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General Description

The MAX4493/MAX4494/MAX4495 single/dual/quad

general-purpose operational amplifiers are designed

for use in systems powered with dual supplies from

±2.25V to ±5.5V. These op amps provide a unity-gain

bandwidth of 5MHz with only 770µA of quiescent cur-

rent per amplifier. The wide input common-mode range

extends from 200mV beyond the negative rail to within

1.5V of the positive supply rail while the output swings

Ω) of either rail.

These amplifiers have excellent (110dB) open-loop

gain with very low THD+N of 0.002% (f = 1kHz). The

single MAX4493 is available in a tiny 5-pin SC70 pack-

age and the dual MAX4494 is available in the space-

saving 8-pin SOT23. The quad MAX4495 is available in

both 14-pin TSSOP and 14-pin SO packages. All prod-

ucts are rated at the automotive temperature range of

-40°C to +125°C.

________________________Applications

Battery-Powered Systems

DAC Output Amplifiers

Industrial Control Systems

Voltage Reference Generators

Signal Conditioning

Features

o 770µA Supply Current per Amplifier

o Operates from Dual ±2.25V to ±5.5V Supplies

o 5MHz Gain-Bandwidth Product

o Input Voltage Range Extends 200mV Below the

Negative Rail

o Low THD+N of 0.002% (f = 1kHz)

o No Phase Reversal for Overdriven Inputs

o Unity-Gain Stable

o Available in Space-Saving Packages

5-Pin SC70 (MAX4493)

8-Pin SOT23 (MAX4494)

14-Pin TSSOP (MAX4495)

SC70, Low-Power, General-Purpose,

Dual-Supply, Rail-to-Rail Op Amps

________________________________________________________________ Maxim Integrated Products

1

OUT

IN-

IN+

MAX4493

SC70/SOT23-5

TOP VIEW

2

34

Pin Configurations

19-1797; Rev 1; 10/01

Ordering Information

Pin Configurations continued at end of data sheet.

PART

TEMP.

RANGE

PIN-

PACKAGE

TOP

MARK

MAX4493AXK-T

-40

°C to +125°C 5 SC70-5

ABR

MAX4493AUK-T

-40

°C to +125°C 5 SOT23-5

ADPG

MAX4494AKA-T

-40

°C to +125°C 8 SOT23-8

AAEM

MAX4494AUA

-40

°C to +125°C 8 µMAX

—

MAX4494ASA

-40

°C to +125°C 8 SO

—

MAX4495AUD

-40

°C to +125°C 14 TSSOP

—

MAX4495ASD

-40

°C to +125°C 14 SO

—

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

Typical Operating Characteristic

TOTAL HARMONIC DISTORTION PLUS

NOISE vs. FREQUENCY

1

100k

10k

1k

100

10

FREQUENCY (Hz)

0

0.002

0.001

0.004

0.006

0.008

0.007

0.003

0.005

Typical Operating Circuit appears at end of data sheet.