Hi Expert,
My customer is using OPA2314-Q1 in their OBC product and to sense the output current. You can find their schematic as below.
Customer set the reference voltage on Vout is 1.65V when input differential voltage=0V. Customer found that there will have some offset from board to board on reference voltage of Vout. Some board measured TP35(test point)=1.65V, some board measured TP35(test point)=1.63V. The offset from board to board is about 20mV.
May you kindly suggest how to decrease the offset?
Thanks!
Ethan Wen