CA-IS2092W

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Isolated RS485/422 Transceivers with DC-DC Converter

The CA-IS2092x family of devices is galvanically-isolated RS-485/RS-422 transceivers with built-in isolated DC-DC converter, that eliminates the need for a separate isolated power supply in space constrained isolated designs. All devices of this family have the logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier that provides up to 3.75kVRMS (60s) of galvanic isolation and ±150kV/μs typical CMTI. Isolation improves data communication by breaking ground loops and reduces noise where there are large differences in ground potential between ports. An integrated DC-DC converter generates the 3.3V or 5V operating voltage for the cable-side.

The CA-IS2092x family of devices is designed for multi-drop operation with high ESD protection of up to ±20kV HBM on the bus pins. The receiver is 1/8-unit load, allowing up to 256 transceivers (loads) on a common bus. These devices provide half-duplex transceivers, the driver and receiver enable pins let any node at any given moment be configured in either transmit or receive mode which decreases cable requirements. The individual logic supply input of CA-IS2092VW allows fully compatible 2.5V to 5.5V logic on logic input/output lines.

The CA-IS2092x series devices are available in wide-body 16-pin SOIC package which are the industry standard isolated RS-485/RS-422 package, and operate over -40°C to +125°C temperature range.

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  • Features

    High-Performance and Compliant with RS-485 EIA/TIA-485 Standard

    0.5Mbps data rate
    1/8 unit load enables up to 256 nodes on the bus
    3V to 5.5V supply voltage range, and the CA IS2092VW provides individual logic supply input

    Integrated DC-DC Converter for Cable-side Power

    3.3V and 5V output options (VISO ≤ VCC)
    High integration with internal transformer
    Soft-start reduces input inrush current
    Overload and short-circuit protection
    Thermal shutdown

    Integrated Protection for Robust Communication

    3.75kVRMS withstand isolation voltage for 60s (galvanic isolation)
    ±150kV/μs typical CMTI
    High lifetime: >40 years
    ±20kV Human Body Model(HBM) ESD protection on bus I/O, ±6kV HBM ESD protection on logic I/O
    True fail-safe guarantees known receiver output state

    Wide operating temperature range

    –40°C to 125°C

    Wide-body SOIC16-WB(W) Package

  • Applications

    • Industrial Automation Equipment

    • Grid infrastructure

    • Solar inverter

    • Motor drivers

    • HVAC

  • Device Information

    PART NUMBERPACKAGEBODY SIZE (NOM)

    CA-IS2092W

    CA-IS2092VW

    SOIC16-WB(W)10.30mm×7.50mm
  • Simplified Functional Diagram

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