995
INPUT VOLTAGE (V)
100
75
80
TA = +125°C
2.5005
5.5
50
TA = +85°C
2.5010
2.4985
4.1
25
120
TA = -40°C
3.4
0
MAX6071_12
PSRR vs. FREQUENCY
2.4990
2.4990
2.7
-25
TEMPERATURE (°C)
2.5015
OUTPUT VOLTAGE (V)
2.5005
100
2.5020
MAX6070 toc02
2.5010
SUPPLY CURRENT (mA)
100
MAX6070 toc04a
0
MAX6070 toc05a
-25
MAX6070 toc03
-50
PSRR (dB)
1.2495
0
10
100
1k
FREQUENCY (Hz)
10k
100k
2.7
3.4
4.1
4.8
5.5
INPUT VOLTAGE (V)
Maxim Integrated │ 13
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
180
160
140
120
100
80
60
120
100
80
20
20
4.1
4.8
5.5
0
4.6
4.3
4.9
5.2
5.5
10
100
1k
100k
10k
FREQUENCY (Hz)
MAX6071_25
ROUT vs. FREQUENCY
MAX6071_41
ROUT vs. FREQUENCY
MAX6071_12
SUPPLY CURRENT vs. TEMPERATURE
ROUT (I)
0.4
1mA
SOURCING
0.3
0.6
0.4
1mA
SOURCING
0.2
0.1
0.2
1mA
SINKING
0
100
1k
100
1k
VIN = 5.5V
200
SUPPLY CURRENT (µA)
100
MAX6070 toc07a
60
-50
-25
0
25
50
75
100
125
MAX6070_12 OUTPUT NOISE
(0.1Hz TO 10Hz)
MAX6070 toc09a
MAX6070 toc07c
250
MAX6070 toc07b
VIN = 2.8V
80
TEMPERATURE (°C)
MAX6071_41
SUPPLY CURRENT vs. TEMPERATURE
150
VIN = 2.7V
100
100k
10k
MAX6071_25
SUPPLY CURRENT vs. TEMPERATURE
VIN = 5.5V
120
0
10
FREQUENCY (Hz)
200
140
20
FREQUENCY (Hz)
250
VIN = 5.5V
160
40
1mA
SINKING
0
100k
10k
180
SUPPLY CURRENT (µA)
1.0
0.8
0.5
200
MAX6070 toc06c
1.2
MAX6070 toc06b
0.6
SUPPLY CURRENT (µA)
1mA
SINKING
0.1
INPUT VOLTAGE (V)
0.7
VOUT = 1.25V
2µV/div
150
VIN = 4.3V
100
50
50
0
-50
1mA
SOURCING
INPUT VOLTAGE (V)
0.8
10
0.4
0.2
0
3.4
0.5
0.3
60
40
2.7
ROUT (I)
0.6
140
40
0
0.7
ROUT (I)
SUPPLY CURRENT (µA)
160
0.8
MAX6070 toc05c
180
SUPPLY CURRENT (µA)
200
MAX6070 toc05b
200
MAX6071_12
ROUT vs. FREQUENCY
MAX6071_41
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX6070 toc06a
MAX6071_25
SUPPLY CURRENT vs. INPUT VOLTAGE
0
-25
0
25
50
75
TEMPERATURE (°C)
www.maximintegrated.com
100
125
-50
-25
0
25
50
75
100
125
1s/div
TEMPERATURE (°C)
Maxim Integrated │ 14
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
MAX6070_12
OUTPUT NOISE DENSITY vs. FREQUENCY
MAX6070_41 OUTPUT NOISE
(0.1Hz TO 10Hz)
toc08b
MAX6070 toc08c
VOUT = 2.5V
1k
OUTPUT NOISE DENSITY (nV/√Hz)
VOUT = 4.096V
4µV/div
1∝V/div
MAX6070 toc09a
MAX6070_25 OUTPUT NOISE
(0.1Hz To 10Hz) (SOT23)
100
CF = 0µF
CF = 0.1µF
10
1
10
1s/div
1s/div
1k
10k
FREQUENCY (Hz)
100
CF = 0µF
CF = 0.1µF
10
1
1k
OUTPUT NOISE DENSITY (nV/√Hz)
MAX6070 toc09b
1k
MAX6070_41
OUTPUT NOISE DENSITY vs. FREQUENCY
CF = 0µF
