19-2021; Rev 4; 7/11
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Features
o
o
o
o
o
o
o
Ultra-Low 750nA Supply Current Per Amplifier
Ultra-Low +1.8V Supply Voltage Operation
Ground-Sensing Input Common-Mode Range
Outputs Swing Rail-to-Rail
Outputs Source and Sink 11mA of Load Current
No Phase Reversal for Overdriven Inputs
High 120dB Open-Loop Voltage Gain
o Low 500µV Input Offset Voltage
o 9kHz Gain-Bandwidth Product
(MAX4470/MAX4471/MAX4472)
o 40kHz Gain-Bandwidth Product
(MAX4464/MAX4474)
o 250pF (min) Capacitive Load Capability
o Available in Tiny, 6-Bump WLP, 5-Pin SC70, and
8-Pin SOT23 Packages
Ordering Information
Applications
Battery-Powered
Systems
Portable Instrumentation
Pagers and Cellphones
Micropower
Thermostats
Electrometer Amplifiers
Solar-Powered Systems
Remote Sensor Active
Badges
pH Meters
Pin Configurations
MAX4470
+ IN+
VSS
A1
A2
IN-
VDD
B1
B2
OUT
N.C.
C1
C2
WLP BUMP
SIDE DOWN
Pin Configurations continued at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
PART
TEMP
RANGE
PINPACKAGE
TOP
MARK
MAX4464EXK+T
-40°C to +85°C
5 SC70
+ABT
MAX4464EUK+T
-40°C to +85°C
5 SOT23
+ADPI
MAX4470EXK+T
-40°C to +85°C
5 SC70
MAX4470EUK+T
-40°C to +85°C
5 SOT23
MAX4470EWT+
-40°C to +85°C
6 WLP
MAX4471EKA+T
-40°C to +85°C
8 SOT23
MAX4471ESA+
-40°C to +85°C
8 SO
—
MAX4472EUD+
-40°C to +85°C
14 TSSOP
—
MAX4472ESD+
-40°C to +85°C
14 SO
MAX4474EKA+T
-40°C to +85°C
8 SOT23
+AAEL
MAX4474EUA+
-40°C to +85°C
8 µMAX
—
+ABS
+ADPH
+BP
+AAEK
—
-40°C to +85°C 8 SO
MAX4474ESA+
+Denotes a lead(Pb)-free/RoHS-compliant package.
—
Selector Guide
PART
NO. OF
AMPLIFIERS
GAINBANDWIDTH
MAX4464
1
40kHz
5V/V
MAX4470
1
9kHz
1V/V
MAX4471
2
9kHz
1V/V
MAX4472
4
9kHz
1V/V
MAX4474
2
40kHz
5V/V
MINIMUM
STABLE GAIN
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
General Description
The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
family of micropower op amps operate from a single
+1.8V to +5.5V supply and draw only 750nA of supply
current. The MAX4470 family feature ground-sensing
inputs and rail-to-rail output. The ultra-low supply current, low-operating voltage, and rail-to-rail output capabilities make these operational amplifiers ideal for use
in single lithium ion (Li+), or two-cell NiCd or alkaline
battery systems.
The rail-to-rail output stage of the MAX4464/MAX4470/
MAX4471/MAX4472/MAX4474 amplifiers is capable of
driving the output voltage to within 4mV of the rail with a
100kΩ load, and can sink and source 11mA with a +5V
supply. These amplifiers are available in both fully compensated and decompensated versions. The single
MAX4470, dual MAX4471, and the quad MAX4472 are
unity-gain stable. The single MAX4464 and the dual
MAX4474 are stable for closed-loop gain configurations
of ≥ +5V/V. These amplifiers are available in space-saving WLP, SC70, SOT23, µMAX®, and TSSOP packages.
