ISO150

1

FEATURES

DESCRIPTION

APPLICATIONS

Channel 2

Channel 1

Side A

Side B

G

A

D

2A

R/T

2A

D

2B

V

SB

R/T

2B

V

SA

D

1A

R/T

1A

28

27

26

17

16

15

1

2

3

12

13

14

ISO150

DUAL, ISOLATED, BIDIRECTIONAL DIGITAL COUPLER

• Replaces High-Performance Optocouplers

• Data Rate: 80 M Baud, Typ

The ISO150 is a 2-channel, galvanically-isolated data

coupler capable of data rates of 80M Baud, typical.

• Low Power Consumption: 25 mW Per Channel,

Each channel can be individually programmed to

Max

transmit data in either direction.

• Two Channels, Each Bidirectional,

Data is transmitted across the isolation barrier by

Programmable by User

coupling complementary pulses through high voltage

• Partial Discharge Tested: 2400 Vrms

0.4 pF capacitors. Receiver circuitry restores the

• Creepage Distance of 7,2 mm

pulses to standard logic levels. Differential signal

transmission rejects isolation-mode voltage transients

• Low Cost Per Channel

up to 1.6 kV/

µs

• Available in SO Package

The ISO150 avoids problems commonly associated

• UL 1577 Certified

with optocouplers. Optically isolated couplers require

high current pulses and allowance must be made for

LED aging. The ISO150's Bi-CMOS circuitry operates

• Digital Isolation for A/D, D/A Conversion

at 25 mW per channel.

• Isolated RS-485 Interface

The ISO150 is available in an SO-28 and is specified

• Multiplexed Data Transmission

for operation from –40°C to 85°C.

• Isolated Parallel to Serial Interface

• Test Equipment

• Microprocessor System Interface

• Isolated Line Receiver

• Ground Loop Elimination

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2008, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.