MAX6070 toc09c
MAX6070_25
OUTPUT NOISE DENSITY vs. FREQUENCY
OUTPUT NOISE DENSITY (nV/√Hz)
100
100
CF = 0.1µF
10
1
10
100
1k
FREQUENCY (Hz)
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10k
10
100
1k
10k
FREQUENCY (Hz)
Maxim Integrated │ 15
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
MAX6070_25 TURN-ON TRANSIENT
(CFILTER = 0µF)
MAX6070_12 TURN-ON TRANSIENT
(CFILTER = 0µF)
MAX6070 toc10b
MAX6070 toc10a
VIN = 5V
0.01% SETTLING
TIME = 21µs
VIN = 0V
VIN = 5V
VOUT = 1.25V
VIN
0V
0.01% SETTLING
TIME = 33µs
VOUT = 2.5V
VOUT
0V
VOUT = 0V
10µs/div
10µs/div
MAX6070_41 TURN-ON TRANSIENT
(CFILTER = 0µF)
MAX6070_12 TURN-ON TRANSIENT
(CFILTER = 0.1µF)
MAX6070 toc11a
MAX6070 toc10c
VIN = 5V
VIN = 0V
0.01% SETTLING
TIME = 41µs
VIN = 0V
0.01% SETTLING VIN = 5V
TIME = 6.1ms
VOUT = 1.25V
VOUT = 4.096V
VOUT = 0V
VOUT = 0V
2ms/div
10µs/div
MAX6070_41 TURN-ON TRANSIENT
(CFILTER = 0.1µF)
MAX6070_25 TURN-ON TRANSIENT
(CFILTER = 0.1µF)
MAX6070 toc11c
MAX6070 toc11b
VIN = 5V
VIN
0V
VIN = 0V
0.01% SETTLING TIME = 9.6ms
VIN = 5V
0.01% SETTLING
TIME = 10ms
VOUT = 2.5V
VOUT = 4.096V
VOUT
0V
VOUT = 0V
4ms/div
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4ms/div
Maxim Integrated │ 16
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
MAX6071_25 ±10mA LOAD TRANSIENT
(COUT = 0.1µF)
MAX6071_12 ±10mA LOAD TRANSIENT
(COUT = 0.1µF)
MAX6070 toc12b
MAX6070 toc12a
VOUT
VOUT = 2.5V
VOUT = 1.25V
SINK 10mA
SOURCE
10mA
SINK 10mA
IOUT
SOURCE
10mA
VOUT
IOUT
VOUT = 0V
VOUT = 0V
10µs/div
10µs/div
MAX6071_41 ±10mA LOAD TRANSIENT
(COUT = 0.1µF)
MAX6070_12 LINE TRANSIENT
(COUT = 0.1µF)
MAX6070 toc13a
MAX6070 toc12c
VIN = 4.35V
VOUT = 4.096V
SINK 10mA
SOURCE
10mA
VOUT
VIN
200mV/div
VIN = 3.85V
VOUT
20mV/div
IOUT
VOUT = 0V
10µs/div
20µs/div
MAX6070_25 LINE TRANSIENT
(COUT = 0.1µF)
MAX6070_41 LINE TRANSIENT
(COUT = 0.1µF)
MAX6070 toc13c
MAX6070 toc13b
VIN = 5.25V
VIN = 4.35V
VIN
200mV/div
VIN
200mV/div VIN = 4.75V
VIN = 3.85V
VOUT
20mV/div
VOUT
200mV/div
20µs/div
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20µs/div
Maxim Integrated │ 17
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
MAX6070_12 ENABLE TRANSIENT
(CFILTER = 0µF)
MAX6070_12 ENABLE TRANSIENT
(CFILTER = 0.1µF)
MAX6070 toc14
0.01% SETTLING
TIME = 63µs
VIN = 0V
VIN = 5V
VOUT = 1.25V
MAX6070 toc15
VIN = 0V
VIN = 5V
0.01% SETTLING
TIME = 6.1ms
VOUT = 1.25V
VOUT = 0V
VOUT = 0V
10µs/div
2ms/div
MAX6070_25 ENABLE TRANSIENT
