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  • TI Thinks Resolved

ADS7951: Input capacitance or input leakage current of these pins

Part Number: ADS7951

My customer is driving the ADS7951 through its SPI . He is looking through the datasheet and we cannot see the input capacitance or input leakage current of these pins. Would it be possible to supply this information. Thanks.

  • Hi Naser

    We do not have information available on digital pins leakage current and input capacitance for this device family.

    Generally for most of our ADCs with similar interface , leakage current on digital pins will be in range of few tens of nA and capacitance of <10pF.

    I hope this helps

    Thanks & Regards
    Abhijeet
  • In reply to Abhijeet Godbole:

    Hi Abhijeet:  See below from customer. What else can we do to help  him.

    I’m afraid this doesn’t help.

    I really need the maximum levels for both parameters to be able to characterize my design.

  • In reply to Naser S.:

    Hi Naser

    Let me check on this. It will take couple of days to get you this data.

    Thanks & Regards
    Abhijeet
  • In reply to Abhijeet Godbole:

    Hi Naser
    Please see below information

    Input leakage current should be about 10nA (Typical) perhaps 100 nA (Max).
    Input capacitance should be about 5pF (Max).

    Thanks & Regards
    Abhijeet

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