Overview

Features and Benefits

  • Isolated RS-485/RS-422 transceiver, configurable as half or full duplex
  • isoPower™ integrated isolated DC/DC converter
  • ±15 kV ESD protection on RS485 input/output pins
  • Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)
  • ADM2587E data rate: 500 kbps
  • 5 V or 3.3V operation
  • Connect up to 256 nodes on one bus
  • Open- and short-circuit, fail-safe receiver inputs
  • High common-mode transient immunity: >25 kV/μs
  • Thermal shutdown protection
  • See data sheet for additional features

Product Details

The ADM2582E/ADM2587E are fully integrated signal and power isolated data transceivers with ±15 kV ESD protection and are suitable for high speed communication on multipoint transmission lines. The ADM2582E/ADM2587E include an integrated isolated dc-to-dc power supply, which eliminates the need for an external dc-to-dc isolation block.

They are designed for balanced transmission lines and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E).

The devices integrate Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a three-state differential line driver, a differential input receiver, and Analog Devices isoPower dc-to-dc converter into a single package. The devices are powered by a single 5 V or 3.3 V supply, realizing a fully integrated signal and power isolated RS-485 solution.

The ADM2582E/ADM2587E driver has an active high enable. An active low receiver enable is also provided that causes the receiver output to enter a high impedance state when disabled.

The devices have current limiting and thermal shutdown features to protect against output short circuits and situations where bus contention may cause excessive power dissipation. The parts are fully specified over the industrial temperature range and are available in a highly integrated, 20-lead, wide-body SOIC package.

The ADM2582E/ADM2587E contain isoPower technology that uses high frequency switching elements to transfer power through the transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to Application Note AN-0971, Control of Radiated Emissions with isoPower Devices, for details on board layout considerations.

Applications
  • Isolated RS-485/RS-422 interfaces
  • Industrial field networks
  • Multipoint data transmission systems
  • Product Lifecycle icon-recommended Production

    At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

    Evaluation Kits (2)

    Documentation

    Frequently Asked Questions (1)

    Tools & Simulations

    IBIS Models

    Reference Designs (1)

    Design Resources

    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.

    PCN-PDN Information

    Discussions

    ADM2587E Discussions

    RE: ADM2587 DE/RE internal circuit
    2 week(s) ago in Interface and Isolation
    ADM2587 DE/RE internal circuit
    2 week(s) ago in Interface and Isolation
    RE: ADM2587E supply current to external load
    13 week(s) ago in Interface and Isolation
    ADM2587E Didn't find what you were looking for? Ask the Analog community »

    Sample & Buy

    Sample & Buy functionality exists in desktop site
    Back
    Check Inventory


    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.


    Price Table Help

     

    Evaluation Boards Pricing displayed is based on 1-piece.
    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.