(CFILTER = 0µF)
MAX6070_25 ENABLE TRANSIENT
(CFILTER = 0.1µF)
MAX6070 toc17
MAX6070 toc16
VIN = 5V
VIN = 5V
VIN = 0V
0.01% SETTLING TIME = 75µs
VOUT = 2.5V
VIN = 0V
0.01% SETTLING
TIME = 9.6ms
VOUT = 2.5V
VOUT = 0V
VOUT = 0V
4ms/div
10µs/div
MAX6070_41 ENABLE TRANSIENT
(CFILTER = 0µF)
MAX6070_41 ENABLE TRANSIENT
(CFILTER = 0.1µF)
MAX6070 toc18
VIN = 0V
VIN = 5V
0.01% SETTLING TIME = 85µs
MAX6070 toc19
VIN = 0V
VOUT = 4.096V
VIN = 5V
VOUT = 4.096V
VOUT = 0V
VOUT = 0V
10µs/div
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0.01% SETTLING
TIME = 10ms
4ms/div
Maxim Integrated │ 18
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Pin Configurations
TOP VIEW
+
FILTER
1
GND
2
EN
3
+
MAX6070
6
OUTF
GNDF
1
5
OUTS
GNDS
2
4
IN
EN
3
SOT23
MAX6071
6
OUTF
5
OUTS
4
IN
SOT23
Pin Description
PIN
NAME
FUNCTION
MAX6070
MAX6071
1
—
FILTER
Filter Input. Connect a 0.1µF capacitor from FILTER to ground to provide high-frequency
bypass. Leave unconnected, if not used.
—
1
GNDF
Ground Force
2
—
GND
-
2
GNDS
3
3
EN
Enable. Drive high to enable the device. Drive low to disable the device.
4
4
IN
Supply Input
5
5
OUTS
Voltage Reference Sense Output
6
6
OUTF
Voltage Reference Force Output. Short OUTF to OUTS as close as possible to the load.
Bypass OUTF with a capacitor (0.1µF to 10µF) to GND.
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Ground
Ground Sense. Connect to ground connection at the load.
Maxim Integrated │ 19
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Bump Configuration
TOP VIEW
MAX6071
+
OUTS
B1
A1
EN
OUTF
B2
A2
GNDS
IN
B3
A3
GNDF
WLP
Bump Description
BUMP
NAME
FUNCTION
A1
EN
A2
GNDS
Ground Sense. Connect to ground connection at the load.
A3
GNDF
Ground Force
B1
OUTS
Voltage Reference Sense Output
B2
OUTF
Voltage Reference Force Output. Short OUTF to OUTS as close as possible to the load. Bypass OUTF with
a capacitor (0.1µF to 10µF) to GNDF.
B3
IN
Enable. Drive high to enable the device. Drive low to disable the device.
Supply Input. Connect a 0.1µF capacitor to GNDF.
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Maxim Integrated │ 20
MAX6070/MAX6071
Detailed Description
Wideband Noise Reduction (FILTER)
To improve wideband noise and transient power-supply
noise with the MAX6070, connect a 0.1µF capacitor from
FILTER to GND (see the Typical Operating Characteristics).
Larger values do not appreciably improve noise reduction.
