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AD7701 self-calibration

Are there any known issues with the AD7701 self-calibration (SC1 & SC2 low) going to the AIN instead of the AGND?

Parents
  • In our current design there are provisions with an analog switch tied to AGND external to the ADC until after the self-calibration is complete.  This implies to me that there was an issue at one time that created an issue with the calibration using the AIN instead of AGND internally.

    What are the results if the CAL is attributed and there is no clock present?

    Matt

Reply
  • In our current design there are provisions with an analog switch tied to AGND external to the ADC until after the self-calibration is complete.  This implies to me that there was an issue at one time that created an issue with the calibration using the AIN instead of AGND internally.

    What are the results if the CAL is attributed and there is no clock present?

    Matt

Children
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