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ISO7820LL: Question about unused input pin

Guru 19615 points
Part Number: ISO7820LL

Is unused input pin should connect to GND?

Or, it this left floating no problem?

Best regards,

Satoshi

  • Satoshi,

    System noise will cause the channel to keep toggling between 1 and 0. While this is not a problem, it is better to tie INX+ to VCC and INX- to GND, to keep the corresponding output at a differential High. The function table in the datasheet covers output states in comparison to various input/EN states.

    Respectfully,

    Lucas

  • Satoshi,

    I wanted to make sure you saw my updated response. Can you confirm?

    Respectfully,
    Lucas