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________________General Description

The MAX4040–MAX4044 family of micropower op amps

operates from a single +2.4V to +5.5V supply or dual

and output capabilities. These amplifiers provide a

90kHz gain-bandwidth product while using only 10µA of

supply current per amplifier. The MAX4041/MAX4043

have a low-power shutdown mode that reduces supply

current to less than 1µA and forces the output into a

high-impedance state. The combination of low-voltage

operation, rail-to-rail inputs and outputs, and ultra-low

power consumption makes these devices ideal for any

portable/battery-powered system.

These amplifiers have outputs that typically swing to

within 10mV of the rails with a 100k

Ω load. Rail-to-rail

input and output characteristics allow the full power-

supply voltage to be used for signal range. The combi-

nation of low input offset voltage, low input bias current,

and high open-loop gain makes them suitable for low-

power/low-voltage precision applications.

The MAX4040 is offered in a space-saving 5-pin SOT23

package. All specifications are guaranteed over the

-40°C to +85°C extended temperature range.

________________________Applications

Battery-Powered

Strain Gauges

Systems

Sensor Amplifiers

Portable/Battery-Powered

Cellular Phones

Electronic Equipment

Notebook Computers

Digital Scales

PDAs

____________________________Features

o Single-Supply Operation Down to +2.4V

o Ultra-Low Power Consumption:

10µA Supply Current per Amplifier

1µA Shutdown Mode (MAX4041/MAX4043)

o Rail-to-Rail Input Common-Mode Range

o Outputs Swing Rail-to-Rail

o No Phase Reversal for Overdriven Inputs

o 200µV Input Offset Voltage

o Unity-Gain Stable for Capacitive Loads up to 200pF

o 90kHz Gain-Bandwidth Product

o Available in Space-Saving 5-Pin SOT23 and

8-Pin µMAX Packages

Single/Dual/Quad, Low-Cost, SOT23,

Micropower Rail-to-Rail I/O Op Amps

________________________________________________________________

Maxim Integrated Products

1

IN-

IN+

15

OUT

MAX4040

SOT23-5

TOP VIEW

2

34

19-1377; Rev 0; 5/98

PART

MAX4040EUK-T

MAX4040EUA

MAX4040ESA

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

5 SOT23-5

8 µMAX

8 SO

Ordering Information

Pin Configurations continued at end of data sheet.

NO. OF

AMPS

PIN-PACKAGE

MAX4040

1

5-pin SOT23,

8-pin µMAX/SO

PART

MAX4041

1

8-pin µMAX/SO

SHUTDOWN

—

Yes

MAX4044

4

14-pin SO

—

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

MAX4042EUA

MAX4042ESA

-40°C to +85°C

-40°C to +85°C

8 µMAX

8 SO

MAX4044ESD

-40°C to +85°C

14 SO

SOT

TOP MARK

ACGF

—

—

—

—

—

Pin Configurations

Selector Guide

MAX4042

2

8-pin µMAX/SO

—

MAX4043

2

10-pin µMAX/

14-pin SO

Yes

MAX4041ESA

MAX4041EUA

-40°C to +85°C

-40°C to +85°C

8 SO

8 µMAX

—

—

MAX4043EUB

MAX4043ESD

-40°C to +85°C

-40°C to +85°C

10 µMAX

14 SO

—

—