Maxim MAX4127ESD, MAX4127C-D, MAX4125EUA, MAX4125ESA, MAX4124EUK Datasheet

General Description

The MAX4122–MAX4129 family of operational amplifiers
combines wide bandwidth and excellent DC accuracy with
Rail-to-Rail®operation at the inputs and outputs. These
devices require only 650µA per amplifier, and operate from
either a single supply (+2.7V to +6.5V) or dual supplies
(±1.35V to ±3.25V) with a common-mode voltage range
that extends 250mV beyond VEEand VCC. They are capa­ble of driving 250Ω loads. The MAX4122/MAX4123/
MAX4126/MAX4127/MAX4129 have a 5MHz gain band­width product, while the decompensated MAX4124/
MAX4125/MAX4128 (stable at closed-looped gains of
10 or greater) have a 25MHz gain bandwidth product. In
addition, the MAX4123/MAX4125/MAX4127 feature a
shutdown mode in which the outputs are placed in a
high-impedance state and the supply current is reduced
to only 25µA per amplifier.

With their rail-to-rail input common-mode range and
output swing, these amplifiers are ideal for low-voltage
single-supply operation. Although the minimum operat­ing voltage is specified at 2.7V, the devices typically
operate down to 1.8V. In addition, low offset voltage
and high speed make them the ideal signal-condition­ing stages for precision, low-voltage, data-acquisition
systems. The MAX4122 and MAX4124 come in the

space-saving 5-pin SOT23-5 package.

________________________Applications

Battery-Powered Instruments
Portable Equipment
Data-Acquisition Systems
Signal Conditioning
Low-Power, Low-Voltage Applications

Features

♦ 5-Pin SOT23 Package (MAX4122/4)
♦ +2.7V to +6.5V Single-Supply Operation
♦ Rail-to-Rail Input Common-Mode Voltage Range
♦ Rail-to-Rail Output Voltage Swing
♦ 5MHz Gain-Bandwidth Product (MAX4122/3/6/7/9)

25MHz Gain-Bandwidth Product (MAX4124/5/8)

♦ 650µA Quiescent Current per Amplifier
♦ 25µA Shutdown Function (MAX4123/5/7)
♦ 200µV Offset Voltage
♦ No Phase Reversal for Overdriven Inputs
♦ Drive 250Ω Loads
♦ Stable with 500pF Capacitive Loads
♦ Unity-Gain Stable (MAX4122/3/6/7/9)

Stable at Gains ≥ 10V/V (MAX4124/5/8)

MAX4122–MAX4129

Single/Dual/Quad, Wide-Bandwidth, Low-Power,

Single-Supply Rail-to-Rail I/O Op Amps

________________________________________________________________

Maxim Integrated Products

1

MAX187

MAX4123

SHDN

3

1

2

4

5

6

8

7

V

DD

+5V

AIN

VREF

GND

DOUT

SERIAL

INTERFACE

SCLK

CS

__________Typical Operating Circuit

Selection Table

19-1087; Rev 1; 8/97

PART

MAX4122EUK
MAX4123C/D

MAX4123ESA -40°C to +85°C

0°C to +70°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

5 SOT23-5
Dice*
8 SO

Ordering Information

Ordering Information continued at end of data sheet.

*

Dice are specified at TA= +25°C, DC parameters only.

Pin Configurations appear at end of data sheet.

MARKING

INFO.

AAAZ

—
—

BW

(MHz)

AMPS

PER

PKG.

MAX4122 5 1
MAX4123 5 1

PART

MAX4124 25 1
MAX4125 25 1
MAX4126 5 2
MAX4127 5 2
MAX4128 25 2
MAX4129 5 4

SHUT­DOWN
MODE

—

Yes

—

Yes

—

Yes

—
—

PIN-

PACKAGE

5 SOT23-5
8 SO/µMAX
5 SOT23-5
8 SO/µMAX
8 SO/µMAX
14 SO
8 SO/µMAX
14 SO

MAX4123EUA -40°C to +85°C 8 µMAX —

For free samples & the latest literature: http://www.maxim-ic.com, or phone [phone].
For small orders, phone [phone] ext. 3468.

