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ADS124S08: Input impedance of ADS124S08

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Intellectual 780 points
Part Number: ADS124S08

Hi eveyone,

     I bypssed the PGA, connect the AINCOM to +2.5V(take it as AINn), internal referrence, AINps span a range from 0~5V, i want to know  the input impedance of AINs, anyone can tell me where to find it?

Huang.

  • 0
    TI__Mastermind 23275 points
    Hi Huang,

    we decided to only specify absolute and differential input currents instead of input impedance for ADS124S08.
    From the differential input current specification you can see that the differential input impedance with the PGA bypassed is around 1GOhm.

    Regards,