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Input for ADC of MC68HC12

Discussion in 'Assembly Language Programming (ALP) Forum' started by laguna92651, Sep 14, 2011.

  1. laguna92651

    laguna92651 New Member

    Oct 22, 2009
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    Is the input to the Analog to Digital converter channel of the MC68HC12 analog ac or analog dc?

    I have a 80.205Vpp sine wave signal that I would like to condition so it
    converts to 0-5v input for the ADT of the MC68HC12. I'm still not clear if the input to the MC68HC12 should be 5Vdc or can be a divided down 5v sine wave, ac. The signal is low frequency, less than 100Hz. It is the output of a Tachometer.

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