Features Dual RS-422 line driver with mode pin low, or quad RS-423 line driver with mode pin high TRI-STATE outputs in RS-422 mode Short circuit protection for both source and sink outputs Outputs will not clamp line with power off or in TRI-STATE 100 transmission line drive capability Low ICC and IEE power consumption RS-422: ICC = 9 mA/driver typ RS-423: ICC = 4.5 mA/driver typ: I EE = 2.5 mA/driver typ Low current PNP inputs compatible with TTL, MOS and CMOS Pin compatible with AM26LS30 Description The DS1691A/DS3691 are low power Schottky TTL line drivers 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 circuit protection. A mode control input provides a choice of operation either as 4 single-ended line drivers or 2 differential line drivers. A rise time control pin allows the use of an external capacitor to slow the rise time for suppression of near end crosstalk to other receivers in the cable. Rise time capacitors are primarily intended for waveshaping output signals in the single-ended driver mode. Multipoint applications in differential mode with waveshaping capacitors is not allowed. With the mode select pin low, the DS1691A/DS3691 are dual-differential line drivers with TRI-STATE outputs. They feature ±10V output common-mode range in TRI-STATE mode and 0V output unbalance when operated with ±5V supply.

Typical Application click for larger image	Connection Diagram click for larger image

Datasheets

Title		Size	Date	Other Language
	DS3691 RS-422/RS-423 Line Drivers With TRI-STATE Outputs	309 Kbytes	9-Sep-04	日本語

Application Notes

Title		Size	Date	Other Language
	AN-967: Application Note 967	58 Kbytes	5-Oct-98
	AN-214: Application Note 214 Transmission Line Drivers and Receivers for EIA Standards RS‐422 and RS‐423	338 Kbytes	4-Oct-04

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS3691M/NOPB DS3691M RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 292 DIGI-KEY Worldwide 484 MOUSER Worldwide 624	$0.65 each at 1K+ pcs	rail of 48
DS3691MX/NOPB DS3691MX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 2500 DIGI-KEY Worldwide 0	$0.65 each at 1K+ pcs	reel of 2500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
DS3691N	AM26LS30	PHILIPS	05 Mar 2008
DS3691V	NONE	NONE	08 Sep 1998
DS3691VX	NONE	NONE	08 Sep 1998

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS3691.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS3691 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
DS3691M/NOPB DS3691M	139.49 140	SOIC NARROW	16	1 1	260 235	Detail	Download	N/A	NSUZXYTTE# DS3691M AM26LS30SC
DS3691MX/NOPB DS3691MX	139.49 140	SOIC NARROW	16	1 1	260 235	Detail	Download	N/A	NSUZXYTTE# DS3691M AM26LS30SC

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS3691.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS3691 is located at RoHS Status.

CAD Symbols and Models Download DS3691 CAD Symbols

Models N/A

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
DS3691N	AM26LS30	PHILIPS	05 Mar 2008
DS3691V	NONE	NONE	08 Sep 1998
DS3691VX	NONE	NONE	08 Sep 1998