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Discussion in 'Electronic Design' started by srinu, Dec 9, 2004.

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  1. srinu

    srinu Guest

    Dear sir,
    Actually i want to develop an ANALOG IO CONTROLLER in the devicenet
    netork.I am using 4 analog input and 4 analog out put channels with
    120v ac as input , i am stepping down this voltage to 3.3v that can
    be given as an input for my A/D converter inside my controller.Does
    the analog voltage 120vac needs to step down to the required operating
    voltage of the analog pins inside my controller or else do i need to
    calculate the exact voltage between 0 to 120vac in this ANALOG IO
    CONTROLLER modules that can be fed as input to the controller analog
    pins. Can you please explain me how an analog i/o controller works
    with respect to 0 to 120 vac input voltage in the device network.

    With Regards,
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