General Description
The MAX4162/MAX4163/MAX4164 are single/dual/quad,
micropower operational amplifiers that combine an
exceptional bandwidth to power consumption ratio with
true rail-to-rail inputs and outputs. They consume a
mere 25µA quiescent current per amplifier, yet achieve
200kHz gain-bandwidth product and are unity-gain
stable while driving any capacitive load. The MAX4162/
MAX4163/MAX4164 operate from either a single supply
(2.5V to 10V) or dual supplies (±1.25V to ±5V), with an
input common-mode voltage range that extends 250mV
beyond either supply rail. These amplifiers use a propri-
etary architecture to achieve a very high input common-
mode rejection ratio without the midswing nonlinearities
present in other rail-to-rail op amps. This architecture
also maintains high open-loop gain and output swing
while driving substantial loads.
The combination of excellent bandwidth/power perfor-
mance, single-supply operation, and miniature footprint
makes these op amps ideal for portable equipment and
other low-power, single-supply applications. The single
MAX4162 is available in 8-pin SO and space-saving
5-pin SOT23 packages. The MAX4163 is available in an 8-
pin ultra chip-scale package (UCSP™) and an 8-pin
µMAX®or SO package. The MAX4164 is available in a 14-
pin SO package.
________________________Applications
Battery-Powered Devices Medical Instruments
pH Probes Ionization Detectors
Portable Equipment Cellular Phones
Low-Power, Low-Voltage
Equipment
Features
♦UCSP Package (MAX4163)
♦1.0pA Typical Input Bias Current
♦Single-Supply Operation from 2.5V to 10V
♦Input Common-Mode Voltage Range Extends
250mV Beyond Either Supply Rail
♦Rail-to-Rail Output Swing
♦200kHz Gain-Bandwidth Product
♦25µA Quiescent Current per Amplifier
♦Excellent CMRR, PSRR, and Gain Linearity
♦No Phase Reversal for Overdriven Inputs
♦Unity-Gain Stable
♦Stable with Any Capacitive Load
♦Internally Short-Circuit Protected to Either Rail
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
________________________________________________________________
Maxim Integrated Products
1
MAX152
1/2 MAX4163
1/2 MAX4163
MAX6120
MICROPOWER ±1.2V REFERENCE
VREF+
VDD
VDD
VDD
VSS
VSS
R
VSS
-1.2V
+1.2V
VOUT
VOUT
GND
VIN
3V
IN+
IN-
R
IN-
IN+
VOUT
-3V
VREF-
Typical Application Circuit
Pin Configurations
19-1195; Rev 2; 5/09
PART
MAX4162ESA -40°C to +85°C
TEMP
RANGE
PIN-
PACKAGE
8 SO
Ordering Information
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.
TOP
MARK
—
TOP VIEW TOP VIEW (BUMPS SIDE DOWN)
VSS
IN-
IN+
15VDD
OUT
MAX4162
MAX4163
SOT23
2
34
A
B
C
12 3
OUTA VDD OUTB
INA- INB-
INB+VSS
INA+
UCSP (B9-2)
MAX4162EUK-T -40°C to +85°C 5 SOT23 AABX
MAX4163EBL-T* -40°C to +85°C 8 UCSP AAX
MAX4163EUA -40°C to +85°C 8 µMAX —
Pin Configurations continued at end of data sheet.
*
UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.
MAX4164ESD -40°C to +85°C 14 SO —
UCSP is a trademark and µMAX is a registered trademark of
Maxim Integrated Products, Inc.
MAX4163ESA -40°C to +85°C 8 SO —
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS: 3V Operation
(VDD = 3V, VSS = 0, VCM = VDD/2, VOUT = VDD/2, RLtied to VDD/2, TA= -40°C to +85°C, unless otherwise noted. Typical values are
at TA= +25°C.) (Note 1)
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.