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
ABSOLUTE MAXIMUM RATINGS
VDD to VSS ...............................................................-0.3V to +6V
IN_+ or IN_-......................................(VSS - 0.3V) to (VDD + 0.3V)
OUT_ Shorted to VSS or VDD ......................................Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)...................247mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C).................571mW
6-Bump WLP (derate 10.5mW/°C above +70°C) .............840mW
8-Pin SOT23 (derate 8.9mW/°C above +70°C).................714mW
8-Pin µMAX (derate 4.5mW/°C above +70°C) ..................362mW
8-Pin SO (derate 5.88mW/°C above +70°C)....................471mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ...........727mW
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
Operating Temperature Range ......................... -40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Soldering Temperature (reflow) ......................................+260°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.
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ to VDD/2, TA = +25°C, unless otherwise noted.)
PARAMETER
Supply Voltage Range
SYMBOL
VDD
CONDITIONS
Guaranteed by PSRR tests
MIN
TYP
1.8
VDD = +1.8V
0.6
VDD = +5.0V
0.75
MAX
UNITS
5.5
V
Supply Current (Per
Amplifier)
IDD
Input Offset Voltage
VOS
±0.5
±7.0
mV
IB
±200
±1500
pA
IOS
±12.5
Input Bias Current
Input Offset Current
Input Common-Mode
Voltage Range
VCM
Guaranteed by the CMRR test
VSS
1.2
µA
pA
VDD 1.1
V
Common-Mode Rejection
Ratio
CMRR
Specified with VSS ≤ VCM ≤ (VDD - 1.1V)
70
95
dB
Power-Supply Rejection
Ratio
PSRR
+1.8V ≤ VDD ≤ +5.5V
70
90
dB
RL = 1MΩ, VOUT = 50mV to VDD - 50mV
90
120
Large-Signal Voltage Gain
AVOL
RL = 100kΩ, VOUT = 200mV to VDD - 200mV
90
112
RL = 10kΩ, VOUT = 200mV to VDD - 200mV
VOH
Gain-Bandwidth Product
Phase Margin
2
GBW
φM
100
Swing high
specified as
VDD - VOH
RL = 1MΩ
1
4
RL = 100kΩ
4
10
RL = 10kΩ
40
Swing low
specified as
VOL - VSS
RL = 1MΩ
0.5
5
RL = 100kΩ
1
5
RL = 10kΩ
10
Output Voltage Swing
VOL
dB
MAX4470/MAX4471/MAX4472
9
MAX4464/MAX4474
40
MAX4470/MAX4471/MAX4472
90
MAX4464/MAX4474
80
_______________________________________________________________________________________
mV
kHz
degrees
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ to VDD/2, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
Slew Rate
SR
Input Voltage Noise
en
Output Short-Circuit
Current
Power-On Time
Power-Off Time
tON
tOFF
Capacitive Load
CLOAD
CONDITIONS
VOUT =
4V step
MIN
TYP
MAX4470/MAX4471/MAX4472
2
MAX4464/MAX4474
20
f = 1kHz
150
f = 10kHz
120
Shorted to VSS (sourcing)
11
Shorted to VDD (sinking)
36
MAX
V/ms
nV/√Hz
mA
3
ms
µs
2
No sustained oscillations
UNITS
250
pF
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ to VDD/2, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage Range
VDD
Guaranteed by PSRR tests
Supply Current (Per
Amplifier)
IDD
VDD = +5.0V
Input Offset Voltage
VOS
Input Offset Voltage
Temperature Coefficient
Input Bias Current
MIN
VCM
Common-Mode Rejection
Ratio
CMRR
Power-Supply Rejection
Ratio
PSRR
Large-Signal Voltage Gain
AVOL
MAX
UNITS
5.5
V
1.5
µA
±15
mV
8
TCVOS
IB
Input Common-Mode
Voltage Range
TYP
1.8
Guaranteed by the CMRR test
VSS
VSS ≤ VCM ≤ (VDD - 1.1V)
56
+1.8V ≤ VDD ≤ +5.5V, 0oC ≤ TA ≤ +85oC
65
+2V ≤ VDD ≤ +5.5V, -40oC ≤ TA ≤ +85oC
65
VOUT = 50mV to VDD - 50mV, RL = 1MΩ
75
VOUT = 200mV to VDD - 200mV, RL = 100kΩ
75
µV/°C
4.25
nA
VDD 1.1
V
dB
dB
dB
VOH
Swing high specified
as VDD - VOH
RL = 1MΩ
5
RL = 100kΩ
15
VOL
Swing low specified as
VOL - VSS
RL = 1MΩ
5
RL = 100kΩ
5
Output Voltage Swing
mV
Note 1: All devices are production tested at TA = +25°C. All temperature limits are guaranteed by design.
