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ADM4853:  5 V, ⅛ Load, Slew-Rate Limited, RS-485/RS-422 Transceiver (Half Duplex, 10 Mbps)

Product Details


The ADM4850-ADM4857 are differential line transceivers suitable for high speed full and half duplex data communication on multipoint bus transmission lines. They are designed for balanced data transmission and comply with EIA Standards RS-485 and RS-422. The ADM4850-ADM4853 are half duplex transceivers which share differential lines and have separate enable inputs for the driver and receiver. The full duplex ADM4854-ADM4857 transceivers have dedicated differential line driver outputs and receiver inputs.

The devices have a 1/8-unit-load receiver input impedance which allows up to 256 transceivers on a bus. Since only one driver should be enabled at any time, the output of a disabled or powered down driver is three-stated to avoid overloading the bus.

The receiver inputs have a true failsafe feature which ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases.

The driver outputs are slew rate limited in order to reduce EMI and data errors caused by reflections from improperly terminated buses. Excessive power dissipation caused by bus contention or by output shorting is prevented with a thermal shutdown circuit.

The parts are fully specified over the commercial and industrial temperature ranges and are available in 8-lead SOIC and LFCSP packages.

FEATURES and BENEFITS

  • EIA RS-485/RS-422 Compliant
  • Reduced Slew Rates for Low EMI
  • True Failsafe Receiver Inputs
  • 2µA (Max) Supply Current in Shutdown Mode
  • Up to 256 Transceivers on a bus
  • Outputs High-Z when Disabled or Powered-Off
  • -7V to +12V Bus Common Mode Range
  • Thermal Shutdown and Short Circuit Protection
  • Pin Compatible with MAX308x
  • Specified over –40°C to +85°C Temperature Range
  • Available in 8-Lead SOIC and LFCSP Packages

Functional Block Diagram for ADM4853

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
ADM4850-ADM4857: 5 V, Slew-Rate Limited, Half-Duplex and Full-Duplex RS-485/RS-422 Transceivers Data Sheet (Rev D, 01/2012) (pdf, 453 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
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

