• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 47 subscribers
  • Views 377 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OPA4172-Q1: Input bias current worst case analysis

Sheldon He
Expert 8585 points
Part Number: OPA4172-Q1
Other Parts Discussed in Thread: OPA4172

Hi expert,

In OPA4172's datasheet, I get below information:

May I know how to do worst case analysis based on above information? Should I use full temperature range data?

BTW, what information will TA = 25 degrees C data tell us? How does this data being used by R&D?

Thanks

Sheldon

  • 0
    TI__Genius 15410 points

    Hi Sheldon,

    To do a worst case analysis due to input bias current you should use the specification you have highlighted above if your system is to operate from -40C to 125C.

    The TA=25C gives the typical (typ) and worst case (max) performance you can expect due to input bias current at room temperature only.

    I recommend watching our TI Precision Lab Videos on Offset Voltage and Input Bias Current for how to calculate the effects due to input bias current.

    Thank you,

    Tim Claycomb