_______________________________________________________________________________________
3
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.)
0.6
0.5
0.4
0.3
0.6
0.5
0.4
0.3
0.40
0.35
0.30
0.25
0.20
0.15
0.2
0.10
0.1
0.1
0.05
0
0
0
-50
-25
0
25
50
75
-50
100
-25
0
25
50
75
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
OFFSET VOLTAGE
vs. COMMON-MODE VOLTAGE
INPUT BIAS CURRENT vs.
TEMPERATURE
INPUT BIAS CURRENT vs.
COMMON-MODE VOLTAGE
0.35
0.30
0.25
0.20
0.15
0.10
-100
-150
-200
-250
-300
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-30
-40
-50
-60
-80
-90
-400
0
-20
-70
-350
0.05
-50
-25
0
25
50
75
0
100
0.5
1.0
1.5
2.0
2.5
3.0
3.5
COMMON-MODE VOLTAGE (V)
TEMPERATURE (°C)
COMMON-MODE VOLTAGE (V)
POWER-SUPPLY REJECTION RATIO vs.
FREQUENCY
OUTPUT VOLTAGE SWING LOW vs.
TEMPERATURE
OUTPUT VOLTAGE SWING HIGH vs.
TEMPERATURE
1.4
RL = 100kΩ
1.2
VOL - VSS (mV)
-30
-40
-50
-60
1.0
0.8
0.6
-70
0.4
-80
RL = 1MΩ
10
100
1k
FREQUENCY (Hz)
10k
3
2
RL = 1MΩ
0
0
-100
RL = 100kΩ
4
1
0.2
-90
5
VDD - VOH (mV)
-20
6
4.0
MAX4470–74 toc09
1.6
MAX4470–74 toc07
0
-10
100
MAX4470–74 toc06
-50
0
-10
INPUT BIAS CURRENT (pA)
0.40
0
MAX4470–74 toc05
0.45
INPUT BIAS CURRENT (pA)
MAX4470-74 toc04
0.50
4
0.45
0.2
0
MAX4470–74 toc03
0.7
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
OFFSET VOLTAGE (mV)
MAX4470–74 toc02
0.7
0.8
0.50
MAX4470–74 toc08
SUPPLY CURRENT (µA)
0.8
0.9
SUPPLY CURRENT (µA)
MAX4470–74 toc01
0.9
OFFSET VOLTAGE vs.
TEMPERATURE
SUPPLY CURRENT PER AMPLIFIER vs.
TEMPERATURE
OFFSET VOLTAGE (mV)
SUPPLY CURRENT PER AMPLIFIER vs.
SUPPLY VOLTAGE
PSRR (dB)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
-50
-25
0
25
50
TEMPERATURE (°C)
75
100
-50
-25
0
25
50
TEMPERATURE (°C)
_______________________________________________________________________________________
75
100
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
-70
-80
-90
-100
0.8
0.6
0
25
50
75
70
60
-50
100
-25
0
CL = 12pF
RL = 1MΩ
AVCL = 1000V/V
GAIN
180
135
0
GAIN (dB)
90
45
-45
PHASE
-90
10
100
1k
50
75
2.5
100
10k
-135
100k
5.0
0
-80
-100
-45
PHASE
-120
RL = 1MΩ
AVCL = 1000V/V
CL = 250pF
-90
100
1k
10k
-140
-135
100k
10
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4470/MAX4471/MAX4472
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
VOLTAGE NOISE DENSITY vs.
