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REF02: TEMP pin

Hello,

I have a question about the TEMP pin of REF02.

The explanation of the TEMP pin has the description in page15 of the REF02 data sheet.

There is a description that recommends the OpAmp of a low bias like AD8641 to be used for here.

Is this bias current allowed up to how many pA?

Best Regards,

Mr.K

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  • Hello,

    Thank you for your reply.

    In data sheet of the REF02(Rev.I  page3), the current of the TEPM pin is limited to 50nA.

    However, it has changed into the description that uses the OpAmp with low bias current in the data sheet Rev.K

    The bias cuurent of the AD8641 is 260pA(max).

    Should I use the OpAmp which the bias current is lower than that of 260pA?
    Could you tell me the value of the allowed bias current?

    Best Regards,

    Mr.K

Reply
  • Hello,

    Thank you for your reply.

    In data sheet of the REF02(Rev.I  page3), the current of the TEPM pin is limited to 50nA.

    However, it has changed into the description that uses the OpAmp with low bias current in the data sheet Rev.K

    The bias cuurent of the AD8641 is 260pA(max).

    Should I use the OpAmp which the bias current is lower than that of 260pA?
    Could you tell me the value of the allowed bias current?

    Best Regards,

    Mr.K

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