Have a reply:"The first stage, U5A, is at the biggest risk. Both the input and reference voltage exceed the limit and has the possibility of an incorrect output."
However, IN my actual test, the voltage of U5A IN+ to GND IN the first stage is about 3.9v, and the voltage of IN- to GND is about 1~ 4.5v. My test results are all normal
So, is it ok to assume that I designed this circuit?
Or my input and reference voltage are over 3V, there are hidden dangers, how to improve?I've made thousands of them