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MAX4472
Technical data
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MAXIM MAX4464, MAX4470, MAX4471, MAX4472, MAX4474 Technical data

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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.
Applications
Features
o Ultra-Low 750nA Supply Current Per Amplifier o Ultra-Low +1.8V Supply Voltage Operation o Ground-Sensing Input Common-Mode Range o Outputs Swing Rail-to-Rail o Outputs Source and Sink 11mA of Load Current o No Phase Reversal for Overdriven Inputs o 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
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
________________________________________________________________
Maxim Integrated Products
1
Pin Configurations
PART
NO. OF
GAIN-
MINIMUM
STABLE GAIN
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
19-2021; Rev 4; 7/11
Ordering Information
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations continued at end of data sheet.
Selector Guide
Battery-Powered Systems
Portable Instrumentation
Pagers and Cellphones
Micropower Thermostats
Electrometer Amplifiers
Solar-Powered Systems
Remote Sensor Active Badges
pH Meters
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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
MAX4470
+
IN+ V
IN- V
B1 B2
OUT N.C.
C1 C2
WLP BUMP
SIDE DOWN
SS
A2A1
DD
PART
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 +ABS
MAX4470EUK+T -40°C to +85°C 5 SOT23 +ADPH
MAX4470EWT+ -40°C to +85°C 6 WLP +BP
MAX4471EKA+T -40°C to +85°C 8 SOT23 +AAEK
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 —
MAX4474ESA+
TEMP
RANGE
-40°C to +85°C
PIN­PACKAGE
8 SO —
TOP
MARK
AMPLIFIERS
BANDWIDTH
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD= +5V, VSS= 0V, VCM= 0V, V
OUT
= VDD/2, RL= ∞ to VDD/2, TA= +25°C, unless otherwise noted.)
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.
VDDto VSS...............................................................-0.3V to +6V
IN_+ or IN_-......................................(V
SS
- 0.3V) to (VDD+ 0.3V)
OUT_ Shorted to V
SS
or VDD......................................Continuous
Continuous Power Dissipation (T
A
= +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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
Supply Current (Per Amplifier)
Input Offset Voltage V
Input Bias Current I
Input Offset Current I
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Large-Signal Voltage Gain A
Output Voltage Swing
Gain-Bandwidth Product GBW
Phase Margin φ
DD
I
DD
OS
B
OS
V
CM
CMRR Specified with V
PSRR +1.8V ≤ V
VOL
OH
V
OL
Guaranteed by PSRR tests 1.8 5.5 V
V
= +1.8V 0.6
DD
V
= +5.0V 0.75 1.2
DD
Guaranteed by the CMRR test V
SS
≤ +5.5V 70 90 dB
DD
= 1MΩ, V
R
L
R
= 100kΩ, V
L
R
= 10kΩ, V
L
Swing high specified as V
- V
DD
OH
Swing low specified as V
- V
OL
SS
= 50mV to VDD - 50mV 90 120
OUT
OUT
= 200mV to V
OUT
R
L
RL = 100kΩ 410V
RL = 10kΩ 40
R
L
R
L
R
L
MAX4470/MAX4471/MAX4472 9
MAX4464/MAX4474 40
M
MAX4470/MAX4471/MAX4472 90
MAX4464/MAX4474 80
±0.5 ±7.0 mV
±200 ±1500 pA
±12.5 pA
V
-
DD
SS
≤ V
≤ (V
CM
= 200mV to V
= 1MΩ 14
= 1MΩ 0.5 5 = 100kΩ 15 = 10kΩ 10
- 1.1V) 70 95 dB
DD
- 200mV 90 112
DD
- 200mV 100
