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 alka-
line 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
100k
load, and can sink and source 11mA with a +5V
supply. These amplifiers are available in both fully com-
pensated 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-sav-
ing SC70, SOT23, MAX, 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 500V 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 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
V
SS
OUT
IN-
1
5
V
DD
IN+
MAX4470
MAX4464
SC70/SOT23
TOP VIEW
2
3
4
Pin Configurations
PART
NO. OF
AMPLIFIERS
GAIN-
BANDWIDTH
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 2; 2/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
PART
TEMP.
RANGE
PIN-
PACKAGE
TOP
MARK
MAX4464EXK-T
-40
C to +85C
5 SC70-5
ABT
MAX4464EUK-T
-40
C to +85C
5 SOT23-5
ADPI
MAX4470EXK-T
-40
C to +85C
5 SC70-5
ABS
MAX4470EUK-T
-40
C to +85C
5 SOT23-5
ADPH
MAX4471EKA-T
-40
C to +85C
8 SOT23-8
AAEK
MAX4471ESA
-40
C to +85C
8 SO
--
MAX4472EUD
-40
C to +85C
14 TSSOP
--
MAX4472ESD
-40
C to +85C
14 SO
--
MAX4474EKA-T
-40
C to +85C
8 SOT23-8
AAEL
MAX4474EUA
-40
C to +85C
8 MAX
--
MAX4474ESA
-40
C to +85C
8 SO
--
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
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, V
OUT
= V
DD
/2, R
L
=
to V
DD
/2, T
A
= +25C, 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.
V
DD
to V
SS
...............................................................-0.3V to +6V
IN_+ or IN_-......................................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
OUT_ Shorted to V
SS
or V
DD
......................................Continuous
Continuous Power Dissipation (T
A
= +70C)
5-Pin SC70 (derate 3.1mW/C above +70C)...................247mW
5-Pin SOT23 (derate 7.1mW/C above +70C).................571mW
8-Pin SOT23 (derate 8.9mW/C above +70C).................714mW
8-Pin MAX (derate 4.5mW/C above +70C) ..................362mW
8-Pin SO (derate 5.88mW/C above +70C)....................471mW
14-Pin TSSOP (derate 9.1mW/C above +70C) ...........727mW
14-Pin SO (derate 8.33mW/C above +70C)...............667mW
Operating Temperature Range ......................... -40C to +85C
Junction Temperature .....................................................+150C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) ................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
DD
Guaranteed by PSRR tests
1.8
5.5
V
V
DD
= +1.8V
0.6
Supply Current (Per
Amplifier)
I
DD
V
DD
= +5.0V
0.75
1.2
A
Input Offset Voltage
V
OS
0.5
7.0
mV
Input Bias Current
I
B
200
1500
pA
Input Offset Current
I
OS
12.5
pA
Input Common-Mode
Voltage Range
V
CM
Guaranteed by the CMRR test
V
SS
V
DD
-
1.1
V
Common-Mode Rejection
Ratio
CMRR
Specified with V
SS
V
CM
(V
DD
- 1.1V)
70
95
dB
Power-Supply Rejection
Ratio
PSRR
+1.8V
V
DD
+5.5V
70
90
dB
R
L
= 1M
, V
OUT
= 50mV to V
DD
- 50mV
90
120
R
L
= 100k
, V
OUT
= 200mV to V
DD
- 200mV
90
112
Large-Signal Voltage Gain
A
VOL
R
L
= 10k
, V
OUT
= 200mV to V
DD
- 200mV
100
dB
R
L
= 1M
1
4
R
L
= 100k
4
10
V
OH
Swing high
specified as
V
DD
- V
OH
R
L
= 10k
40
R
L
= 1M
0.5
5
R
L
= 100k
1
5
Output Voltage Swing
V
OL
Swing low
specified as
V
OL
- V
SS
R
L
= 10k
10
mV
MAX4470/MAX4471/MAX4472
9
Gain-Bandwidth Product
GBW
MAX4464/MAX4474
40
kHz
MAX4470/MAX4471/MAX4472
90
Phase Margin
M
MAX4464/MAX4474
80
d eg r ees
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 T
A
= +25C. All temperature limits are guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, V
OUT
= V
DD
/2, R
L
=
to V
DD
/2, T
A
= +25C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4470/MAX4471/MAX4472
2
Slew Rate
SR
V
OUT
=
4V step
MAX4464/MAX4474
20
V/ms
f = 1kHz
150
Input Voltage Noise
e
n
f = 10kHz
120
nV /
Hz
Shorted to V
SS
(sourcing)
11
Output Short-Circuit
Current
Shorted to V
DD
(sinking)
36
mA
Power-On Time
t
ON
2
s
Power-Off Time
t
OFF
2
s
Capacitive Load
C
LOAD
No sustained oscillations
250
pF
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, V
OUT
= V
DD
/2, R
L
=
to V
DD
/2, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
DD
Guaranteed by PSRR tests
1.8
5.5
V
Supply Current (Per
Amplifier)
I
DD
V
DD
= +5.0V
1.5
A
Input Offset Voltage
V
OS
15
mV
Input Offset Voltage
Temperature Coefficient
TCV
OS
8
V/
C
Input Bias Current
I
B
4.25
nA
Input Common-Mode
Voltage Range
V
CM
Guaranteed by the CMRR test
V
SS
V
DD
-
1.1
V
Common-Mode Rejection
Ratio
CMRR
V
SS
V
CM
(V
DD
- 1.1V)
56
dB
+1.8V
V
DD
+5.5V, 0
o
C
T
A
+85
o
C
65
Power-Supply Rejection
Ratio
PSRR
+2V
V
DD
+5.5V, -40
o
C
T
A
+85
o
C
65
dB
V
OUT
= 50mV to V
DD
- 50mV, R
L
= 1M
75
Large-Signal Voltage Gain
A
VOL
V
OUT
= 200mV to V
DD
- 200mV, R
L
= 100k
75
dB
R
L
= 1M
5
V
OH
Swing high specified
as V
DD
- V
OH
R
L
= 100k
15
R
L
= 1M
5
Output Voltage Swing
V
OL
Swing low specified as
V
OL
- V
SS
R
L
= 100k
5
mV
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
4
_______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, R
L
= 100k
to V
DD
/2, T
A
= +25C, 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 3.5
2.0 2.5
4.0 4.5 5.0 5.5 6.0
SUPPLY CURRENT PER AMPLIFIER vs.