Supply Voltage (VDD to VSS)..................................................11V
IN+, IN-, OUT Voltage ......................(VDD + 0.3V) to (VSS - 0.3V)
Short-Circuit Duration (to either rail)...........................Continuous
Continuous Power Dissipation (TA= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)..............571mW
8-Pin SO (derate 5.88mW/°C above +70°C)..................471mW
8-Pin UCSP (derate 4.7mW/°C above +70°C) ...............379mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) ...............330mW
14-Pin SO (derate 8.00mW/°C above +70°C)................640mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
To either supply rail
VOL - VSS
VDD - VOH
VOL - VSS
VDD - VOH
Inferred from PSRR test
RL= 10kΩ
Inferred from CMRR test
TA= +25°C
TA= -40°C to +85°C
TA= +25°C
TA= -40°C to +85°C
CONDITIONS
15ISC
mV
325
RL= 100kΩ
VOUT 325
30 180
RL= 10kΩ30 180
dBAV85 120
dBCMRR 70 100
pA1.0 100
V2.5 10.0VDD
IB
TΩ
VSS - VDD +
0.25 0.25
VCM
>10RIN
±6
±0.5 ±5
MAX4164
±0.5 ±3
VOS
±4
MAX4162
±0.5 ±4 mV
±5
MAX4163
UNITSMIN TYP MAXSYMBOL
AV= 1V/V
kHz200GBWP
VDD = 2.5V to 10VPSRR dB80 110
mA
0.1ROUT
V
VCM = (VSS - 0.25V) to (VDD + 0.25V)
Ω
µV/°CTCVOS 2
TA= +25°C
TA= -40°C to +85°C
µA25 40IDD
degrees60
φM
dB12GM
VOUT = 1V to 2V step µs50
VDD = 0 to 3V step, VIN = VDD/2, AV= 1V/V µs20tON
V/ms115SR
f = 1kHz, VOUT = 2VP-P, RL= 100kΩ, AV= 1V/VTHD %0.02
Phase Margin
Gain Margin
Output Short-Circuit Current
Output Voltage Swing
Input Offset Voltage Tempco
Settling Time to 0.1%
Large-Signal Voltage Gain
Supply Current (Per Amplifier)
Turn-On Time
Slew Rate
Total Harmonic Distortion
Common-Mode Rejection Ratio
Operating Voltage Range
Input Bias Current (Note 2)
Input Common-Mode Voltage
Range
Differential Input Resistance
Input Offset Voltage
PARAMETER
Gain-Bandwidth Product
Power-Supply Rejection Ratio
Closed-Loop Output Resistance
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS: 3V Operation (continued)
(VDD = 3V, VSS = 0, VCM = VDD/2, VOUT = VDD/2, RLtied to VDD/2, TA= -40°C to +85°C, unless otherwise noted. Typical values are
at TA= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS: 5V Operation
(VDD = 5V, VSS = 0, VCM = VDD/2, VOUT = VDD/2, RLtied to VDD/2, TA= -40°C to +85°C, unless otherwise noted. Typical
values are at TA= +25°C.) (Note 1)
pF
CONDITIONS
nV/√Hz
en80f = 1kHzInput Voltage-Noise Density
Input Common-Mode
Capacitance
pF
1.5
Differential Input Capacitance 0.7
PARAMETER UNITSMIN TYP MAXSYMBOL
kHz
Internal Charge-Pump
Frequency 700
µVP-P
Charge-Pump Output
Feedthrough 100
To either supply rail
VOL - VSS
VDD - VOH
V
VOL - VSS
VDD - VOH
VCM = (VSS - 0.25V) to (VDD + 0.25V)
Inferred from PSRR test
degrees60
RL= 10kΩ
Inferred from CMRR test
φM
Ω
dB
TA= +25°C
TA= -40°C to +85°C
TA= +25°C
12
TA= -40°C to +85°C
GM
CONDITIONS
15ISC
mV
540
RL= 100kΩ
VOUT
µV/°C
540
µA
50 300
RL= 10kΩ
2
50 300
TA= +25°C
TA= -40°C to +85°C
dBAV
25 45IDD
85 120
dBCMRR
Phase Margin
Gain Margin
Output Short-Circuit Current
Output Voltage Swing
70 100
Input Offset Voltage Tempco
Large-Signal Voltage Gain
Supply Current (Per Amplifier)
Common-Mode Rejection Ratio
Operating Voltage Range
pA1.0 100Input Bias Current (Note 2)
V2.5 10.0
Input Common-Mode Voltage
Range
VDD
IB
TΩ
VSS - VDD +
0.25 0.25
Differential Input Resistance
VCM
