increase the length of load transistors to increase their output resistances .
Av=gm1((ro1.gm3.ro3)||(gm5.ro5.ro7))
Do not incerase the length of M1-M4 much as it will increase the capacitance.
Try this:
M1,M2=240,400n
M3,M4=600,400n
M5M6M7M8=960,800n
M9=240,400n
M10=3.6u,400n
Iref=20u
---------- Post added at 02:05 ---------- Previous post was at 02:04 ----------
increase the length of load transistors to increase their output resistances .
Av=gm1((ro1.gm3.ro3)||(gm5.ro5.ro7))
Do not incerase the length of M1-M4 much as it will increase the capacitance.
Try this:
M1,M2=240,400n
M3,M4=600,400n
M5M6M7M8=960,800n
M9=240,400n
M10=3.6u,400n
Iref=20u