DD
1.1
d eg r ees
µA
V
dB
mV
kHz
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
_______________________________________________________________________________________ 3
Note 1: All devices are production tested at TA= +25°C. All temperature limits are guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(VDD= +5V, VSS= 0V, VCM= 0V, V
OUT
= VDD/2, RL= ∞ to VDD/2, TA= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS
(VDD= +5V, VSS= 0V, VCM= 0V, V
OUT
= VDD/2, RL= ∞ to VDD/2, TA= T
MIN
to T
MAX
, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Slew Rate SR
Input Voltage Noise e
Output Short-Circuit Current
Power-On Time t
Power-Off Time
Capacitive Load
MAX4470/MAX4471/MAX4472 2
=
MAX4464/MAX4474 20
(sourcing) 11
SS
(sinking) 36
DD
t
C
n
ON
OFF
LOAD
V
OUT
4V step
f = 1kHz 150
f = 10kHz 120
Shorted to V
Shorted to V
No sustained oscillations
3ms
2
250 pF
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
Supply Current (Per Amplifier)
Input Offset Voltage V
Input Offset Voltage Temperature Coefficient
Input Bias Current I
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Large-Signal Voltage Gain A
Output Voltage Swing
DD
I
DD
OS
TCV
V
CM
CMRR V
PSRR
VOL
V
OH
V
OL
Guaranteed by PSRR tests 1.8 5.5 V
VDD = +5.0V 1.5 µA
OS
B
Guaranteed by the CMRR test V
≤ V
SS
CM
+1.8V ≤ VDD ≤ +5.5V, 0oC ≤ TA ≤ +85oC65
+2V ≤ V
V
OUT
V
OUT
≤ +5.5V, -40oC ≤ TA ≤ +85oC65
DD
= 50mV to V
= 200mV to V
Swing high specified
- V
as V
DD
OH R
Swing low specified as
- V
V
OL
SS R
8 µV/°C
SS
≤ (V
- 1.1V) 56 dB
DD
- 50mV, RL = 1MΩ 75
DD
- 200mV, RL = 100kΩ 75
DD
R
= 1MΩ 5
L
= 100kΩ 15
L
RL = 1MΩ 5
= 100kΩ 5
L
V/ms
nV /√Hz
mA
±15 mV
4.25 nA
V
-
DD
1.1
mV
µs
V
dB
dB
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
4 _______________________________________________________________________________________
Typical Operating Characteristics
(VDD= +5V, VSS= 0V, VCM= 0V, RL= 100kΩ to VDD/2, TA= +25°C, unless otherwise noted.)
0
0.2
0.1
0.5
0.4
0.3
0.7
0.8
0.6
0.9
1.5 3.0 3.52.0 2.5 4.0 4.5 5.0 5.5 6.0
SUPPLY CURRENT PER AMPLIFIER vs.
SUPPLY VOLTAGE
MAX4470–74 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
0
0.2
0.1
0.5
0.4
0.3
0.7
0.8
0.6
0.9
-50 0-25 25 50 75 100
SUPPLY CURRENT PER AMPLIFIER vs.
TEMPERATURE
MAX4470–74 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
0
0.10
0.05
0.30
0.20
0.25
0.15
0.40
0.45
0.35
0.50
-50 0-25 25 50 75 100
OFFSET VOLTAGE vs.
TEMPERATURE
MAX4470–74 toc03
TEMPERATURE (°C)
OFFSET VOLTAGE (mV)
0
0.10
0.05
0.20
0.15
0.30
0.25
0.35
0.45
0.40
0.50
0 1.0 1.50.5 2.0 2.5 3.0 3.5 4.0
OFFSET VOLTAGE
vs. COMMON-MODE VOLTAGE
MAX4470-74 toc04
COMMON-MODE VOLTAGE (V)
OFFSET VOLTAGE (mV)
-400
-350
-150
-250
-200
-300
-50
-100
0
-50 0-25 25 50 75 100
INPUT BIAS CURRENT vs.
TEMPERATURE
MAX4470–74 toc05
TEMPERATURE (°C)
INPUT BIAS CURRENT (pA)
-90
-70
-80
-40
-50
-60
-20
-10
-30
0
01.51.00.5 2.0 2.5 3.0 3.5 4.0
INPUT BIAS CURRENT vs.
COMMON-MODE VOLTAGE
MAX4470–74 toc06
COMMON-MODE VOLTAGE (V)
INPUT BIAS CURRENT (pA)
0
-100 10 100 10k1k
POWER-SUPPLY REJECTION RATIO vs.
FREQUENCY
-80
-90
MAX4470–74 toc07
FREQUENCY (Hz)
PSRR (dB)
-60
-70
-40
-30
-50
-20
-10
0
0.2
1.0
0.6
0.8
0.4
1.4
1.2
1.6
-50 0-25 25 50 75 100
OUTPUT VOLTAGE SWING LOW vs.
