International Airport Industrial Park

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Mailing Address: PO Box 11400

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Tucson, AZ 85734

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Street Address: 6730 S. Tucson Blvd.

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Tucson, AZ 85706

Tel: (520) 746-1111

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Twx: 910-952-1111

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Cable: BBRCORP

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Telex: 066-6491

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FAX: (520) 889-1510

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Immediate Product Info: (800) 548-6132

High Current—High Power

OPERATIONAL AMPLIFIER

FEATURES

APPLICATIONS

© 1985 Burr-Brown Corporation

PDS-599A

Printed in U.S.A. December, 1993

OPA511

DESCRIPTION

q WIDE SUPPLY RANGE:

q SERVO AMPLIFIER

q HIGH OUTPUT CURRENT: 5A Peak

q MOTOR DRIVER

q CLASS A/B OUTPUT STAGE:

q SYNCRO EXCITATION

Low Distortion

q AUDIO AMPLIFIER

q SMALL TO-3 PACKAGE

q TEST PIN DRIVER

Out

R

CL+

R

CL–

8

1

2

Current

Limit

Bias

Circuit

4

6

–V

S

3

–V

S

5

providing excellent low-level signal fidelity and

high output voltage swing. The reduced internal parts

count made possible with this

bias IC improves

performance and reliability.

This hybrid integrated circuit is housed in a hermeti-

cally sealed TO-3 package and all circuitry is electri-

cally isolated from the case. This allows direct mount-

ing to a chassis or heat sink without cumbersome

insulating hardware and provides optimum heat trans-

fer.

The OPA511 is a high voltage, high current opera-

tional amplifier designed to drive a wide variety of

resistive and reactive loads. Its complementary class

A/B output stage provides superior performance in

applications requiring freedom from cross-over

distortion. User-set current limit circuitry provides

protection to the amplifier and load in fault conditions.

The OPA511 employs a laser-trimmed monolithic

integrated circuit to bias the output transistors,

®