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

MAX4122–MAX4129

Single/Dual/Quad, Wide-Bandwidth, Low-Power,
Single-Supply Rail-to-Rail I/O Op Amps

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V

OUT

= VCC/2, RLtied to VCC/2, SHDN ≥ 2V (or open), 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.

Supply Voltage (VCC-VEE).....................................................7.5V

IN+, IN-, SHDN Voltage...................(V

CC

+ 0.3V) to (VEE- 0.3V)

Output Short-Circuit Duration (Note 1).......................Continuous

(short to either supply)

Continuous Power Dissipation (T

A

= +70°C)

5-pin SOT23-5 (derate 7.1mW/°C above +70°C) .........571mW

8-pin SO (derate 5.88mW/°C above +70°C).................471mW

8-pin µMAX (derate 4.10mW/°C above +70°C)............330mW

14-pin SO (derate 8.00mW/°C above +70°C)...............640mW

Operating Temperature Range

MAX412_E__ ....................................................-40°C to +85°C

Maximum Junction Temperature .....................................+150°C

Storage Temperature Range.............................-65°C to +160°C

Lead Temperature (soldering, 10sec).............................+300°C

V

CM

= VEEto V

CC

MAX4123ESA/MAX4125ESA

CONDITIONS

nA±1 ±12Input Offset Current

nA±50 ±150Input Bias Current

72 80

Ω0.1Output Resistance

kΩ500Differential Input Resistance

78 98

dB78 100Power-Supply Rejection Ratio

UNITSMIN TYP MAXPARAMETER

V

OUT

= 0.4V to 4.6V, RL= 250Ω 75 84

dBLarge-Signal Voltage Gain

V

VEE- VCC+

0.25 0.25

Common-Mode Input
Voltage Range

Note 1: Provided that the maximum package power-dissipation rating is met.

MAX4122EUK/MAX4124EUK ±0.35 ±1.50
MAX4123EUA/MAX4125EUA ±0.35 ±1.20

±0.20 ±0.60

MAX4126ESA/MAX4127ESD/MAX4128ESA
MAX4126EUA/MAX4128EUA ±0.40 ±1.50
MAX4129ESD ±0.35 ±1.50

Input Offset Voltage

±0.25 ±0.75

VCM=
VEEto V

CC

MAX4123ESA/MAX4125ESA

mV

VCM= VEEto V

CC

-1.5V < V

DIFF

< 1.5V

VCC= 2.7V to 6.5V
AV= 1
SHDN < 0.8V, V

OUT

= 0V to V

CC

µA±0.1 ±1Off-Leakage Current

MAX4122EUK/MAX4124EUK

(V

EE

-

0.25) <
VCM<
(VCC+

0.25V)

67 90

Common-Mode Rejection Ratio

MAX4129ESD

MAX4126EUA/MAX4128EUA

64 84

dB

66 86

MAX4126ESA/MAX4127ESD/MAX4128ESA

MAX4123EUA/MAX4125EUA

74 94

68 88

VCC= 5V

V

OUT

= 0.4V to 2.3V, RL= 250Ω

V

OUT

= 0.25V to 2.45V, RL= 100kΩ

V

OUT

= 0.25V to 4.75V, RL= 100kΩ

VCC= 2.7V

92 104

94 106

MAX4122–MAX4129

Single/Dual/Quad, Wide-Bandwidth, Low-Power,

Single-Supply Rail-to-Rail I/O Op Amps

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V

OUT

= VCC/2, RLtied to VCC/2, SHDN ≥ 2V (or open), TA= -40°C to +85°C, unless

otherwise noted.)

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V

OUT

= VCC/2, RLtied to VCC/2, SHDN ≥ 2V (or open), TA= +25°C, unless

otherwise noted.)