TEMPERATURE
MAX4470–74 toc08
TEMPERATURE (°C)
V
OL
- V
SS
(mV)
RL = 100k
Ω
RL = 1MΩ
0
1
4
2
3
5
6
-50 0-25 25 50 75 100
OUTPUT VOLTAGE SWING HIGH vs.
TEMPERATURE
MAX4470–74 toc09
TEMPERATURE (°C)
V
DD
- V
OH
(mV)
RL = 100k
Ω
RL = 1MΩ
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
_______________________________________________________________________________________
5
Typical Operating Characteristics (continued)
(VDD= +5V, VSS= 0V, VCM= 0V, RL= 100kΩ to VDD/2, TA= +25°C, unless otherwise noted.)
COMMON-MODE REJECTION RATIO vs.
TEMPERATURE
-20
-30
-40
-50
-60
-70
CMRR (dB)
-80
-90
-100
-110
-120
-50 0-25 25 50 75 100 TEMPERATURE (°C)
MAX4470/MAX4471/MAX4472
GAIN AND PHASE vs. FREQUENCY
80 70 60
50 40 30 20 10
GAIN (dB)
0
-10
-20
-30
-40
-50
-60 1 100 1k 10k10 100k
FREQUENCY (Hz)
GAIN
PHASE
A
VCL
MAX4470/MAX4471/MAX4472
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
10.00
MAX4470–74 toc13
CL = 12pF
= 1M
R
L
= 1000V/V
Ω
MAX4470–74 toc10
180
135
90
45
0
-45
-90
-135
1.4
1.2
1.0
0.8
0.6
0.4
MINIMUM SUPPLY VOLTAGE (V)
0.2
GAIN (dB)
PHASE (deg)
-10
-20
-30
-40
-50
-60
10k
MINIMUM SUPPLY VOLTAGE
vs. TEMPERATURE
0
-50 0 25-25 50 75 100 TEMPERATURE (°C)
MAX4470/MAX4471/MAX4472
GAIN AND PHASE vs. FREQUENCY
80 70 60
50 40 30 20 10
0
RL = 1M
Ω
A
= 1000V/V
VCL
= 250pF
C
L
1 100 1k 10k10 100k
GAIN
PHASE
FREQUENCY (Hz)
MAX4470–74 toc14
VOLTAGE NOISE DENSITY vs.
FREQUENCY
MAX4470-74 toc11
180
135
90
45
0
-45
-90
-135
140
130
120
110
(dB)
100
VOL
A
-40
-60
-80
-100
PHASE (deg)
CROSSTALK (dB)
-120
-140
100k
A
vs. OUTPUT VOLTAGE SWING
VOL
RL = 1M
RL = 100k
RL = 10k
Ω
90
80
70
60
2.5 3.0 3.5 4.0 4.5 5.0 OUTPUT VOLTAGE (Vp-p)
CROSSTALK vs. FREQUENCY
10 100 1k 10k 100k
FREQUENCY (Hz)
MAX4470/MAX4471/MAX4472 STABILITY
vs. CAPACITIVE AND RESISTIVE LOADS
Ω
MAX4470-74 toc12
Ω
MAX4470 toc15
1.00
THD + N (%)
0.10
0.01 10 100 10k1k
MAX4470–74 toc17
10k
UNSTABLE REGION
1k
CAPACITIVE LOAD (pF)
100
10k 100k 1M
RESISTIVE LOAD (Ω)
FREQUENCY (Hz)
MAX4470–74 toc16
1k
NOISE (nV/√Hz)
100
10
10 1k100 100k10k
FREQUENCY (Hz)
MAX4470–74 toc18
500µs/div
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL STEP RESPONSE
INPUT
50mV/div
OUTPUT
50mV/div
MAX4470 toc21
VDD = +5V A
V
= +1V/V
R
L
= 1MΩ
C
L
= 250pF
500µs/div
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL STEP RESPONSE
INPUT
50mV/div
OUTPUT
50mV/div
MAX4470 toc22
VDD = +5V A
V
= +1V/V
R
L
= 1MΩ
C
L
= 1000pF
500µs/div
