#### lhlbluesky

##### Banned

for ex:

resolution:10bit clock:50M swing:2V Vdd:3.3 DR:70dB PM>60deg CL=1PF

then how to design this opamp, what is the value of Cc?

if PM>60, then p2 > 2GBW, but what is the expression of GBW and p2?

i use GBW = gm2 / Cc, p2=gm13 / CL, but it doesn't comply with the simulation results, why?

there are three poles, A\B\C, which is the first pole, which is the second and third pole, why? how to anylysis in detail?

anyone can tell me how to get the expression of p2 and GBW exactly?

besides, if i use another Cc (Cc2) between node D and C, then what is the expression of GBW and p2? and what is the difference of the two case(one CC and two Cc), and which is better for stablity?

pls help me, any advice or help or papers will be appreciated, thanks all.