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Full-Duplex, ±35kV ESD-Protected, RS-485 Transceivers for High-Speed Communication

Reduce Field Failures with Highest ESD Dual Voltage Full Duplex RS-485 Transceivers

Product Details

The MAX14784E/MAX14786E/MAX14787E/MAX14789E full-duplex RS-485 transceivers are designed for robust communication in harsh industrial environments. All devices feature ±35kV ESD protection on the RS-485 pins and operate from a 3V to 5.5V supply with a 4mA no-load supply current (max).

The MAX14784E/MAX14787E are optimized for communication over very long cables or short unterminated cables.

The MAX14784E/MAX14786E are available in a 14-pin SO package and and operate over the -40°C to +125°C temperature range. The MAX14786E is also available in a 14-pin TSSOP package.

The MAX14787E/MAX14789E are optimized for space-constrained applications and are available in an 8-pin SO package and operate over the -40°C to +105°C temperature range. 

Key Features

  • Flexibility
    • Use in Full-Duplex or Half-Duplex Applications
    • Wide 3.0V to 5.5V Supply Voltage Range
    • Available with 500kbps and 25Mbps Speed Options
    • Available in 8-Pin and 14-Pin SO and TSSOP Packages
  • Optimized for Performance in Harsh Industrial Environments
    • ±35kV ESD (HBM) Protection on RS-485 I/O Ports
    • Extended Operating Temperature Range
    • Slew-Rate Limited Outputs (MAX14784E/MAX14787E)
    • Integrated Receiver Deglitch Filter Increases Noise Immunity (MAX14784E/MAX14787E/)
    • Short-Circuit Protected Outputs
    • True Fail-Safe Receiver
    • Thermal Shutdown
  • ¼-Unit Load Allows up to 128 Transceivers on the Bus

    Applications/Uses

    • Encoder Interfaces
    • HVAC Control Systems
    • Motion Controllers
    • Utility Meters
    Parametric specs for RS-485/RS-422 Line Driver/Receivers
    # Tx/Rx 1Tx + 1Rx
    Duplex Full
    VSUPPLY (V) 3.0 to 5.5
    Data Rate (kbps) (min) 500
    ICC (mA) (typ) 1.9
    ESD Protect. (±kV) 35
    Tx EN Yes
    Rx EN Yes
    ICC (Shutdn.) (µA) (typ) 5
    Oper. Temp. (°C) -40 to +125
    Package/Pins SOIC (N)/14
    Budgetary
    Price (See Notes)
    $2.80 @1k
    View More

    Simplified Block Diagram

    MAX14784E, MAX14786E, MAX14787E, MAX14789E: Functional Diagram MAX14784E, MAX14786E, MAX14787E, MAX14789E: Functional Diagram Zoom icon

    Technical Docs

    Design & Development

    Click any title below to view the detail page where available.

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    SIMULATION MODELS

    MAX14784E IBIS Model

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    Support & Training

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    Filtered Search

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    Parameters

    Parametric specs for RS-485/RS-422 Line Driver/Receivers
    # Tx/Rx 1Tx + 1Rx
    Duplex Full
    VSUPPLY (V) 3.0 to 5.5
    Data Rate (kbps) (min) 500
    ICC (mA) (typ) 1.9
    ESD Protect. (±kV) 35
    Tx EN Yes
    Rx EN Yes
    ICC (Shutdn.) (µA) (typ) 5
    Oper. Temp. (°C) -40 to +125
    Package/Pins SOIC (N)/14
    Budgetary
    Price (See Notes)
    $2.80 @1k

    Key Features

    • Flexibility
      • Use in Full-Duplex or Half-Duplex Applications
      • Wide 3.0V to 5.5V Supply Voltage Range
      • Available with 500kbps and 25Mbps Speed Options
      • Available in 8-Pin and 14-Pin SO and TSSOP Packages
    • Optimized for Performance in Harsh Industrial Environments
      • ±35kV ESD (HBM) Protection on RS-485 I/O Ports
      • Extended Operating Temperature Range
      • Slew-Rate Limited Outputs (MAX14784E/MAX14787E)
      • Integrated Receiver Deglitch Filter Increases Noise Immunity (MAX14784E/MAX14787E/)
      • Short-Circuit Protected Outputs
      • True Fail-Safe Receiver
      • Thermal Shutdown
    • ¼-Unit Load Allows up to 128 Transceivers on the Bus

      Applications/Uses

      • Encoder Interfaces
      • HVAC Control Systems
      • Motion Controllers
      • Utility Meters

      Description

      The MAX14784E/MAX14786E/MAX14787E/MAX14789E full-duplex RS-485 transceivers are designed for robust communication in harsh industrial environments. All devices feature ±35kV ESD protection on the RS-485 pins and operate from a 3V to 5.5V supply with a 4mA no-load supply current (max).

      The MAX14784E/MAX14787E are optimized for communication over very long cables or short unterminated cables.

      The MAX14784E/MAX14786E are available in a 14-pin SO package and and operate over the -40°C to +125°C temperature range. The MAX14786E is also available in a 14-pin TSSOP package.

      The MAX14787E/MAX14789E are optimized for space-constrained applications and are available in an 8-pin SO package and operate over the -40°C to +105°C temperature range. 

      Simplified Block Diagram

      MAX14784E, MAX14786E, MAX14787E, MAX14789E: Functional Diagram MAX14784E, MAX14786E, MAX14787E, MAX14789E: Functional Diagram Zoom icon

      Technical Docs

      Support & Training

      Search our knowledge base for answers to your technical questions.

      Filtered Search

      Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal