i want to simulate the AC performance ( DC gain ,phase margin or gain margin) of the bandgap circuit. Who can tell me how to add the AC voltage source in the BG circuit? The circuit is as in the picture.
thanks in advance
Re: how to simulate the AC performance of the bandgap circui
break loops at the input terminal + and - of OP, and insert 10G resistor series with 10F capacitors to GND before + and -, and AC noise at either one node, then check the node at the return path.
this is a reference https://www.spectrum-soft.com/news/winter2001/loopgain.shtm