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ADS7865: Interfacing AMC1311 to ADS7865

Christopher Arntzen
Intellectual 630 points
Part Number: ADS7865
Other Parts Discussed in Thread: AMC1311,

Tool/software:

I am going to interface the differential output of an AMC1311 to the differential input of an ADS7865.

The AMC1311 has a common mode offset of 1.44V. Will this create an offset in the digital reading from the ADS7865?

  • +1
    TI__Expert 4010 points

    Hello Christopher, 

    Thank you for your question. In differential mode the offset seen with a different common mode level should be minimal if any. I will like to not though that having a 1.44V common mode instead of 2.5V could decrease your Full Scale range, but as long as the input remains within the -0.1V to AVDD+0.1V it should function as expected. 

    Best regards, 

    Yolanda