ISO150

Dual, Isolated, Bi-Directional

DIGITAL COUPLER

q REPLACES HIGH-PERFORMANCE

OPTOCOUPLERS

q DATA RATE: 80M Baud, typ

q LOW POWER CONSUMPTION:

25mW Per Channel, max

q TWO CHANNELS, EACH BI-DIRECTIONAL,

PROGRAMMABLE BY USER

q PARTIAL DISCHARGE TESTED: 2400Vrms

q CREEPAGE DISTANCE OF 16.5mm (DIP)

q LOW COST PER CHANNEL

q PLASTIC DIP AND SOIC PACKAGES

q DIGITAL ISOLATION FOR A/D, D/A

CONVERSION

q ISOLATED UART INTERFACE

q MULTIPLEXED DATA TRANSMISSION

q ISOLATED PARALLEL TO SERIAL

INTERFACE

q TEST EQUIPMENT

q MICROPROCESSOR SYSTEM INTERFACE

q ISOLATED LINE RECEIVER

q GROUND LOOP ELIMINATION

FEATURES

APPLICATIONS

Channel 2

Channel 1

Side A

Side B

DESCRIPTION

The ISO150 is a two-channel, galvanically isolated

data coupler capable of data rates of 80MBaud, typi-

cal. Each channel can be individually programmed to

transmit data in either direction.

Data is transmitted across the isolation barrier by

coupling complementary pulses through high voltage

0.4pF capacitors. Receiver circuitry restores the pulses

to standard logic levels. Differential signal transmis-

sion rejects isolation-mode voltage transients up to

1.6kV/

µs.

ISO150 avoids the problems commonly associated

with optocouplers. Optically isolated couplers require

high current pulses and allowance must be made for

LED aging. The ISO150’s Bi-CMOS circuitry oper-

ates at 25mW per channel.

ISO150 is available in a 24-pin DIP package and in a

28-lead SOIC. Both are specified for operation from

–40˚C to 85˚C.

© 1993 Burr-Brown Corporation

PDS-1213B

Printed in U.S.A. August, 1994

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