Fabien
Full Member level 1
Hi everyone,
I redesign a fully differential OpAmp for switched capacitor integrator. (My last post: Fully differential OTA design for low power SC integrator).
The inputs are PMOS, in order to have a larger unity-gain frequency (K. Martin's book). The thing is that I can't have a common mode at Vdd/2. I don't know how to design in order to get the output at Vdd/2, it's always 0.5V whatever the current, W, L of the transistors...
Any suggestions??
Thank you
I redesign a fully differential OpAmp for switched capacitor integrator. (My last post: Fully differential OTA design for low power SC integrator).
The inputs are PMOS, in order to have a larger unity-gain frequency (K. Martin's book). The thing is that I can't have a common mode at Vdd/2. I don't know how to design in order to get the output at Vdd/2, it's always 0.5V whatever the current, W, L of the transistors...
Any suggestions??
Thank you