FREQUENCY
MAX4470/MAX4471/MAX4472 STABILITY
vs. CAPACITIVE AND RESISTIVE LOADS
0.10
CAPACITIVE LOAD (pF)
NOISE (nV/√Hz)
1.00
1k
100
10
0.01
100
1k
FREQUENCY (Hz)
10k
MAX4470–74 toc18
100k
MAX4470–74 toc17
10k
MAX4470–74 toc16
10.00
10
4.5
-60
90
45
10
4.0
-40
180
135
GAIN
1
3.5
CROSSTALK vs. FREQUENCY
MAX4470–74 toc14
80
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
3.0
OUTPUT VOLTAGE (Vp-p)
MAX4470/MAX4471/MAX4472
GAIN AND PHASE vs. FREQUENCY
MAX4470–74 toc13
PHASE (deg)
GAIN (dB)
MAX4470/MAX4471/MAX4472
GAIN AND PHASE vs. FREQUENCY
1
25
TEMPERATURE (°C)
TEMPERATURE (°C)
80
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
RL = 10kΩ
100
MAX4470 toc15
-25
110
80
CROSSTALK (dB)
-50
RL = 100kΩ
90
0.4
0
-120
RL = 1MΩ
120
1.0
0.2
-110
THD + N (%)
130
AVOL (dB)
-60
1.2
PHASE (deg)
CMRR (dB)
-50
140
MAX4470-74 toc11
-40
MINIMUM SUPPLY VOLTAGE (V)
-30
AVOL vs. OUTPUT VOLTAGE SWING
1.4
MAX4470–74 toc10
-20
MINIMUM SUPPLY VOLTAGE
vs. TEMPERATURE
MAX4470-74 toc12
COMMON-MODE REJECTION RATIO vs.
TEMPERATURE
10k
UNSTABLE
REGION
1k
100
10
100
1k
FREQUENCY (Hz)
10k
100k
10k
100k
1M
RESISTIVE LOAD (Ω)
_______________________________________________________________________________________
5
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.)
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL STEP RESPONSE
IOUT vs. VOUT
MAX4470–74 toc19
36
ISINK
32
28
IOUT (mA)
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL STEP RESPONSE
MAX4470 toc20
40
MAX4470 toc21
VDD = +5V
AV = +1V/V
RL = 1MΩ
CL = 12pF
INPUT
500mV/div
VDD = +5V
AV = +1V/V
RL = 1MΩ
CL = 250pF
INPUT
50mV/div
24
20
16
12
OUTPUT
500mV/div
ISOURCE
OUTPUT
50mV/div
8
4
0
0
1
2
3
4
500µs/div
500µs/div
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL STEP RESPONSE
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL STEP RESPONSE
5
VOUT (V)
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL STEP RESPONSE
MAX4470 toc22
VDD = +5V
AV = +1V/V
RL = 1MΩ
CL = 12pF
INPUT
500mV/div
OUTPUT
50mV/div
VDD = +5V
AV = +1V/V
RL = 1MΩ
CL = 1000pF
INPUT
500mV/div
OUTPUT
500mV/div
OUTPUT
500mV/div
500µs/div
500µs/div
500µs/div
MAX4470/MAX4471/MAX4472
PERCENT OVERSHOOT vs. CAPACITIVE LOAD
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL GAIN vs. FREQUENCY
GAIN (dB)
20
RL = 100kΩ
15
10
-2
-3
-4
RL = 10kΩ
5
0
50
100
150
CLOAD (pF)
200
250
300