RL= 100kΩ

CONDITIONS

20 35

Low

V2.7 6.5Operating Supply-Voltage Range

SHDN > 0.8V,
MAX4123/MAX4125/MAX4127

240 290

12 20

VOL- V

EE

125 170

MAX4122/
MAX4123/
MAX4124/
MAX4125

V

0.8

mA50Output Short-Circuit Current

µA

40 60

Shutdown Supply Current
per Amplifier

UNITS

MIN TYP MAX

PARAMETER

VCC- V

OH

VOL- V

EE

VCC- V

OH

RL= 250Ω

VCC- V

OH

VOL- V

EE

VCC- V

OH

RL= 250Ω

RL= 100kΩ

25 40

mV

280 330

15 30

VOL- V

EE

Output Voltage Swing

180 230

MAX4126/
MAX4127/
MAX4128/
MAX4129

High 2.0

SHDN Logic Threshold

MAX4123/MAX4125/MAX4127

VCC= 5V

MAX4123/MAX4125/MAX4127 µA±1 ±3

SHDN Input Current

VCC= 2.7V

VCM= V

OUT

= VCC/2 µA

650 750

VCC= 5V 725 825

Supply Current per Amplifier

VCC= 2.7V 25 40

MAX4122EUK/MAX4124EUK

(VEE-

0.2V) <
VCM<
(VCC+

0.2V)

MAX4123ESA/MAX4125ESA

MAX4129ESD

MAX4122EUK/MAX4124EUK

MAX4123ESA/MAX4125ESA

CONDITIONS

±3.50

62

VCM= VEEto V

CC

MAX4123EUA/MAX4125EUA

V

VEE- VCC+

0.20 0.20

Common-Mode Input
Voltage Range

mV

±4.40

±0.75

MAX4126ESA/MAX4127ESD/MAX4128ESA
MAX4126EUA/MAX4128EUA ±4.70
MAX4129ESD

Common-Mode Rejection Ratio

±4.00

Input Offset Voltage

±0.95

VCM=
VEEto V

CC

nA±18

MAX4126EUA/MAX4128EUA

Input Offset Current

µV/°C±2

60

dB

58

MAX4126ESA/MAX4127ESD/MAX4128ESA

Input Offset Voltage Tempco

MAX4123EUA/MAX4125EUA

74

60

76

UNITSMIN TYP MAXPARAMETER

VCM= VEEto V

CC

nA±160Input Bias Current

MAX4122–MAX4129

Single/Dual/Quad, Wide-Bandwidth, Low-Power,
Single-Supply Rail-to-Rail I/O Op Amps

4 _______________________________________________________________________________________

86

Large-Signal Voltage Gain

68

V

OUT

= 0.25V to 4.75V, RL= 100kΩ

V

OUT

= 0.4V to 4.6V, RL= 250Ω

VCC= 5V

84

dB

66

V

OUT

= 0.25V to 2.45V, RL= 100kΩ

V

OUT

= 0.4V to 2.3V, RL= 250Ω

VCC= 2.7V

Off-Leakage Current ±12 µA

SHDN < 0.8V, V

OUT

= 0V to V

CC

MAX4122/
MAX4123/
MAX4124/
MAX4125

190VOL- V

EE

25

300

MAX4126/
MAX4127/
MAX4128/
MAX4129

250

Output Voltage Swing

VOL- V

EE

35

350

mV

50

RL= 100kΩ

RL= 250Ω

VCC- V

OH

VOL- V

EE

VCC- V

OH

40

RL= 100kΩ

RL= 250Ω

VCC- V

OH

VOL- V

EE

VCC- V

OH

PARAMETER

MIN TYP MAX

UNITS

Shutdown Supply Current
per Amplifier

70

µA

Power-Supply Rejection Ratio 74 dB

0.8
V

SHDN < 0.8V,
MAX4123/MAX4125/MAX4127

Operating Supply-Voltage Range 2.7 6.5 V

775

µAVCM= V

OUT

= VCC/2

VCC= 2.7V

SHDN Input Current

Low

±3

CONDITIONS

µA

50

MAX4123/MAX4125/MAX4127

VCC= 2.7V to 6.5V

VCC= 2.7V
VCC= 5V

MAX4123/MAX4125/MAX4127

Supply Current per Amplifier

SHDN Logic Threshold

850

2.0High

VCC= 5V

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V

OUT

= VCC/2, RLtied to VCC/2, SHDN ≥ 2V (or open), TA= -40°C to +85°C, unless

otherwise noted.)

f = 10kHz, V

OUT

= 2Vp-p,

MAX4122/23/26/27/29 (A

V

= 1)

MAX4124/25/28 (AV≥ 10), V

OUT

= 2V step

MAX4122/23/26/27/29

VCC= 0V to 3V step, V

OUT

= VCC/2

64

MAX4124/25/28 (AV≥ 10)

