shockingshockley
Member level 1
Hello
I am implementing my designed two-stage op amp (with a compensating capacitor Cc) as a comparator in my analog circuit.![](https://obrazki.elektroda.pl/7407444200_1425396108_thumb.jpg)
I run process corners TT, FF, and FS, and my output of the analog circuit is good and okay but not in SF and SS. When I remove the compensating capacitor, the output is now good in SF and SS while not in TT, FF, and FS.
Is there an explanation? Or do I need to redesign. Because the fault in the circuit is in that op amp. Thank you.
I am implementing my designed two-stage op amp (with a compensating capacitor Cc) as a comparator in my analog circuit.
![](https://obrazki.elektroda.pl/7407444200_1425396108_thumb.jpg)
I run process corners TT, FF, and FS, and my output of the analog circuit is good and okay but not in SF and SS. When I remove the compensating capacitor, the output is now good in SF and SS while not in TT, FF, and FS.
Is there an explanation? Or do I need to redesign. Because the fault in the circuit is in that op amp. Thank you.