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL STEP RESPONSE
VDD = +5V A
V
= +1V/V
R
L
= 1MΩ
C
L
= 12pF
INPUT
500mV/div
OUTPUT
500mV/div
MAX4470 toc23
500µs/div
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL STEP RESPONSE
INPUT
500mV/div
OUTPUT
500mV/div
MAX4470 toc24
VDD = +5V A
V
= +1V/V
R
L
= 1MΩ
C
L
= 1000pF
0
5
20
10
15
25
30
010050 150 200 250 300
MAX4470/MAX4471/MAX4472
PERCENT OVERSHOOT vs. CAPACITIVE LOAD
MAX4470–74 toc25
C
LOAD
(pF)
PERCENT OVERSHOOT (%)
RL = 10kΩ
R
L
= 100kΩ
RL = 1MΩ
3
-7 100 1k 10k
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL GAIN vs. FREQUENCY
-5
-6
MAX4470–74 toc26
FREQUENCY (Hz)
GAIN (dB)
-3
-4
-1
0
-2
1
2
RL = 10kΩ V
OUT
= 100mV
P-P
CL = 12pF
AV = 1
3
-7 100 1k 100k10k
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL GAIN vs. FREQUENCY
-5
-6
MAX4470–74 toc27
FREQUENCY (Hz)
GAIN (dB)
-3
-4
-1
0
-2
1
2
AV = 1
RL = 100kΩ V
OUT
= 100mV
P-P
CL = 12pF
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD= +5V, VSS= 0V, VCM= 0V, RL= 100kΩ to VDD/2, TA= +25°C, unless otherwise noted.)
I
vs. V
OUT
I
SINK
OUT
I
SOURCE
V
(V)
OUT
40
36
32
28
24
(mA)
20
OUT
I
16
12
8
4
0
021345
INPUT
MAX4470–74 toc19
500mV/div
OUTPUT
500mV/div
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL STEP RESPONSE
500µs/div
MAX4470 toc20
VDD = +5V
= +1V/V
A
V
= 1MΩ
R
L
= 12pF
C
L
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
_______________________________________________________________________________________
7
Typical Operating Characteristics (continued)
(VDD= +5V, VSS= 0V, VCM= 0V, RL= 100kΩ to VDD/2, TA= +25°C, unless otherwise noted.)
3
-7 100 1k 10k 100k
MAX4470/MAX4471/MAX4472
SMALL-SIGNAL GAIN vs. FREQUENCY
-5
MAX4470–74toc28
FREQUENCY (Hz)
GAIN (dB)
-3
-1
1
2
-6
-4
-2
0
AV = 1
RL = 1MΩ V
OUT
= 100mV
P-P
CL = 12pF
3
-7 100 1k 10k
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL GAIN vs. FREQUENCY
-5
-6
MAX4470–74 toc29
FREQUENCY (Hz)
GAIN (dB)
-3
-4
-1
0
-2
1
2
AV = 1
RL = 10kΩ V
OUT
= 1V
P-P
CL = 12pF
3
-7 100 1k 10k
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL GAIN vs. FREQUENCY
-5
-6
MAX4470–74 toc30
FREQUENCY (Hz)
GAIN (dB)
-3
-4
-1
0
-2
1
2
AV = 1
RL = 100kΩ V
OUT
= 1V
P-P
CL = 12pF
3
-7 100 1k 10k
MAX4470/MAX4471/MAX4472
LARGE-SIGNAL GAIN vs. FREQUENCY
-5
-6
MAX4470–74 toc31
FREQUENCY (Hz)
GAIN (dB)
-3
-4
-1
0
-2
1
2
AV = 1
RL = 1MΩ V
OUT
= 1V
P-P
CL = 12pF
80
-60 1 1k 10k 100k
10
FREQUENCY (Hz)
GAIN (dB)
10
100
MAX4464/MAX4474