AV = 1
-1
-2
-3
-4
-5
-5
-6
-6
-7
0
1
0
AV = 1
-1
MAX4470–74 toc27
1
0
RL = 100kΩ
VOUT = 100mVP-P
CL = 12pF
2
GAIN (dB)
RL = 1MΩ
RL = 10kΩ
VOUT = 100mVP-P
CL = 12pF
2
3
MAX4470–74 toc26
25
3
MAX4470–74 toc25
30
6
MAX4470 toc24
MAX4470 toc23
VDD = +5V
AV = +1V/V
RL = 1MΩ
CL = 1000pF
INPUT
50mV/div
PERCENT OVERSHOOT (%)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
-7
100
1k
FREQUENCY (Hz)
10k
100
1k
10k
FREQUENCY (Hz)
_______________________________________________________________________________________
100k
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
-3
-2
-3
-3
-4
-5
-5
-5
-6
-6
-6
-7
-7
10k
1k
100
10k
1k
10k
FREQUENCY (Hz)
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4464/MAX4474
GAIN AND PHASE vs. FREQUENCY
MAX4464/MAX4474
GAIN AND PHASE vs. FREQUENCY
GAIN (dB)
-1
-2
-3
-4
-5
-6
-7
100
1k
RL =1MΩ
CL = 8pF
AVCL = 1000V/V
90
45
PHASE
0
-45
-90
10
100
1k
10k
-135
100k
100,000
CAPACITIVE LOAD (pF)
0
PHASE
-45
-90
10
100
1k
10k
-135
100k
MAX4464/MAX4474
SMALL-SIGNAL STEP RESPONSE
MAX4464 toc35
MAX4464 toc34
0.01
45
FREQUENCY (Hz)
1
0.1
90
GAIN
1
MAX4464/MAX4474
STABILITY vs. CAPACITIVE
AND RESISTIVE LOADS
MAX4464/MAX4474
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4464 toc33
180
RL =1MΩ
CL = 250pF
135
AVCL = 1000V/V
80
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
FREQUENCY (Hz)
FREQUENCY (Hz)
10
135
GAIN
1
10k
180
GAIN (dB)
0
MAX4464 toc32
80
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
PHASE (degrees)
AV = 1
MAX4470–74 toc31
1
-7
100
FREQUENCY (Hz)
RL = 1MΩ
VOUT = 1VP-P
CL = 12pF
2
100k
FREQUENCY (Hz)
3
THD + N (%)
-1
-4
1k
AV = 1
-2
-4
100
GAIN (dB)
AV = 1
-1
GAIN (dB)
-2
1
0
PHASE (degrees)
AV = 1
-1
GAIN (dB)
1
0
10,000
VDD = +5V
AV = +5V/V
RL = 1MΩ
CL = 8pF
INPUT
10mV/div
MAX4464 toc36
0
RL = 100kΩ
VOUT = 1VP-P
CL = 12pF
2
GAIN (dB)
1
RL = 10kΩ
VOUT = 1VP-P
CL = 12pF
2
3
MAX4470–74 toc29
RL = 1MΩ
VOUT = 100mVP-P
CL = 12pF
2
3
MAX4470–74toc28
3
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4470–74 toc30
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL GAIN vs. FREQUENCY
UNSTABLE
REGION
1000
OUTPUT
50mV/div
100
0.001
10
100
1k
FREQUENCY (Hz)
10k
10k
100k
1M
500µs/div
RESISTIVE LOAD (Ω)
_______________________________________________________________________________________
7
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.)