Input Offset Voltage
>10
PARAMETER
Gain-Bandwidth Product
±6
Power-Supply Rejection Ratio
Closed-Loop Output Resistance
±0.5 ±5
MAX4164
±0.5 ±3
VOS
±4
MAX4162
±0.5 ±4 mV
±5
MAX4163
UNITSMIN TYP MAXSYMBOL
AV= 1V/V
kHz200GBWP
VDD = 2.5V to 10VPSRR dB80 110
mA
0.1ROUT
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
4 _______________________________________________________________________________________
0
5
10
15
20
25
30
1234567
8910
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX4162-01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
10
12
14
16
18
20
22
24
26
28
-40 -20 0 20 40 60 80 100
SUPPLY CURRENT
vs. TEMPERATURE
MAX4162-02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
VCC = 5V
VCC = 3V
-150
-130
-110
-90
-70
-50
-30
-10
10
30
50
12345678910
INPUT OFFSET VOLTAGE VARIATION
vs. SUPPLY VOLTAGE
MAX4162-03
SUPPLY VOLTAGE (V)
VOS (µV)
ELECTRICAL CHARACTERISTICS: 5V Operation (continued)
(VDD = 5V, VSS = 0, VCM = VDD/2, VOUT = VDD/2, RLtied to VDD/2, TA= -40°C to +85°C, unless otherwise noted. Typical
values are at TA= +25°C.) (Note 1)
__________________________________________Typical Operating Characteristics
(VDD = 5V, VSS = 0, VCM = VDD/2, TA = +25°C, unless otherwise noted.)
Note 1: All device specifications are 100% tested at TA= +25°C. Limits over the extended temperature range are guaranteed by
design, not production tested.
Note 2: Input bias current guaranteed by design, not production tested.
pF
CONDITIONS
%THD 0.02f = 1kHz, VOUT = 2VP-P, RL= 100kΩ, AV= 1V/VTotal Harmonic Distortion
Input Common-Mode
Capacitance
V/ms
1.5
Slew Rate 115
PARAMETER
SR
kHz
Internal Charge-Pump
Frequency 700
µVP-P
Charge-Pump Output
Feedthrough 100
UNITSMIN TYP MAXSYMBOL
VOUT = 1V to 2V step µsSettling Time to 0.1% 70
VDD = 0 to 3V step, VIN = VDD/2, AV= 1V/V µsTurn-On Time 40tON
f = 1kHz nV/√Hz
Input Voltage-Noise Density 80en
pFDifferential Input Capacitance 0.7
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
_______________________________________________________________________________________
5
-1000
-750
-500
-250
0
250
500
750
1000
-40 -20 0 20 40 60 80 100
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX4162-04
TEMPERATURE (°C)
VOS (µV)
-14
-12
-10
-8
-6
-4
-2
0
2
4
6
-0.5 0.5 1.5 2.5 3.5 4.5 5.5
INPUT OFFSET VOLTAGE VARIATION
vs. COMMON-MODE VOLTAGE
MAX4162-05
COMMON-MODE VOLTAGE (V)
VOS (µV)
10
30
50
70
90
110
130
0.1 1 10 100 1k 10k 100k 1M
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX4162-08
FREQUENCY (Hz)
PSRR (dB)
AV = 1
0
10
20
30
40
50
70
60
80
100
90
110
120
COMMON-MODE REJECTION
vs. TEMPERATURE
MAX4162-10
TEMPERATURE (°C)
COMMON-MODE REJECTION (dB)
-40 -20 0 20 40 60 80 100
VDD = 3V OR 5V
VCM = -0.25V TO VDD + 0.25V
10
30
50
70
90
110
130
-40 -20 0 20 40 60 80 100
POWER-SUPPLY REJECTION RATIO
vs. TEMPERATURE
MAX4162-09
TEMPERATURE (°C)
PSRR (dB)
0
20
40
60
80
100
120
140
160
OPEN-LOOP GAIN
vs. TEMPERATURE
MAX4162-11
TEMPERATURE (°C)
OPEN-LOOP GAIN (dB)
-40 -20 0 20 40 60 80 100
VDD = 3V OR 5V
RL = 10kΩ
RL = 100kΩ
0.1
1
10
100
1000
10,000
0.1 1 10 100 1k 10k 100k 1M
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX4162-12a
FREQUENCY (Hz)
OUTPUT IMPEDANCE (Ω)
AV = 1
Typical Operating Characteristics (continued)
(VDD = 5V, VSS = 0, VCM = VDD/2, TA = +25°C, unless otherwise noted.)