A 0.1µF capacitor reduces the spectral noise density at
1kHz from 60nV/√Hz to 30nV/√Hz for the 2.5V output.
Noise at the input pin can affect output noise, but can
be reduced by connecting an optional bypass capacitor
between IN and GND as shown in Figure 1.
Output Bypassing
The MAX6070/MAX6071 require an output capacitor
between 0.1µF and 10µF. Place the output capacitor
as close to OUTF as possible. For applications driving
switching capacitive loads or rapidly changing load currents, use a 0.1µF capacitor in parallel with a larger load
capacitor to reduce equivalent series resistance (ESR).
Larger capacitor values and lower ESR reduce transients
on the reference output.
Supply Current
The MAX6070/MAX6071 draw 150µA of current and are
virtually independent of the supply voltage, with only a
1.6µA /V variation with supply voltage.
Thermal Hysteresis
Thermal hysteresis is the change of output voltage at
TA = +25°C before and after the device is cycled over its
entire operating temperature range. The typical thermal
hysteresis value is 85ppm.
Low-Noise, High-Precision Series
Voltage References
the voltage accuracy is needed (see Figure 1). The
MAX6071 features the same type of Kelvin connection to
cancel drops in the ground return line. Connect the load to
ground and connect GNDS to ground as close as possible
to the load ground connection (see Figure 2).
Shutdown
The MAX6070/MAX6071 feature an active-high enable
pin (EN). Pulling EN low disables the output with a resistive load to ground and forces the quiescent current to
less than 1µA. The value of the load is typically 200kω.
Pulling EN high enables normal operation.
Applications Information
Wideband Noise Reduction
Figure 1 shows a typical noise reduction filter application
circuit. Note that the use of the wideband noise filter will
increase turn-on time.
High-Resolution DAC and
Reference from a Single Supply
Figure 2 shows a typical circuit providing the reference for
a high-resolution, 16-bit MAX541 DAC.
Precision Current Source
Figure 3 shows a typical circuit providing a precision current source. The OUTF output provides the bias current
for the bipolar transistor. OUTS and GNDS sense the
voltage across the resistor and adjust the current sourced
by OUTF accordingly.
Turn-On Time
5V SUPPLY
These devices typically turn on and settle to within 0.01%
of their final value in 30µs. A noise reduction capacitor of
0.1µF increases the turn-on time of the MAX6070 to 10ms.
EN
Output Force and Sense
The MAX6070/MAX6071 provide independent connections for the force output (OUTF) supplying current to
the load and the circuit input regulating the load voltage
through the output sense pin (OUTS). This configuration
allows for the cancellation of the voltage drop on the
lines connecting the MAX6070/MAX6071 and the load.
When using the Kelvin connection made possible by the
independent force and sense outputs, connect OUTF to
the load and connect OUTS to OUTF at the point where
www.maximintegrated.com
IN
LOAD
OUTF
OUTS
0.1µF
FILTER
0.1µF
MAX6070
0.1µF
GND
Figure 1. Reference Output Kelvin Connection
Maxim Integrated │ 21
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
5V SUPPLY
5V SUPPLY
IN
EN
0.1µF
IN
OUTF
REF
MAX541
OUT
DAC
MAX6071
OUTS
GND GNDS
VDD
0.1µF
ISOURCE
0.1µF
MAX6071
OUTF
LOAD
OUTS
GND
GND
GNDS
R
VOUT(NOMINAL)/R = ISOURCE
Figure 2. Reference Ground Kelvin Connection
Figure 3. Precision Current Source
Long-Term Drift and Humidity Effects
Figure 6 shows the results of temperature and humidity
measurements both inside and outside the oven. The key
parameter to note is the purple line which represents the
humidity outside
The results of these experiments are detailed in Figure 4,
Figure 5, and Figure 6. The latest data shows the drift out
to 5,800 hours. The y axis is the drift, measured in parts
per million, between +50ppm and -50ppm. Figure 4 shows
the 16 parts on the lab bench in the open air. It is here the
effects of the humidity fluctuating between 18% and 51%
can be seen.
