• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 48 subscribers
  • Views 160 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.

INA351A: INA114AU Parts are marked BB INA114AU 49ASELT and are having increased voltage outputs on a customer design that we have built for a long time

Glenn Brown
Prodigy 30 points
Part Number: INA351A
Other Parts Discussed in Thread: INA114

Tool/software:

Has anyone else reported any issues with these ASEL Assembly/Lot code Burr-Brown parts?

The voltage outputs using these parts are increased by ~100mV.

This is on a stable customer design that we have manufactured for years.

We are seeing this increased voltage at In-Circuit Test.

Our VERY experienced ICT Engineer has verified that there are no issues with the ICT machine and test fixture, so please no questions about how we are measuring, etc.

This is a part issue.

Is it correct to assume that the date code is 2024, September?

Or can that be 2014?  2004?

  • +1
    TI__Genius 14280 points

    Hi Glenn, 

    Welcome to E2E! I'm sorry to hear that you are having issues with your ICT testing with the INA114. The part marking of "49ASELT" corresponds to a date code of 2024, September. We have not received reports of abnormal behavior similar to what you have reported but please note that there was a PCN issued last year that may explain the difference in device behavior. A copy of this PCN can be found online here.

    Without more information on the application and use conditions, we are unfortunately unable to help troubleshoot further. If you have more information that can be shared, such as a schematic, we would be happy to review and assist. 

    Thank you!
    Regards,
    Ashley

  • +1
    Guru 310780 points

    Apparently, the new die indeed has a wider output swing, i.e., the typical values now go beyond what was shown for the old die.

    What happens beyond these limits is not guaranteed. So if your ICT tries to find out the actual output swing limits, then it will indeed get different values for old and new dies. As long as your actual circuit does not try to go beyond the datasheet limits, it will not affected.

    You should adjust the expected values in the ICT.

  • 0 in reply to Clemens Ladisch
    Prodigy 30 points

    Clemens, thank you so much for the detailed reply and rapid response!