0
5
10
15
20
25
30
35
40
SHORT-CIRCUIT OUTPUT CURRENT
vs. TEMPERATURE
MAX4162-13
TEMPERATURE (°C)
SHORT-CIRCUIT OUTPUT CURRENT (mA)
-40 -20 0 20 40 60 80 100
VDD = 3V OR 5V
SHORT TO EITHER SUPPLY RAIL
1.00
1.25
1.50
1.75
2.00
0 2.50 3.751.25 5.00
COMMON-MODE INPUT CAPACITANCE
vs. COMMON-MODE VOLTAGE
MAX4162-12b
COMMON-MODE VOLTAGE (V)
COMMON-MODE INPUT CAPACITANCE (pF)
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
6 _______________________________________________________________________________________
0
50
100
150
200
250
300
0 0.4 0.8 1.2 1.6 2.0
MAXIMUM OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX4162-14
LOAD CURRENT (mA)
VDD - VOUT(MAX) (mV)
VDD = 3V OR 5V
LOAD TO VDD/2
0
50
100
150
200
250
300
0 0.4 0.8 1.2 1.6 2.0
MINIMUM OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX4162-15
LOAD CURRENT (mA)
VOUT(MIN) (mV)
VDD = 3V OR 5V
LOAD TO VDD/2
0
10
20
30
40
50
60
70
80
90
100
MAXIMUM OUTPUT VOLTAGE
vs. TEMPERATURE
(VDD = 5V)
MAX4162-16
TEMPERATURE (°C)
VDD - VOUT(MAX) (mV)
-40 -20 0 20 40 60 80 100
VDD = 5V
LOAD TO VDD/2 RL = 5kΩ
RL = 10kΩ
RL = 100kΩ
0
10
20
30
40
50
60
70
80
90
MINIMUM OUTPUT VOLTAGE
vs. TEMPERATURE
(VDD = 3V)
MAX4162-19
TEMPERATURE (°C)
VOUT(MIN) (mV)
-40 -20 0 20 40 60 80 100
VDD = 3V
LOAD TO VDD/2
RL = 5kΩ
RL = 10kΩ
RL = 100kΩ
0
20
40
60
80
100
120
140
MINIMUM OUTPUT VOLTAGE
vs. TEMPERATURE
(VDD = 5V)
MAX4162-17
TEMPERATURE (°C)
VOUT(MIN) (mV)
-40 -20 0 20 40 60 80 100
VDD = 5V
LOAD TO VDD/2 RL = 5kΩ
RL = 10kΩ
RL = 100kΩ
0
10
20
30
40
50
60
MAXIMUM OUTPUT VOLTAGE
vs. TEMPERATURE
(VDD = 3V)
MAX4162-18
TEMPERATURE (°C)
VDD - VOUT(MAX) (mV)
-40 -20 0 20 40 60 80 100
VDD = 3V
LOAD TO VDD/2
RL = 5kΩ
RL = 10kΩ
RL = 100kΩ
0
20
40
60
80
100
120
-0.5 0.5 1.5 2.5 3.5 4.5 5.5
NOISE VOLTAGE DENSITY
vs. COMMON-MODE VOLTAGE
MAX4162-20
COMMON-MODE VOLTAGE (V)
NOISE VOLTAGE DENSITY (nV/√Hz)
100Hz
1kHz
10kHz
0
10
20
30
40
50
60
70
80
90
100
10 100 1k 10k 1M100k
NOISE VOLTAGE DENSITY
vs. FREQUENCY
MAX4162-21a
FREQUENCY (Hz)
NOISE VOLTAGE DENSITY (nV/√Hz )
0.001
0.01
0.1
1
10 1k100 10k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4162-21b
FREQUENCY (Hz)
THD + N (%)
AV = 1
RL = 100kΩ
VP-P = 4.99V
VP-P = 1V
Typical Operating Characteristics (continued)
(VDD = 5V, VSS = 0, VCM = VDD/2, TA = +25°C, unless otherwise noted.)