Figure 5 details the same set up in the humidity controlled
oven. Temperature (25°C) and humidity (40%) are relatively
consistent inside the oven. Data was affected a bit at
about the
2,500 hour mark when the pump that regulates the
humidity temporarily stopped working for about 48 hours.
This caused a brief spike in the output voltages before
they returned to their previous profile.
the oven (on the lab bench). The swings in humidity are
apparent in Figure 4, with the output voltage drift primarily
tracking the humidity changes.
Maxim is studying the effects of drift and humidity on
multiple references beyond 1,000 hours. Contact the
Maxim technical support line or your local sales office for
details on the latest data.
LONG-TERM STABILITY vs. TIME
(MAX6070AAUT25+)
60
DEV 1
50
OUTPUT VOLTAGE CHANGE (ppm)
There are many factors that contribute to a voltage
reference’s drift over time. These can include package
stress, board stress and layout, humidity and partto-part variation. In an effort to better quantify the
drift of the MAX6070 core over time, Maxim has
evaluated 16 samples on two identical bench setups.
Sixteen MAX6070AAUT25+ samples were installed on a
pair of development boards. One board was set up in a
humidity and temperature controlled oven. The conditions
were set to 25°C and 40% relative humidity. The second
board was set up on the lab bench in the open air, where
humidity was measured to fluctuate between 18% and 51%.
DEV 2
40
DEV 3
30
DEV 4
DEV 5
20
DEV 6
10
DEV 7
0
DEV 8
DEV 9
-10
DEV 10
-20
DEV 11
-30
DEV 12
DEV 13
-40
DEV 14
-50
-60
DEV 15
DEV 16
0
1000
2000 3000 4000
DURATION (HOURS)
5000
6000
Figure 4. MAX6070AAUT2.5+ Long-Term Drift on the Bench
Setup
www.maximintegrated.com
Maxim Integrated │ 22
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
LONG-TERM STABILITY vs. TIME
(MAX6070AAUT25+)
TEMPERATURE AND RELATIVE HUMIDITY
60
DEV 2
40
DEV 3
25
50
20
40
15
30
DEV 5
20
DEV 6
10
DEV 7
DEV 8
0
DEV 9
-10
DEV 10
-20
DEV 11
DEV 12
-30
10
20
DEV 13
DEV 14
-40
DEV 15
-50
CHAMBER TEMPERATURE
LAB TEMPERATURE
5
CHAMBER HUMIDITY
1000
2000
3000
4000
5000
6000
DURATION (HOURS)
Figure 5. MAX6070AAUT25+ Long-Term Drift in the Oven
(Temperature = +25°C, Relative Humidity = 40%)
www.maximintegrated.com
10
LAB HUMIDITY
DEV 16
0
RELATIVE HUMIDITY (%)
DEV 4
30
TEMPERATURE (°C)
OUTPUT VOLTAGE CHANGE (ppm)
60
DEV 1
50
-60
30
0
0
1000
2000
3000
4000
5000
0
6000