GAIN AND PHASE vs. FREQUENCY
70 60 50 40 30 20
0
-10
-20
-30
-40
-50
MAX4464 toc32
180
135
90
45
0
-45
-90
-135
PHASE (degrees)
RL =1MΩ C
L
= 8pF
A
VCL
= 1000V/V
GAIN
PHASE
80
-60
1 1k 10k 100k
10
FREQUENCY (Hz)
GAIN (dB)
10
100
MAX4464/MAX4474
GAIN AND PHASE vs. FREQUENCY
70 60 50 40 30 20
0
-10
-20
-30
-40
-50
MAX4464 toc33
RL =1MΩ C
L
= 250pF
A
VCL
= 1000V/V
GAIN
PHASE
180
135
90
45
0
-45
-90
-135
PHASE (degrees)
0.001 10 10k1k100
MAX4464/MAX4474
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
10
0.01
1
0.1
MAX4464 toc34
FREQUENCY (Hz)
THD + N (%)
100,000
100
10k 100k 1M
MAX4464/MAX4474
STABILITY vs. CAPACITIVE
AND RESISTIVE LOADS
MAX4464 toc35
RESISTIVE LOAD (Ω)
CAPACITIVE LOAD (pF)
1000
10,000
UNSTABLE
REGION
OUTPUT
50mV/div
INPUT
10mV/div
MAX4464/MAX4474
SMALL-SIGNAL STEP RESPONSE
MAX4464 toc36
500µs/div
VDD = +5V A
V
= +5V/V
R
L
= 1MΩ
C
L
= 8pF
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD= +5V, VSS= 0V, VCM= 0V, RL= 100kΩ to VDD/2, TA= +25°C, unless otherwise noted.)
INPUT
10mV/div
OUTPUT
50mV/div
MAX4464/MAX4474
SMALL-SIGNAL STEP RESPONSE
VDD = +5V
= +5V/V
A
V
= 1MΩ
R
L
= 250pF
C
L
500µs/div
MAX4464/MAX4474
LARGE-SIGNAL STEP RESPONSE
INPUT
100mV/div
OUTPUT
500mV/div
MAX4464 toc37
10mV/div
50mV/div
VDD = +5V A R C
INPUT
OUTPUT
= +5V/V
V
= 1MΩ
L
= 1000pF
L
MAX4464/MAX4474
SMALL-SIGNAL STEP RESPONSE
VDD = +5V
= +5V/V
A
V
= 1MΩ
R
L
= 1000pF
C
L
500µs/div
MAX4464 toc40
MAX4464/MAX4474
LARGE-SIGNAL STEP RESPONSE
MAX4464 toc38
INPUT
100mV/div
OUTPUT
500mV/div
500µs/div
MAX4464/MAX4474
PERCENT OVERSHOOT vs. CAPACITIVE LOAD
30
25
20
15
10
PERCENT OVERSHOOT (%)
5
RL = 1MΩ
RL = 100kΩ
RL = 10kΩ
VDD = +5V A
V
= 1MΩ
R
L
= 8pF
C
L
MAX4464 toc41
= +5V/V
MAX4464 toc39
500µs/div
MAX4464/MAX4474
SMALL-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
3
RL = 10kΩ
2
= 100m
V
OUT
CL = 12pF
1
0
-1
-2
GAIN (dB)
-3
-4
-5
-6
-7 100 100k10k1k
V
P-P
FREQUENCY (Hz)
MAX4464 toc42
AV = +5
0
0 100 15050 200 250 300
C
(pF)
LOAD
MAX4464/MAX4474
SMALL-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
3
RL = 100kΩ
2
= 100m
V
OUT
CL = 12pF
1
0
-1
-2
GAIN (dB)
-3
-4
-5
-6
-7 100 100k10k1k
V
P-P
AV = +5
FREQUENCY (Hz)
MAX4464 toc43
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
_______________________________________________________________________________________
9
Typical Operating Characteristics (continued)
(VDD= +5V, VSS= 0V, VCM= 0V, RL= 100kΩ to VDD/2, TA= +25°C, unless otherwise noted.)