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

ADM4853 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM4853ACP-REEL7 Status: Obsolete 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - N  Material Info PDN Contact ADI
ADM4853ACPZ-REEL7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $0.71 Y  Material Info PCN Purchase Sample
ADM4853AR Status: Obsolete 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info PDN Contact ADI
ADM4853AR-REEL7 Status: Obsolete 8 ld SOIC 8 Ind Reel, 1000 - - N  Material Info PDN Contact ADI
ADM4853ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $0.81 $0.71 Y  Material Info Notify Me Purchase Sample
ADM4853ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $0.71 Y  Material Info Notify Me Purchase
ADM4853WARZ-RL7 Status: Production SOIC 150 MIL 8 Ind Reel, 1000 - - Y  Material Info Notify Me Purchase Sample
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 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-RS485HDEBZ Status: Production Standard Half-Duplex RS-485 Evaluation Board $30.00 Yes -
ADM1485ARZ Status: Production 5V, 30 Mbps, 32 nodes, -40C to +85C $3.10 Yes -
ADM1485JRZ Status: Production 5V, 30 Mbps, 32 nodes, 0C to +70C $2.33 Yes -
ADM1486AR Status: Production 5V, 30 Mbps, 50 nodes, Profibus-compliant, -40C to +85C, Not ROHS Compliant $3.03 No -
ADM1486ARZ Status: Production 5V, 30 Mbps, 50 nodes, Profibus-compliant, -40C to +85C $2.63 Yes -
ADM1487EARZ Status: Production 5V, Enhanced ESD, 2.5 Mbps, 128 nodes, -40C to +85C $1.59 Yes -
ADM3072EARZ Status: Production 3.3V, Enhanced ESD, 250 kbps, 256 nodes, -40C to +85C $1.84 Yes -
ADM3072EYRZ Status: Production 3.3V, Enhanced ESD, 250 kbps, 256 nodes, -40C to +125C $2.02 Yes -
ADM3075EARZ Status: Production 3.3V, Enhanced ESD, 500 kbps, 256 nodes, -40C to +85C $1.84 Yes -
ADM3075EWYRZ Status: Production 3.3V, Enhanced ESD, 500 kbps, 256 nodes, -40C to +125C, Automotive - Yes -
ADM3075EYRZ Status: Production 3.3V, Enhanced ESD, 500 kbps, 256 nodes, -40C to +125C $2.02 Yes -
ADM3078EARZ Status: Production 3.3V, Enhanced ESD, 16 Mbps, 256 nodes, -40C to +85C $1.87 Yes -
ADM3078EYRZ Status: Production 3.3V, Enhanced ESD, 16 Mbps, 256 nodes, -40C to +125C $2.05 Yes -
ADM3483ARZ Status: Production 3.3V, 250 kbps, 32 nodes, -40C to +85C $1.21 Yes -
ADM3483EARZ Status: Production 3.3V, Enhanced ESD, 250 kbps, 32 nodes, -40C to +85C $1.59 Yes -
ADM3485ARZ Status: Production 3.3V, 10 Mbps, 32 nodes, -40C to +85C $1.42 Yes -
ADM3485EAR Status: Production 3.3V, Enhanced ESD, 12 Mbps, 32 nodes, -40C to +85C, Not ROHS Compliant $3.51 No -
ADM3485EARZ Status: Production 3.3V, Enhanced ESD, 12 Mbps, 32 nodes, -40C to +85C $3.04 Yes -
ADM3486EARZ Status: Production 3.3V, Enhanced ESD, 2.5 Mbps, 32 nodes, -40C to +85C $1.59 Yes -
ADM3493ARZ Status: Production 3.3V, 250 kbps, 256 nodes, -40C to +85C $1.32 Yes -
ADM483ARZ Status: Production 5V, 250 kbps, 32 nodes, -40C to +85C $0.76 Yes -
ADM483EARZ Status: Production 5V, Enhanced ESD, 250 kbps, 32 nodes, -40C to +85C $1.68 Yes -
ADM4850ARZ Status: Production 5V, 115 kbps, 256 nodes, -40 to +85C $0.91 Yes -
ADM4851ARZ Status: Production 5V, 500 kbps, 256 nodes, -40 to +85C $0.91 Yes -
ADM4852ARZ Status: Production 5V, 2.5 Mbps, 256 nodes, -40 to +85C $0.91 Yes -
ADM4853ARZ Status: Production 5V, 10 Mbps, 256 nodes, -40 to +85C $0.91 Yes -
ADM4853WARZ-RL7 Status: Production 5V, 10 Mbps, 256 nodes, -40 to +85C, Automotive - Yes -
ADM485AR Status: Production 5V, 5 Mbps, 32 nodes, -40 to +85C, Not ROHS Compliant $2.85 No -
ADM485ARZ Status: Production 5V, 5 Mbps, 32 nodes, -40 to +85C $2.47 Yes -
ADM485EARZ Status: Production 5V, Enhanced ESD, 2.5 Mbps, 32 nodes, -40 to +85C $1.59 Yes -
ADM485JRZ Status: Production 5V, 5 Mbps, 32 nodes, 0 to +70C $1.86 Yes -
ADM487EARZ Status: Production 5V, Enhanced ESD, 2.5 Mbps, 32 nodes, -40 to +85C $1.59 Yes -
ADM487EWARZ Status: Production 5V, Enhanced ESD, 2.5 Mbps, 32 nodes, -40 to +85C, Automotive $3.18 Yes -
ezLINX™ iCoupler® Isolated Interface Development Environment
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EZLINX-IIIDE-EBZ Status: Production iCoupler® Isolated Interface Development Environment Evaluation Board $149.00 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.

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