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ADS7138: Acquisition time

Lidong Yu
Intellectual 1756 points
Part Number: ADS7138


I wanted to know if ADS7138 increases acquisition time when lowering the sample rate. I can not find information about his in the datasheet. I can only find die minimum acquisition time. The reason why I am asking is to determine the requirements for the driving circuit so that the input is settled within the acquisition time.

  • 0
    TI__Expert 3805 points

    Hi Lidong,

    With a lower sampling rate, the ADS7138 enables longer acquisition time. This is because the conversion time of ADS7138 is fixed and it is specified as tCONV in the switching characteristics table.

    Regards,

    Rahul