ADM3491

PRODUCTION

3.3 V, Low Power, RS-485/RS-422 Transceiver (Full Duplex, 10 Mbps, Driver/Receiver Enable)

Data Sheet (Rev. E) Product Selection Table

Part Models: 3
1ku List Price: Starting From $2.46

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Overview

Operate with 3.3 V supply
Interoperable with 5 V logic
EIA RS-422 and RS-485 compliant over full common-mode range
Data rate options: 10 Mbps
Half- and full-duplex options
2 nA supply current in shutdown mode

Up to 32 transceivers on the bus
−7 V to +12 V bus common-mode range
Specified over the –40°C to +85°C temperature range
8 ns skew
14-lead SOIC packages

The ADM3491 is a low power differential line transceiver designed to operate using a single +3.3 V power supply. Low power consumption coupled with a shutdown mode make it ideal for power sensitive applications. It is suitable for communication on multipoint bus transmission lines.

Part Models: 3
1ku List Price: Starting From $2.46

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADM3491ARZ	14-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM3491ARZ-REEL	14-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM3491ARZ-REEL7	14-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 24, 2017 - 17_0142 ADM3485 and ADM3491 Low Power, RS-485/RS-422 Transceiver Product Alternate Fabrication Foundry at ADI, Limerick, Ireland
		PCN17_0142_Form Material_Report Qualification Results Summary Detailed Change Description
ADM3491ARZ	PRODUCTION
ADM3491ARZ-REEL	PRODUCTION
ADM3491ARZ-REEL7	PRODUCTION
Nov 23, 2010 - 10_0004 Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor
		PCN10_0004_Form Material_Report ADI0012 Reliability Report
ADM3491ARZ	PRODUCTION
ADM3491ARZ-REEL	PRODUCTION
ADM3491ARZ-REEL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

ADM3491 IBIS Models 1

ADM3491ARZ IBIS Model

Evaluation Kits

Standard RS-485 Full-Duplex (14-lead SOIC) Evaluation Board, EVAL-RS485FDEBZ

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Product Details

The EVAL-RS485FDEBZ allows quick and easy evaluation of full-duplex RS-485 transceivers with standard 14-lead SOIC footprints. The evaluation board allows interfacing via screw terminal block to digital I/O for driver input (DI), receiver output (RO), driver enable (DE) and receiver output (RO). Bus signals A, B, Y and Z (full-duplex bus) can be connected to a bus screw terminal block. Termination resistors are fitted across A and B, as well as Y and Z. These can be connected in half-duplex configuration (A to Y, B to Z), in order to evaluate the RS-485 driver. Footprints are provided for pull-up and pull-down (biasing resistors) on the receiver inputs in order to provide the option to evaluate an RS-485 receiver with this configuration.

Devices for evaluation on the board must be ordered separately.

Resources

UG-543:Evaluation Boards for Full-Duplex and Half-Duplex RS-485 Transceivers (Rev.A)
4/19/2013

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ADM3491

Overview

Documentation

Data Sheet 1

Application Note 2

Technical Articles 1

Video 1

Webcast 1