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
_______________________________________________________________________________________
7
60
-40
1 100 1k 10k 100k 1M
GAIN AND PHASE vs. FREQUENCY
(CL = 0)
-20
MAX4162-22
FREQUENCY (Hz)
GAIN (dB)
PHASE (degrees)
0
20
40
180
-180
-108
-36
36
108
144
-144
-72
0
72
RL = 100kΩ
CL = 0
AV = 1000
GAIN
PHASE
60
-40
1 100 1k 10k 100k 1M
GAIN AND PHASE vs. FREQUENCY
(CL = 500pF)
-20
MAX4162-23
FREQUENCY (Hz)
GAIN (dB)
PHASE (degrees)
0
20
40
180
-180
-108
-36
36
108
144
-144
-72
0
72
RL = 100kΩ
CL = 500pF
AV = 1000
GAIN
PHASE
60
-40
1 100 1k 10k 100k 1M
GAIN AND PHASE vs. FREQUENCY
(CL = 0.01µF)
-20
MAX4162-24
FREQUENCY (Hz)
GAIN (dB)
PHASE (degrees)
0
20
40
180
-180
-108
-36
36
108
144
-144
-72
0
72
RL = 100kΩ
CL = 0.01µF
AV = 1000
GAIN
PHASE
0.01
0.1
1
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE SWING
MAX4162-21c
PEAK-TO-PEAK OUTPUT VOLTAGE SWING (V)
THD + N (%)
f = 5kHz
AV = 1
RL = 100kΩ
f = 1kHz
Typical Operating Characteristics (continued)
(VDD = 5V, VSS = 0, VCM = VDD/2, TA = +25°C, unless otherwise noted.)
IN
50mV/div
OUT
50mV/div
NONINVERTING
SMALL-SIGNAL PULSE RESPONSE
(VDD = 3V, CL = 0)
MAX4162-25
100µs/div
VDD = 3V, VIN = 100mV, RL = 100kΩ to VDD/2,
CL = 0
IN
50mV/div
OUT
50mV/div
NONINVERTING
SMALL-SIGNAL PULSE RESPONSE
(VDD = 3V, CL = 1500pF)
MAX4162-26
100µs/div
VDD = 3V, VIN = 100mV, RL = 100kΩ to VDD/2,
CL = 1500pF
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
8 _______________________________________________________________________________________
IN
2V/div
OUT
2V/div
NONINVERTING
LARGE-SIGNAL PULSE RESPONSE
(VDD = 5V, CL = 0)
MAX4162-31
100µs/div
VDD = 5V, VIN = 4V, RL = 100kΩ to VDD/2,
CL = 0
Typical Operating Characteristics (continued)
(VDD = 5V, VSS = 0, VCM = VDD/2, TA = +25°C, unless otherwise noted.)
IN
50mV/div
OUT
50mV/div
NONINVERTING
SMALL-SIGNAL PULSE RESPONSE
(VDD = 5V, CL = 1500pF)
MAX4162-28
100µs/div
VDD = 5V, VIN = 100mV, RL = 100kΩ to VDD/2,
CL = 1500pF
IN
1V/div
OUT
1V/div
NONINVERTING
LARGE-SIGNAL PULSE RESPONSE
(VDD = 3V, CL = 0)
MAX4162-29
100µs/div
VDD = 3V, VIN = 2V, RL = 100kΩ to VDD/2,
CL = 0
IN
50mV/div
OUT
50mV/div
NONINVERTING
SMALL-SIGNAL PULSE RESPONSE
(VDD = 5V, CL = 0)
MAX4162-27
100µs/div
VDD = 5V, VIN = 100mV, RL = 100kΩ to VDD/2,
CL = 0
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
_______________________________________________________________________________________ 9
Pin Description
SO
1, 5, 8
3
4
—
7
6
IN
2V/div
OUT
2V/div
NONINVERTING
LARGE-SIGNAL PULSE RESPONSE
(VDD = 5V, CL = 1500pF)
MAX4162-32
100µs/div
VDD = 5V, VIN = 4V, RL = 100kΩ to VDD/2,
CL = 1500pF
0
-160
0.1 1 10 100 1000
MAX4163/MAX4164
CROSSTALK vs. FREQUENCY
-140
MAX4162-33
FREQUENCY (kHz)
CROSSTALK (dB)
-100
-120
-60
-80
-20
-40
SOT23
—
3
2
—
5
1
Typical Operating Characteristics (continued)
(VDD = 5V, VSS = 0, VCM = VDD/2, TA = +25°C, unless otherwise noted.)
MAX4162
—
—
—
4
8
1
MAX4163
—
C2
—
A2
A1
No Connection. Not internally connected.
