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ISOW7721: ISOW7721 related issues

jeno.zhang
Genius 3485 points

Part Number: ISOW7721
Other Parts Discussed in Thread: ISO1640

Tool/software:

Hi，

The customer wants to use ISOW7721 for one-way communication, and the connecting device is ADI's DS2431. The customer wants to know how to connect it. Thank you!

  • 0
    Guru 326180 points

    1-wire uses a bidirectional, open-drain signal. A digital isolator like the ISOW7721 would not work without additional circuitry.

    You should use an I²C isolator like the ISO1640, but there is none with an integrated power supply.