Junus2012
Advanced Member level 5
Dear friends,
For the wide swing cascoded mirror shown in figure below, I am using the circuit for biasing the NMOS differential pair transistor of the opamp,
In the low input common mode voltage, the upper cascoded transistors (M3 and M4)enters the triode region because there will be no headroom voltage. However, the down transistor still are in saturation region and mirroring the required current
My question is what is the consequence when these transisors (M3, M4) goes to the triode ? can I assume at this level the mirror becomes like simple mirror and live with it ?
Thank you
Regards
For the wide swing cascoded mirror shown in figure below, I am using the circuit for biasing the NMOS differential pair transistor of the opamp,
In the low input common mode voltage, the upper cascoded transistors (M3 and M4)enters the triode region because there will be no headroom voltage. However, the down transistor still are in saturation region and mirroring the required current
My question is what is the consequence when these transisors (M3, M4) goes to the triode ? can I assume at this level the mirror becomes like simple mirror and live with it ?
Thank you
Regards