DS3691V National Semiconductor, DS3691V Datasheet

DS3691V

Manufacturer Part Number

DS3691V

Description

RS-422/RS-423 Line Drivers With TRI-STATE Outputs

Manufacturer

National Semiconductor

Datasheet

1.DS3691V.pdf (10 pages)

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DS1691A/DS3691

(RS-422/RS-423) Line Drivers with TRI-STATE

General Description

The DS1691A/DS3691 are low power Schottky TTL line driv-

ers designed to meet the requirements of EIA standards

RS-422 and RS-423. They feature 4 buffered outputs with

high source and sink current capability with internal short cir-

cuit protection. A mode control input provides a choice of op-

eration either as 4 single-ended line drivers or 2 differential

line drivers. A rise time control pin allows the use of an exter-

nal capacitor to slow the rise time for suppression of near

end crosstalk to other receivers in the cable. Rise time ca-

pacitors are primarily intended for waveshaping output sig-

nals in the single-ended driver mode. Multipoint applications

in differential mode with waveshaping capacitors is not al-

lowed.

With the mode select pin low, the DS1691A/DS3691 are

dual-differential line drivers with TRI-STATE outputs. They

feature

mode and 0V output unbalance when operated with

supply.

Connection Diagrams

Ordering Information

TRI-STATE

Order Number

DS3691M

DS3691N

For Complete Military Product Specifications, refer to the appropriate SMD or MDS.

DS1691AJ/883

is a registered trademark of National Semiconductor Corporation.

10V output common-mode range in TRI-STATE

With Mode Select LOW

(RS-422 Connection)

Top View

DS005783

Package Type

DS005783-1

Ceramic DIP

SO Package

Molded DIP

Features

n Dual RS-422 line driver with mode pin low, or quad

n TRI-STATE outputs in RS-422 mode

n Short circuit protection for both source and sink outputs

n Outputs will not clamp line with power off or in

n 100

n Low I

n Low current PNP inputs compatible with TTL, MOS and

n Pin compatible with AM26LS30

RS-423 line driver with mode pin high

TRI-STATE

CMOS

RS-422: I

RS-423: I

transmission line drive capability

and I

NS Package Number

With Mode Select HIGH

(RS-423 Connection)

= 9 mA/driver typ

= 4.5 mA/driver typ:

power consumption

M16A

N16E

J16A

Top View

= 2.5 mA/driver typ

Outputs

DS005783-2

www.national.com

July 1998

Related parts for DS3691V

DS3691V Summary of contents

Page 1

... DS3691N For Complete Military Product Specifications, refer to the appropriate SMD or MDS. DS1691AJ/883 TRI-STATE ® registered trademark of National Semiconductor Corporation. © 1998 National Semiconductor Corporation DS005783 Features n Dual RS-422 line driver with mode pin low, or quad RS-423 line driver with mode pin high ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Maximum Power Dissipation (Note 1) at 25˚C Cavity Package Molded DIP Package SO Package Input Voltage Output Voltage (Power OFF) ...

Page 3

AC Electrical Characteristics = 25˚ Symbol Parameter = 5V, MODE SELECT = 0.8V RS-422 CONNECTION Output Rise Time r t Output Fall Time f t Output Propagation Delay PDH t Output Propagation Delay PDL t ...

Page 4

AC Electrical Characteristics = 25˚ Symbol Parameter = 5V, V −5V, MODE SELECT = 2.4V RS-423 CONNECTION Output Propagation Delay PDH t Output Propagation Delay PDL AC Test Circuits and Switching Time Waveforms www.national.com ...

Page 5

AC Test Circuits and Switching Time Waveforms FIGURE 3. Rise Time Control for RS-423 Switching Waveforms (Continued) DS005783-7 DS005783-9 FIGURE 4. TRI-STATE Delays FIGURE 5. Typical Output Voltage 5 DS005783-8 DS005783-10 DS005783-11 www.national.com ...

Page 6

Truth Table Operation RS-422 RS-423 Typical Application Information www.national.com Inputs Outputs Mode A (D) B ( TRI-STATE TRI-STATE ...

Page 7

Typical Application Information Differential Application with Rise Time Control * Note: Controlled edge allows longer stub lengths. Multiple Drivers are NOT allowed. Typical Rise Time Control Characteristics (Continued) Dual RS-423 Inverting Driver (RS-423 Mode) Rise Time vs External Capacitor DS005783-12 ...

Page 8

8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number DS1691AJ/883 NS Package Number J16A SO Package (M) Order Number DS3691M NS Package Number M16A 9 www.national.com ...

Page 10

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

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