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AD8418a Back to back connection

Hello,

Is it possible to connect two AD8418a in reverse back to back configuration? I've tried with simulation and It was OK.

It would be very nice if you can answer me.

Thank you.



Hello, Is it possible to connect two AD8418a in reverse back to back configuration? I've tried with simulation and It was OK. It would be very nice if you can answer me. Thank you.
[edited by: mehdiaghayi at 11:27 AM (GMT -4) on 25 Mar 2022]
  • Hi mehdiaghayi,

    Good day!
    I don't see any obvious error/issue connecting two AD8418a in a back to back configuration.
    But I'm curious about the application, are you using the AD8418s to power up other devices? I just noticed that the net names are VS+ and VS-.

    Thanks and Best Regards,
    Dann

  • Hello Dann,

    thank you so much for your answer.

    They would not provide any power supply for the other part of the circuit.

    Vs+ and Vs- would provide the necessary mirrored signals as an input to the chopper circuit.

    Actually they act as a feedback to the PI controller designed for a current source circuit.

    You know, when we have these two mirrored signal configuration we can easily reduce the temperature offset drift and also low frequency noise.

    If you have any question don't hesitate to ask me.

    With the best regards,