—Amplifier Noninverting Input
Negative Power Supply
Amplifier Output
Positive Power Supply
Amplifier A Output
N.C.
IN+
VSS
OUT
VDD
OUTA
INA-—Amplifier A Inverting Input— 2 B1
IN-2Amplifier Inverting Input4 — —
INA+—Amplifier A Noninverting Input— 3 C1
INB+—Amplifier B Noninverting Input— 5 C3
INB-—Amplifier B Inverting Input— 6 B3
OUTB—Amplifier B Output— 7 A3
OUTC—Amplifier C Output— — —
INC-—Amplifier C Inverting Input— — —
INC+—Amplifier C Noninverting Input— — —
IND+—Amplifier D Noninverting Input— — —
IND-—Amplifier D Inverting Input— — —
OUTD—Amplifier D Output— — —
NAME FUNCTION
MAX4164
—
—
11
—
4
1
2
—
3
5
6
7
8
9
10
12
13
14
PIN
SOSO/µMAX UCSP
__________Applications Information
Rail-to-Rail Inputs and Outputs
The MAX4162/MAX4163/MAX4164 input common-mode
range extends 250mV beyond each of the supply rails,
providing a substantial increase in dynamic range over
other op amps (even many of those referred to as rail-to-
rail). Although the minimum operating voltage is speci-
fied at 2.5V, the devices typically provide full rail-to-rail
operation below 2.0V (Figure 1). These amplifiers do not
suffer from midswing common-mode-rejection degrada-
tion or crossover nonlinearity often encountered in other
rail-to-rail op amps. Extremely low, 1.0pA input bias cur-
rent makes these devices ideal for applications such as
pH probes, electrometers, and ionization detectors.
They are also protected against phase reversal (inferred
from CMRR test) and latchup for input signals extending
beyond the supply rails. The output stage achieves a
lower output impedance than traditional rail-to-rail out-
put stages, providing an output voltage range that typi-
cally swings within 150mV of the supply rails for 1mA
loads. This architecture also maintains high open-loop
gain and output swing while driving substantial loads.
Output Loading and Stability
These devices drive 1mA loads to within 150mV of the
supply rails while consuming only 25µA of quiescent
current. Internal compensation allows these amplifiers to
remain unity-gain stable while driving any capacitive
load (Figure 2).
Internal Charge Pump
An internal charge pump provides two internal supplies
typically 2V beyond each rail. These internal rails allow
the MAX4162/MAX4163/MAX4164 to achieve true rail-
to-rail inputs and outputs, while providing excellent
common-mode rejection, power-supply rejection ratios,
and gain linearity.
These charge pumps require no external components,
and in most applications are entirely transparent to the
user. Two characteristics may be visible to the user,
depending on the application:
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
10 ______________________________________________________________________________________
IN
200mV/div
500mV
0
500mV
0
OUT
200mV/div
LARGE CAPACITIVE-LOAD DRIVE
MAX4162-36
5µs/div
AV = 1, CL = 1µF, RL = 100kΩ
Figure 2. Large Capacitive-Load Drive
IN
0.667V/div
2V
0
2V
0
OUT
0.667V/div
RAIL-TO-RAIL
INPUT/OUTPUT VOLTAGE RANGE
(VDD = 2V)
MAX4162-34
200µs/div
VDD = 2V, VP-P = 2V, f = 1kHz, RL = 10kΩ
Figure 1. Rail-to-Rail I/O: a) VDD = 3V; b) VDD = 2V
IN
1V/div
3V
0
3V
0
OUT
1V/div
RAIL-TO-RAIL
INPUT/OUTPUT VOLTAGE RANGE
(VDD = 3V)
MAX4162-35
200µs/div
VDD = 3V, VP-P = 3V, f = 1kHz, RL = 10kΩ
a) b)
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
______________________________________________________________________________________ 11
1) The on-board charge pumps generate a small
amount of 700kHz switching noise at the op amp’s
output. The amplitude of this noise is typically
100µVP-P. The noise is not referred to the input, and
is independent of amplifier gain. The charge-pump
switching frequency is well beyond the amplifier’s
200kHz bandwidth, and is therefore unnoticeable in
most applications.
2) The charge pumps typically require up to 20µs on
power-up to fully energize the internal supply rails
(Figure 3).
