balameera
Newbie level 4
Hello,
I am designing the two stage folded cascode opamp. For the single stage of folded cascode i got sufficient phase margin of 64 degree. But when i added the second stage, the phase margin increases to 150 degree. is it correct to have higher phase margin? In order to reduce the phase margin for the required level what should i do? Since i am the beginner of designer of opamp design i don't know how to reduce this.kindly help me.btw the opamp is miller compensated also.
Thanks in advance
I am designing the two stage folded cascode opamp. For the single stage of folded cascode i got sufficient phase margin of 64 degree. But when i added the second stage, the phase margin increases to 150 degree. is it correct to have higher phase margin? In order to reduce the phase margin for the required level what should i do? Since i am the beginner of designer of opamp design i don't know how to reduce this.kindly help me.btw the opamp is miller compensated also.
Thanks in advance