hoolish
Newbie level 6
Hi,
I have a question about miller compensation.
I design a amplifier with first stage differential input,
differential output, second stage differential input, single
output. I put a miller cap between second stage output
and one first stage output.
From the AC simulation, I find a strange zero in the loop
whose frequency is less than unit gain frequency.
I can not explain the reason because it is not the left
hand zero caused by miller compensation.
Anybody can help me to explain the wired zero?
Thanks!
I have a question about miller compensation.
I design a amplifier with first stage differential input,
differential output, second stage differential input, single
output. I put a miller cap between second stage output
and one first stage output.
From the AC simulation, I find a strange zero in the loop
whose frequency is less than unit gain frequency.
I can not explain the reason because it is not the left
hand zero caused by miller compensation.
Anybody can help me to explain the wired zero?
Thanks!