MAX4124/25/28 (AV≥ 10)

degrees

MAX4122/23/26/27/29 (AV= 1), V

OUT

= 2V step

MAX4122/23/26/27/29

CONDITIONS

MAX4122/23/26/27/29

µs

1.3

60

5

Phase Margin

MAX4124/25/28 (AV≥ 10)

MAX4122/23/26/27/29

MHz

25

Gain-Bandwidth Product

12

MAX4124/25/28 (AV≥ 10)

%0.003

dB

Total Harmonic Distortion

10

Gain Margin

Settling Time to 0.01%

2.0

µs1Turn-On Time

V/µs

10

Slew Rate

2

UNITSMIN TYP MAXPARAMETER

AC ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +6.5V, VEE= 0V, SHDN ≥ 2V (or open), TA= +25°C, unless otherwise noted.)

MAX4122–MAX4129

Single/Dual/Quad, Wide-Bandwidth, Low-Power,

Single-Supply Rail-to-Rail I/O Op Amps

_______________________________________________________________________________________ 5

60

-40
100 1k 10k 1M 10M100k 100M

MAX4322/26/29

GAIN AND PHASE vs. FREQUENCY

-20

FREQUENCY (Hz)

GAIN (dB)

0

20

40

PHASE

GAIN

AV = +1000
NO LOAD

PHASE (DEGREES)

180
144

72

0

-72

-144

-180

-108

-36

36

108

MAX4322/26/29-01

60

-40
100 1k 10k 1M 10M100k 100M

MAX4122/23/26/27/29

GAIN AND PHASE vs. FREQUENCY

(WITH C

LOAD

)

-20

MAX4122/29-02

FREQUENCY (Hz)

GAIN (dB)

0

20

40

PHASE

GAIN

AV = +1000
R

L

= ∞

C

L

= 500pF

PHASE (DEGREES)

180
144

72

0

-72

-144

-180

-108

-36

36

108

0

-100

10 100 1k 100k 1M 10M10k 100M

MAX4122/23/26/27/29

POWER-SUPPLY REJECTION

vs. FREQUENCY

-80

MAX4122/29-03

FREQUENCY (Hz)

PSR (dB)

-60

-40

-20

AV = +1

__________________________________________Typical Operating Characteristics

(VCC= +5V, VEE= 0V, VCM= VCC/2, TA = +25°C, unless otherwise noted.)

AC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.7V to +6.5V, VEE= 0V, SHDN ≥ 2V (or open), TA= +25°C, unless otherwise noted.)

MAX4124/25/28 (AV≥ 10)

MAX4122/23/26/27/29 (AV= 1)

MAX4126/27/28/29

f = 1kHz

f = 1kHz

VCC= 3V, V

OUT

= VCC/2,

MAX4123/25/27

CONDITIONS

pF

500

Capacitive Load Stability

500

dB135Amp-Amp Isolation

pA/√Hz

0.4Input Noise Current Density

nV/√Hz

22Input Noise Voltage Density

pF3Input Capacitance

µs

0.2

SHDN Delay

1

UNITSMIN TYP MAXPARAMETER

Enable
Disable

60

-40
100 1k 10k 100k 1M 10M

MAX4124/25/28

GAIN AND PHASE vs. FREQUENCY

-20

MAX14122/29-04

FREQUENCY (Hz)

GAIN (dB)

PHASE (DEGREES)

0

20

40

180
144

-180

-144

-108

-72

-36

36
0

108
72

AV = +1000
NO LOAD

GAIN

PHASE

60

-40
100 1k 10k 1M 10M100k 100M

MAX4124/25/28

GAIN AND PHASE vs. FREQUENCY

(WITH C

LOAD

)

-20

MAX4122/29-05

FREQUENCY (Hz)

GAIN (dB)

0

20

40

PHASE

GAIN

AV = +1000
R

L

= ∞

C

L

= 500 pF

PHASE (DEGREES)

180
144

72

0

-72

-144

-180

-108

-36

36

108

0

-100

10 100 1k 100k 1M 10M10k 100M

MAX4124/25/28

POWER-SUPPLY REJECTION

vs. FREQUENCY

-80

MAX4122/29-06

FREQUENCY (Hz)

PSR (dB)

-60

-40

-20

AV = +10