INPUT
10mV/div
INPUT
100mV/div
OUTPUT
500mV/div
OUTPUT
50mV/div
OUTPUT
50mV/div
VDD = +5V
AV = +5V/V
RL = 1MΩ
CL = 8pF
500µs/div
500µs/div
500µs/div
MAX4464/MAX4474
PERCENT OVERSHOOT vs. CAPACITIVE LOAD
MAX4464/MAX4474
LARGE-SIGNAL STEP RESPONSE
OUTPUT
500mV/div
MAX4464 toc41
25
PERCENT OVERSHOOT (%)
INPUT
100mV/div
30
MAX4464 toc40
VDD = +5V
AV = +5V/V
RL = 1MΩ
CL = 1000pF
RL = 1MΩ
20
RL = 100kΩ
15
RL = 10kΩ
10
5
0
500µs/div
0
50
100
150
200
250
300
CLOAD (pF)
MAX4464/MAX4474
SMALL-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
1
RL = 10kΩ
VOUT = 100mVP-P
CL = 12pF
0
1
GAIN (dB)
-1
-2
-3
-2
-3
-4
-5
-5
-6
-6
-7
-7
10k
FREQUENCY (Hz)
100k
AV = +5
-1
-4
1k
RL = 100kΩ
VOUT = 100mVP-P
CL = 12pF
0
AV = +5
100
8
2
MAX4464 toc43
2
3
MAX4464 toc42
3
MAX4464/MAX4474
SMALL-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
100
1k
10k
FREQUENCY (Hz)
_______________________________________________________________________________________
100k
MAX4464 toc39
VDD = +5V
AV = +5V/V
RL = 1MΩ
CL = 1000pF
MAX4464 toc38
VDD = +5V
AV = +5V/V
RL = 1MΩ
CL = 250pF
INPUT
10mV/div
MAX4464/MAX4474
LARGE-SIGNAL STEP RESPONSE
MAX4464/MAX4474
SMALL-SIGNAL STEP RESPONSE
MAX4464 toc37
MAX4464/MAX4474
SMALL-SIGNAL STEP RESPONSE
GAIN (dB)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
MAX4464/MAX4474
SMALL-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
1
1
-2
-3
-3
-4
-5
-6
-6
-7
100
1k
10k
100k
1k
10k
MAX4464/MAX4474
LARGE-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
MAX4464/MAX4474
LARGE-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
RL = 100kΩ
VOUT = 1VP-P
CL = 12pF
3
2
1
0
RL = 1MΩ
VOUT = 1VP-P
CL = 12pF
0
GAIN (dB)
AV = +5
-1
-2
-3
AV = +5
-1
-2
-3
-4
-4
-5
-5
-6
-6
-7
100k
MAX4464 toc47
FREQUENCY (Hz)
MAX4464 toc46
1
100
FREQUENCY (Hz)
3
GAIN (dB)
-2
-5
-7
AV = +5
-1
-4
2
RL = 10kΩ
VOUT = 1VP-P
CL = 12pF
0
AV = +5
-1
GAIN (dB)
GAIN (dB)
0
2
MAX4464 toc45
RL = 1MΩ
VOUT = 100mVP-P
CL = 12pF
2
3
MAX4464 toc44
3
MAX4464/MAX4474
LARGE-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
-7
100
1k
10k
100k
100
FREQUENCY (Hz)
1k
10k
100k
FREQUENCY (Hz)
Pin Description
PIN
NAME
MAX4464/
MAX4470
MAX4470
(WLP)
MAX4471/
MAX4474
MAX4472
1
A1
—
—
IN+
FUNCTION
Noninverting Amplifier Input
—
—
3
3
INA+
2
A2
4
11
VSS
Negative Power-Supply Voltage
3
B1
—
—
IN-
Inverting Amplifier Input
4
C1
—
—
OUT
Amplifier Output
—
—
2
2
INA-
Inverting Amplifier Input (Channel A)
Noninverting Amplifier Input (Channel A)
_______________________________________________________________________________________
9
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = 0V, RL = 100kΩ to VDD/2, TA = +25°C, unless otherwise noted.)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Pin Description (continued)
PIN
NAME
FUNCTION
MAX4464/
MAX4470
MAX4470
(WLP)
MAX4471/
MAX4474
MAX4472
—
—
1
1
—
—
6
6
INB-
Inverting Amplifier Input (Channel B)
—
—
5
5
INB+
Noninverting Amplifier Input (Channel B)
—
—
7
7
OUTB
Amplifier Output (Channel B)
—
—
—
9
INC-
Inverting Amplifier Input (Channel C)
—
—
—
10
INC+
Noninverting Amplifier Input (Channel C)
—
—
—
8
OUTC
Amplifier Output (Channel C)
—
—
—
13
IND-
Inverting Amplifier Input (Channel D)
—
—
—
12
IND+
Noninverting Amplifier Input (Channel D)
—
—
—
14
OUTD
Amplifier Output (Channel D)
OUTA
Amplifier Output (Channel A)
5
B2
8
4
VDD
Positive Power-Supply Voltage
—
C2
—
—
N.C.