SUPPLY VOLTAGE
MAX447074 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
A)
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 (
A)
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
1.5
0.5
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
0
1.5
1.0
0.5
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
10k
1k
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)
R
L
= 100k
R
L
= 1M
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)
R
L
= 100k
R
L
= 1M
MAX4464/MAX4470/MAX4471/MAX4472/MAX4474
Single/Dual/Quad, +1.8V/750nA, SC70,
Rail-to-Rail Op Amps
_______________________________________________________________________________________
5
-120
-100
-110
-60
-80
-70
-90
-40
-30
-50
-20
-50
0
-25
25
50
75
100
COMMON-MODE REJECTION RATIO vs.
TEMPERATURE
MAX4470
74 toc10
TEMPERATURE (
C)
CMRR (dB)
0
0.4
0.2
0.8
0.6
1.2
1.0
1.4
-50
0
25
-25
50
75
100
MINIMUM SUPPLY VOLTAGE
vs. TEMPERATURE
MAX4470-74 toc11
TEMPERATURE (
C)
MINIMUM SUPPLY VOLTAGE (V)
60
70
80
90
100
110
120
130
140
2.5
3.0
3.5
4.0
4.5
5.0
A
VOL
vs. OUTPUT VOLTAGE SWING
MAX4470-74 toc12
OUTPUT VOLTAGE (Vp-p)
A
VOL
(dB)
R
L
= 1M
R
L
= 10k
R
L
= 100k
1
100
1k
10k
10
100k
MAX4470/MAX4471/MAX4472
GAIN AND PHASE vs. FREQUENCY
MAX447074 toc13
FREQUENCY (Hz)
GAIN (dB)
PHASE (deg)
80
70
60
50
40
30
20
-60
10
0
-10
-20
-30
-40
-50
180
135
90
45
-135
0
-45
-90
C
L
= 12pF
R
L
= 1M
A
VCL
= 1000V/V
GAIN
PHASE
1
100
1k
10k
10
100k
MAX4470/MAX4471/MAX4472
GAIN AND PHASE vs. FREQUENCY
MAX447074 toc14
FREQUENCY (Hz)
GAIN (dB)
PHASE (deg)
80
70
60
50
40
30
20
-60
10
0
-10
-20
-30
-40
-50
180
135
90
45
-135
0
-45
-90
GAIN
PHASE
R
L
= 1M
A
VCL
= 1000V/V
C
L
= 250pF
-40
-140
10
100
1k
10k
100k
CROSSTALK vs. FREQUENCY
-100
-120
MAX4470 toc15
FREQUENCY (Hz)
CROSSTALK (dB)
-80
-60
10.00
0.01
10
100
10k
1k
MAX4470/MAX4471/MAX4472
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4470
74 toc16
FREQUENCY (Hz)
THD + N (%)
0.10
1.00
10k
10
10
1k
100
100k
10k
VOLTAGE NOISE DENSITY vs.
FREQUENCY
MAX4470
74 toc17
FREQUENCY (Hz)
100
1k
NOISE (nV/
Hz)
100k
100
10k
100k
1M
MAX4470/MAX4471/MAX4472 STABILITY
vs. CAPACITIVE AND RESISTIVE LOADS
MAX4470
74 toc18
RESISTIVE LOAD (
)
1k
10k
CAPACITIVE LOAD (pF)
UNSTABLE
REGION
Typical Operating Characteristics (continued)
(V
DD
= +5V, V
SS
= 0, V
CM
= 0, R
L
= 100k
to V
DD
/2, T
A
= +25C, unless otherwise noted.)
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