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The circuit for bidirectional signal (ADA4927 output impedance @ power down)

Question asked by moto on Mar 7, 2014



I would like to send interactive signal on the one differential signal line.

The direction of signal would control by switch.

This signal is up to 20MHz.

(The signal amplitude is about 1Vpp temporarily )


For example, if we design this circuit using ADA4927-2, can it work suitably?

I would like to know detail device feature of ADA4927-2.


  How about the output impedance at the power-down mode?

  How about output capacitance at power-down ?

  Can it connect inputs to outputs.

   Please comment us about we need to take care.


Please advice more suitable device for this application, if you know.