I need to design a opamp of integrator, Could someone give me some suggestions how to evaluate the stability problem? such as how to do simulation of stability of a integrator.
I have design a simple integrator, the amp is just the 7 transistors amp. And add a capacitor Ci connectting Vin- and Vout. In Miller theory, the capacitor can be seperated into two values capacitor. Connecting the output cap value is nearly equals Ci. So I use this cap as load to simulate the stability. I am not sure this is right.