DURATION (HOURS)
Figure 6. Temperature and Relative Humidity Measured Inside
the Oven and in the Lab Benchtop Environment
Maxim Integrated │ 23
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Selector Guide
PART
FILTER
MAX6070AAUT12+T
Yes
V OUT (V)
ACCURACY (%)
1.25
0.04
MAX6070AAUT18/V+T
TOP MARK
+ACPF
Yes
1.8
0.04
+ACVV
MAX6070AAUT18+T
Yes
1.8
0.04
+ACPH
MAX6070AAUT21+T
Yes
2.048
0.04
+ACPJ
MAX6070AAUT25+T
Yes
2.5
0.04
+ACPL
MAX6070AAUT30+T
Yes
3.0
0.04
+ACPN
MAX6070AAUT33+T
Yes
3.3
0.04
+ACPP
MAX6070AAUT33/V+T
Yes
3.3
0.04
+ACVN
MAX6070AAUT41+T
Yes
4.096
0.04
+ACPR
MAX6070AAUT50+T
Yes
5.0
0.04
+ACPV
MAX6070AAUT50/V+T
Yes
5.0
0.04
+ACTR
MAX6070BAUT12+T
Yes
1.25
0.08
+ACPG
MAX6070BAUT12/V+T
Yes
1.25
0.08
+ACSP
MAX6070BAUT18+T
Yes
1.8
0.08
+ACPI
MAX6070BAUT21+T
Yes
2.048
0.08
+ACPK
MAX6070BAUT21/V+T
Yes
2.048
0.08
+ACVG
+ACPM
MAX6070BAUT25+T
Yes
2.5
0.08
MAX6070BAUT25/V+T
Yes
2.5
0.08
+ACTS
MAX6070BAUT30+T
Yes
3.0
0.08
+ACPO
MAX6071AAUT30/V+T
No
3.0
0.04
+ACVQ
MAX6070BAUT33+T
Yes
3.3
0.08
+ACPQ
MAX6070BAUT33/V+T
Yes
3.3
0.08
+ACUY
MAX6070BAUT41+T
Yes
4.096
0.08
+ACPS
MAX6070BAUT41/V+T
Yes
4.096
0.08
+ACTT
MAX6070DAUT12/V+T
Yes
1.25
0.2
+ACWG
MAX6070DAUT25/V+T
Yes
2.5
0.2
+ACWF
MAX6070DAUT30/V+T
Yes
3.0
0.2
+ACWE
MAX6070DAUT33/V+T*
Yes
3.3
0.2
—
+ACWC
MAX6070DAUT41/V+T
Yes
4.096
0.2
MAX6070BAUT49/V+T*
Yes
4.9
0.08
—
MAX6070BAUT50+T
Yes
5.0
0.08
+ACPW
MAX6070BAUT50/V+T
Yes
5.0
0.08
+ACVA
MAX6071AAUT12+T
No
1.25
0.04
+ACPX
MAX6071AAUT18+T
No
1.8
0.04
+ACPZ
MAX6071AAUT21+T
No
2.048
0.04
+ACQB
MAX6071AAUT25+T
No
2.5
0.04
+ACQD
MAX6071AAUT30+T
No
3.0
0.04
+ACQF
MAX6071AAUT33+T
No
3.3
0.04
+ACQH
MAX6071AAUT41+T
No
4.096
0.04
+ACQJ
MAX6071AAUT50+T
No
5.0
0.04
+ACQN
MAX6071BAUT12+T
No
1.25
0.08
+ACPY
MAX6071BAUT18+T
No
1.8
0.08
+ACQA
MAX6071BAUT21+T
No
2.048
0.08
+ACQC
www.maximintegrated.com
Maxim Integrated │ 24
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Selector Guide (continued)
PART
FILTER
MAX6071BAUT25+T
No
V OUT (V)
ACCURACY (%)
TOP MARK
2.5
0.08
MAX6071ANT25+T
+ACQE
No
2.5
0.1
+F
MAX6071BAUT25/V+T
No
2.5
0.08
+ACTU
MAX6071BAUT30+T
No
3.0
0.08
+ACQG
MAX6071BAUT33+T
No
3.3
0.08
+ACQI
MAX6071BAUT41+T
No
4.096
0.08
+ACQK
MAX6071BAUT41/V+T*
No
4.096
0.08
+ACTV
MAX6071BAUT50+T
No
5.0
0.08
+ACQO
MAX6071BAUT50/V+T*
No
5.0
0.08
+ACTW
/V denotes an automotive qualified part.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*Future product–contact factory for availability.
