General Description

The MAX4122–MAX4129 family of operational amplifiers

combines wide bandwidth and excellent DC accuracy with

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

ble of driving 250

Ω loads. The MAX4122/MAX4123/

MAX4126/MAX4127/MAX4129 have a 5MHz gain band-

width 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 operat-

ing 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-condition-

ing 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

o 5-Pin SOT23 Package (MAX4122/4)

o +2.7V to +6.5V Single-Supply Operation

o Rail-to-Rail Input Common-Mode Voltage Range

o Rail-to-Rail Output Voltage Swing

o 5MHz Gain-Bandwidth Product (MAX4122/3/6/7/9)

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

o 650µA Quiescent Current per Amplifier

o 25µA Shutdown Function (MAX4123/5/7)

o 200µV Offset Voltage

o No Phase Reversal for Overdriven Inputs

o Drive 250

Ω Loads

o Stable with 500pF Capacitive Loads

o Unity-Gain Stable (MAX4122/3/6/7/9)

Stable at Gains

≥ 10V/V (MAX4124/5/8)

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

+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.

*

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

SHUT-

DOWN

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 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

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