DS75110A

Dual Line Drivers

General Description

The DS75110A is a dual line driver with independent chan-

nels, common supply and ground terminals featuring con-

stant current outputs. These drivers are designed for opti-

mum performance when used with the DS75107, DS75108

line receivers.

The output current of the DS75110A is nominally 12 mA and

may be switched to either of two output terminals with the

appropriate logic levels at the driver input.

Separate or common control inputs are provided for in-

creased logic versatility. These control or inhibit inputs allow

the output current to be switched off (inhibited) by applying

low logic levels to the control inputs. The output current in

the inhibit mode, I

loading is induced. This is highly desirable in system applica-

tions using party line data communications.

Features

n Improved stability over supply voltage and temperature

ranges

n Constant current, high impedance outputs

n High speed: 15 ns max propagation delay

n Standard supply voltages

n Inhibitor available for driver selection

n High common mode output voltage range

(−3.0V to 10V)

n TTL input compatibility

Connection Diagram

Function Table

Inputs

Outputs

Logic

Inhibitor

1

2

A/B

INH

A1/B1

A2/B2

X

X

L

X

Off

Off

X

X

X

L

Off

Off

L

X

H

H

Off

On

X

L

H

H

Off

On

HHHH

On

Off

H = High

L = Low

X = Don’t Care

14–Lead Dual-In-Line Package

and SO-14 Package

DS009619-1

Top View

Order Number DS75110AM or DS75110AN

See NS Package Number M14A or N14A

January 1996

© 1999 National Semiconductor Corporation

DS009619

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