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ADM3491:  3.3 V, Low Power, RS-485/RS-422 Transceiver (Full Duplex, 10 Mbps, Driver/Receiver Enable)

Product Details


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.

FEATURES and BENEFITS

  • 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

Functional Block Diagram for ADM3491

Enter values and click on PowerMe to find power solutions for this IC. PowerMe launch of ADIsimPower Voltage Regulator Design Tool
(Nominal) For IC being powered
Available System Voltage V Operating Voltage Rail V Load Current A

Documentation

Title Content Type File Type
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491: 3.3V Slew Rate Limited, Half and Full Duplex, RS-485/RS-422 Transceivers Data Sheet (Rev E, 11/2011) (pdf, 449 kB) Data Sheets PDF
AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format  (pdf, 671 kB) Application Notes PDF
AN-960: RS-485/RS-422 Circuit Implementation Guide  (pdf, 245 kB) Application Notes PDF
Solving Isolation Challenges in Industrial Automation
This webcast will discuss the role isolation plays in providing protection and reducing the system bit-error-rate, using the specific design challenges of an RS-485 network. Topics to be covered in this presentation will include: Why and when one should isolate, Types of isolation and their advantages, Design Considerations for an RS-485 node (and how this translates to design considerations for signal isolation) as well as many other topics.
Webcasts WEBCAST
EMC, CE Mark, IEC801... What's it all about?
... New devices to ease the job.
(Analog Dialogue, Vol. 30, No. 4)
Analog Dialogue HTML
Interface Primer  (doc, 38 kB)
... RS-232, RS-422, RS-423 and RS-485
Technical Articles DOC
ADM3491-1 to ADM3491 Specification Changes  (pdf, 21 kB) Technical Documentation PDF
Interface Parametric Search Product Selection Guide HTML
Brochure: Motor and Power Control Solutions  (pdf) Overview PDF
Industrial Automation Solutions  (pdf, 6110 kB) Overview PDF
Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4  (pdf, 1496 kB) Solutions Bulletins PDF
Test & Instrumentation Solutions Bulletin, Volume 10, Issue 3  (pdf, 1334 kB) Solutions Bulletins PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADM3491 IBIS Models IBIS Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADM3491 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM3491AR Status: Production 14 ld SOIC 14 Ind Tube, 56 $1.75 $1.59 N  Material Info PCN Purchase
ADM3491AR-REEL Status: Last Time Buy 14 ld SOIC 14 Ind Reel, 2500 - - N  Material Info PCN/PDN Contact ADI
ADM3491AR-REEL7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 - $1.59 N  Material Info PCN Purchase
ADM3491ARZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $1.52 $1.37 Y  Material Info PCN Purchase Sample
ADM3491ARZ-REEL Status: Production 14 ld SOIC 14 Ind Reel, 2500 - $1.37 Y  Material Info PCN Purchase
ADM3491ARZ-REEL7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 - $1.37 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Standard RS-485 Full-Duplex (14-lead SOIC) Evaluation Board, EVAL-RS485FDEBZ
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-RS485FDEBZ Status: Production Evaluation Board $30.00 Yes -
ADM1491EBRZ Status: Production 5V, Enhanced ESD, 16 Mbps, 32 nodes, -40C to +85C $2.44 Yes -
ADM3070EARZ Status: Production 3.3V, Enhanced ESD, 250 kbps, 256 nodes, -40C to +85C $1.96 Yes -
ADM3070EYRZ Status: Production 3.3V, Enhanced ESD, 250 kbps, 256 nodes, -40C to +125C $2.15 Yes -
ADM3073EARZ Status: Production 3.3V, Enhanced ESD, 500 kbps, 256 nodes, -40C to +85C $1.96 Yes -
ADM3073EYRZ Status: Last Time Buy 3.3V, Enhanced ESD, 500 kbps, 256 nodes, -40C to +125C $2.15 Yes -
ADM3076EARZ Status: Production 3.3V, Enhanced ESD, 16 Mbps, 256 nodes, -40C to +85C $1.96 Yes -
ADM3076EYRZ Status: Production 3.3V, Enhanced ESD, 16 Mbps, 256 nodes, -40C to +125C $2.15 Yes -
ADM3491AR Status: Production 3.3V, 10 Mbps, 32 nodes, -40C to +85C, Not ROHS Compliant $4.27 No -
ADM3491ARZ Status: Production 3.3V, 10 Mbps, 32 nodes, -40C to +85C $3.69 Yes -
ADM3491EARZ Status: Production 3.3V, Enhanced ESD, 12 Mbps, 32 nodes, -40C to +85C $1.71 Yes -
ADM489ABRZ Status: Production 5V, 250 kbps, 32 nodes, -40 to +85C $2.22 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

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