No Connection. Not internally connected.
Applications Information
Ground Sensing
The common-mode input range of the MAX4470 family
extends down to ground, and offers excellent commonmode rejection. These devices are guaranteed not to
undergo phase reversal when the input is overdriven.
Power Supplies and Layout
The MAX4470 family operates from a single +1.8V to
+5.5V power supply. Bypass power supplies with a
0.1µF ceramic capacitor placed close to the VDD pin.
Ground layout improves performance by decreasing the
amount of stray capacitance and noise at the op amp’s
inputs and outputs. To decrease stray capacitance, minimize PC board lengths and resistor leads, and place
external components close to the op amps’ pins.
Stability
The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
maintain stability in their minimum gain configuration
while driving capacitive loads. Although this product
family is primarily designed for low-frequency applications, good layout is extremely important because lowpower requirements demand high-impedance circuits.
The layout should also minimize stray capacitance at the
amplifier inputs. However some stray capacitance may
be unavoidable, and it may be necessary to add a 2pF
to 10pF capacitor across the feedback resistor as shown
in Figure 1. Select the smallest capacitor value that
ensures stability.
VCC
VIN
Bandwidth
The MAX4470/MAX4471/MAX4472 are internally
compensated for unity-gain stability and have a typical
gain-bandwidth of 9kHz. The MAX4464/MAX4474 have
a 40kHz typical gain-bandwidth and are stable for a
gain of +5V/V or greater.
MAX44_ _
VSS
R2
R1
2pF TO 10pF
Figure 1. Compensation for Feedback Node Capacitance
10
______________________________________________________________________________________
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
TOP VIEW
+
+
IN+
MAX4470
MAX4464
1
5
+
MAX4471
MAX4474
VDD
OUTA 1
8
VDD
INA- 2
7
OUTB
INA+
6
INB-
VSS 2
IN- 3
4
OUT
3
SC70/SOT23
INA-
2
13 IND-
INA+
3
12 IND+
VDD 4
VSS 4
14 OUTD
OUTA 1
5
MAX4472
11 VSS
INB+
INB+ 5
10 INC+
INB- 6
9
INC-
OUTB 7
8
OUTC
SOT23/µMAX/SO
SO/TSSOP
Chip Information
PROCESS: BiCMOS
______________________________________________________________________________________
11
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Pin Configurations (continued)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Package Information
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
12
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
LAND PATTERN NO.
5 SC70
X5+1
21-0076
90-0188
5 SOT23
6 WLP
8 µMAX
8 SOT23
8 SOIC
14 SOIC
14 TSSOP
U5+1
W61B1+1
U8+1
K8+5
S8+2
S14+1
U14+1
21-0057
90-0174
21-0217
Refer to Application Note 1891
21-0036
90-0092
21-0078
90-0176
21-0041
90-0096
21-0041
90-0096
21-0066
90-0117
______________________________________________________________________________________
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
______________________________________________________________________________________
13
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Package Information (continued)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
14
______________________________________________________________________________________
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
D
D
______________________________________________________________________________________
15
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Package Information (continued)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
MARKING
0
0
PACKAGE OUTLINE, SOT-23, 8L BODY
21-0078
16
______________________________________________________________________________________
J
1
1
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
______________________________________________________________________________________
17
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Package Information (continued)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.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.
18
______________________________________________________________________________________
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
REVISION
NUMBER
REVISION
DATE
3
6/10
Added WLP package
4
7/11
Updated power-on time specification
DESCRIPTION
PAGES
CHANGED
1, 2, 9, 10, 11
3
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19
© 2011 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Revision History
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