Pin Description
MAX4464/MAX4474
SMALL-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
3
RL = 1MΩ
2
= 100m
V
OUT
CL = 12pF
1
0
-1
-2
GAIN (dB)
-3
-4
-5
-6
-7 100 100k10k1k
V
P-P
FREQUENCY (Hz)
MAX4464/MAX4474
LARGE-SIGNAL NORMALIZED GAIN
vs. FREQUENCY
3
RL = 100kΩ
2
= 1
V
V
OUT
P-P
CL = 12pF
1
0
-1
-2
GAIN (dB)
-3
-4
-5
-6
-7 100 100k10k1k
FREQUENCY (Hz)
MAX4464 toc44
AV = +5
MAX4464 toc46
AV = +5
LARGE-SIGNAL NORMALIZED GAIN
3
RL = 10kΩ
2
= 1
V
OUT
CL = 12pF
1
0
-1
-2
GAIN (dB)
-3
-4
-5
-6
-7 100 100k10k1k
LARGE-SIGNAL NORMALIZED GAIN
3
RL = 1MΩ
2
= 1
V
OUT
CL = 12pF
1
0
-1
-2
GAIN (dB)
-3
-4
-5
-6
-7 100 100k10k1k
MAX4464/MAX4474
vs. FREQUENCY
V
P-P
AV = +5
FREQUENCY (Hz)
MAX4464/MAX4474
vs. FREQUENCY
V
P-P
AV = +5
FREQUENCY (Hz)
MAX4464 toc45
MAX4464 toc47
MAX4464/
MAX4470
1
—
2
3
4
—
PIN
MAX4470
(WLP)
A1
—
A2
B1
C1
—
MAX4471/
MAX4474
MAX4472
— — IN+ Noninverting Amplifier Input
3 3 INA+ Noninverting Amplifier Input (Channel A)
411VSSNegative Power-Supply Voltage
— — IN- Inverting Amplifier Input
— — OUT Amplifier Output
2 2 INA- Inverting Amplifier Input (Channel A)
NAME FUNCTION
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
10 ______________________________________________________________________________________
Figure 1. Compensation for Feedback Node Capacitance
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 VDDpin.
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.
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.
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.
Pin Description (continued)
PIN
MAX4464/
MAX4470
—
—
—
—
—
—
—
—
—
—
5B28 4VDDPositive Power-Supply Voltage
— C2 — — N.C. No Connection. Not internally connected.
MAX4470
(WLP)
—
—
—
—
—
—
—
—
—
—
MAX4471/
MAX4474
1 1 OUTA Amplifier Output (Channel A)
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)
MAX4472
NAME FUNCTION
V
V
IN
CC
R2
MAX44_ _
V
SS
2pF TO 10pF
R1
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
______________________________________________________________________________________ 11
Chip Information
PROCESS: BiCMOS
INB-
INB+
V
SS
1
2
87V
DD
OUTB
INA-
INA+
OUTA
3
4
6
5
SOT23/µMAX/SO
MAX4471 MAX4474
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUTD
IND-
IND+
V
SS
V
DD
INA+
INA-
OUTA
INC+
INC-
OUTC
OUTB
INB-
INB+
SO/TSSOP
MAX4472
+
+
V
SS
OUTIN-
15V
DD
IN+
MAX4470 MAX4464
SC70/SOT23
TOP VIEW
2
34
+
Pin Configurations (continued)
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
12 ______________________________________________________________________________________
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.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO. LAND PATTERN NO.
5 SC70 X5+1
21-0076 90-0188
5 SOT23 U5+1
21-0057 90-0174
6 WLP W61B1+1
21-0217
Refer to Application Note 1891
8 µMAX U8+1
21-0036 90-0092
8 SOT23 K8+5
21-0078 90-0176
8 SOIC S8+2
21-0041 90-0096
14 SOIC S14+1
21-0041 90-0096
14 TSSOP U14+1
21-0066 90-0117
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
______________________________________________________________________________________ 13
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.
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
14 ______________________________________________________________________________________
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.
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
______________________________________________________________________________________ 15
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.
D
D
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
16 ______________________________________________________________________________________
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
1
21-0078
1
J
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
______________________________________________________________________________________ 17
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.
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70, Rail-to-Rail Op Amps
18 ______________________________________________________________________________________
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.
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
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
Revision History
REVISION
NUMBER
3 6/10 Added WLP package 1, 2, 9, 10, 11
4 7/11 Updated power-on time specification 3
REVISION
DATE
DESCRIPTION
CHANGED
PAGES
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