• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 382 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

OPT3101: Illumination crosstalk temperature coefficient - Q change is not linear with Temperature

Roberto Cerati
Prodigy 20 points
Part Number: OPT3101

I'm testing OPT3101 mounted on my hardware: I performed step 2 of SDK  Calibration and I found that I changes linearly but Q not.

The circuit uses a LTE-C9506B as IR LED and a TEM1000 as photodiode.

Best Regards

Roberto Cerati

  • 0
    TI__Expert 6800 points

    Hi Roberto,

    The compensation for I and Q over temperature is linear fit, so the non-linearity on Q will result in some error after compensation. Depending on the use case, you may be able to compensate by selecting a smaller temperature range that better fits the expected temperature range in the application, and this smaller range could have a more linear Q vs. temperature curve.

    Thank you,

    Brent Elliott