Team,
My customer has a question I hope you can help with:
We are currently using a TLV8801DBVT as the input stage of a pH amplifier. We are seeing that as the temperature of the component increases (to 140F) our reading drops by ~250mV. We are well within the operating range of the component and we have calculated the effect of the input bias current on the readings and don’t feel that’s the issue but we cannot seem to place what could be causing what we are seeing.
We would appreciate your guidance.
Thanks
Viktorija