Power Supplies and Layout
The MAX4162/MAX4163/MAX4164 are guaranteed to
operate from a single 2.5V to 10.0V power supply, but
full rail-to-rail operation typically extends below 2V. For
single-supply operation, bypass the power supply with a
1µF capacitor in parallel with a 0.1µF ceramic capacitor.
If operating from dual supplies, bypass each supply to
ground.
Good layout improves performance by decreasing the
amount of stray capacitance at the op amp’s inputs and
output. To decrease stray capacitance, minimize both
trace and external component lead lengths, and place
external components close to the op amp’s pins.
UCSP Package Consideration
For general UCSP package information and PC layout
considerations, please refer to the Maxim Application
Note (Wafer-Level Ultra-Chip-Board-Scale-Package).
UCSP Reliability
The UCSP represents a unique packaging form factor
that may not perform equally to a packaged product
through traditional mechanical reliability tests. UCSP
reliability is integrally linked to the user’s assembly
methods, circuit board material, and usage environ-
ment. The user should closely review these areas when
considering use of a UCSP. Performance through oper-
ating life test and moisture resistance remains uncom-
promised as it is primarily determined by the
wafer-fabrication process. Mechanical stress perfor-
mance is a greater consideration for a UCSP package.
UCSPs are attached through direct solder contact to
the user’s PC board, foregoing the inherent stress relief
of a packaged product lead frame. Solder joint contact
integrity must be considered.
Table 1 shows the testing done to characterize the
UCSP reliability performance. In conclusion, the UCSP
is capable of performing reliably through environmental
stresses as indicated by the results in the table.
Additional usage data and recommendations are
detailed in the UCSP application note, which can be
found on Maxim’s website at www.maxim-ic.com.
TEST CONDITIONS DURATION NO. OF FAILURES PER
SAMPLE SIZE
Temperature Cycle -35°C to +85°C, -40°C to +100°C 150 cycles, 900 cycles 0/10, 0/200
Operating Life TA = +70°C 240h 0/10
Moisture Resistance -20°C to +60°C, 90% RH 240h 0/10
Low-Temperature Storage -20°C 240h 0/10
Low-Temperature Operational -10°C 24h 0/10
Solderability 8h steam age — 0/15
ESD ±2000V, Human Body Model — 0/5
High-Temperature Operating
Life TJ = +150°C 168h 0/45
Table 1. Reliability Test Data
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
12 ______________________________________________________________________________________
_____________________________________________Pin Configurations (continued)
TOP VIEW
INB-
INB+
VSS
1
2
8
7
VDD
OUTB
INA-
INA+
OUTA
SO/µMAX
3
4
6
5
MAX4163
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUTD
IND-
IND+
VSS
VDD
INA+
INA-
OUTA
MAX4164
INC+
INC-
OUTC
OUTB
INB-
INB+
SO
OUT
N.C.
VSS
1
2
8
7
N.C.
VDD
IN-
IN+
N.C.
SO
3
4
6
5
MAX4162
___________________Chip Information
MAX4162 TRANSISTOR COUNT: 291
MAX4163 TRANSISTOR COUNT: 496
MAX4164 TRANSISTOR COUNT: 992
IN
1.5V/div
3V
0
1.5V
0
OUT
750mV/div
POWER-UP TRANSIENT
(VDD = 3V)
MAX4162-38
100µs/div
VDD = 3V, VIN = VDD/2, RL = 10kΩ, CL = 1500pF
IN
2V/div
5V
0
2.5V
0
OUT
1V/div
POWER-UP TRANSIENT
(VDD = 5V)
MAX4162-39
100µs/div
VDD = 5V, VIN = VDD/2, RL = 10kΩ, CL = 1500pF
Figure 3. Power-Up Transient: a) VDD = 3V; b) VDD = 5V
a) b)
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
______________________________________________________________________________________ 13
Package Information
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
8 SO S8-2, S8-4 21-0041
5 SOT23 U5-1 21-0057
8 UCSP B9-5 21-0093
8 µMAX U8-1 21-0036
14 SO S14M-5 21-0041
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.
14
__________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX4162/MAX4163/MAX4164
UCSP, Micropower, Single-Supply, 10V,
Rail-to-Rail I/O Op Amps
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
2 5/09 Changed operating supply voltage from 2.7V to 2.5V 1, 2, 3, 10, 11