Ordering Information
Chip Information
TEMP RANGE
PINPACKAGE
MAX6070AAUT18/V+T
-40°C to +125°C
6 SOT23
MAX6070_AUT_ _+T
-40°C to +125°C
6 SOT23
MAX6070AAUT33/V+T
-40°C to +125°C
6 SOT23
MAX6070AAUT50/V+T
-40°C to +125°C
6 SOT23
MAX6070BAUT12/V+T
-40°C to +125°C
6 SOT23
MAX6070BAUT21/V+T
-40°C to +125°C
6 SOT23
MAX6070BAUT25/V+T
-40°C to +125°C
6 SOT23
MAX6070BAUT33/V+T
-40°C to +125°C
6 SOT23
MAX6070BAUT41/V+T
-40°C to +125°C
6 SOT23
MAX6070DAUT12/V+T
-40°C to +125°C
6 SOT23
MAX6070DAUT25/V+T
-40°C to +125°C
6 SOT23
MAX6070DAUT30/V+T
-40°C to +125°C
6 SOT23
MAX6070DAUT33/V+T*
-40°C to +125°C
6 SOT23
MAX6070DAUT41/V+T
-40°C to +125°C
6 SOT23
MAX6070BAUT49/V+T*
-40°C to +125°C
6 SOT23
MAX6071_AUT_ _+T
-40°C to +125°C
6 SOT23
MAX6071ANT25+T
-40°C to +125°C
6 WLP
MAX6071AAUT30/V+T
-40°C to +125°C
6 SOT23
MAX6071BAUT25/V+T
-40°C to +125°C
6 SOT23
PART
PROCESS: BIPOLAR
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*Future product—contact factory for availability.
Note: The MAX6070/MAX6071 are available in A, B, or D
grade with various output voltages. Choose the desired grade
and output voltage from the Selector Guide and insert the suffix
in the blank above to complete the part number.
www.maximintegrated.com
Maxim Integrated │ 25
MAX6070/MAX6071
Low-Noise, High-Precision Series
Voltage References
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
0
10/12
Initial release
1
1/13
Added 2.048V, 3.0V, and 5.0V options to data sheet. Revised General Description,
Benefits and Features, Absolute Maximum Ratings, Electrical Characteristics, and
Selector Guide
1–9, 17, 18
2
3/13
Added 1.8V and 3.3V options to data sheet. Revised General Description, Benefits
and Features, Electrical Characteristics, and Selector Guide
1, 2–12, 21, 22
3
2/14
Added automotive package for the MAX6070B.
4
7/15
Added automotive packages to data sheet and revised TOC9b. Revised Benefits and
Features section.
1, 16, 22, 23
5
1/16
Added WLP option text, associated Electrical Characteristics table, package drawing
and Bump Description table
1, 2, 7, 19, 22
6
12/17
Added AEC statement to Benefits and Features section and updated Selector Guide
1, 23
7
3/18
Updated Selector Guide and Ordering Information tables
23, 24
8
8/18
Updated Selector Guide and Ordering Information tables
23, 24
9
9/18
Updated Selector Guide and Ordering Information tables
23, 24
10
1018
Updated Applications Information, Packaging Information, Electrical Characteristics
table, Selector Guide, and Ordering Information
11
12/18
Updated Selector Guide and Ordering Information
12
3/19
Updated Package Information, Detailed Description, Selector Guide, and
Ordering Information
13
5/19
Updated Package Information
14
7/19
Updated Ordering Information and Selector Guide
15
11/19
Updated Electrical Characteristics, Selector Guide, and Ordering Information
16
4/20
Added (max, A grade) in the General Description and Benefits and Features sections,
updated Electrical Characteristics table, added future part and deleted asterisk in the
Selector Guide and Ordering Information tables
17
6/20
Updated Ordering Information and Selector Guide
25
18
12/20
Updated Selector Guide and Ordering Information
24, 25
DESCRIPTION
—
21
1, 2–12, 23, 24
23, 24
2, 22–24
2
24, 25
10, 24, 25
1, 3, 6, 8–10,
24, 25
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2020 Maxim Integrated Products, Inc. │ 26
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