hi, all!
   i am designing a folded cascode OTA used in a LDO, to achive a acceptable offset caused by the transistor's mismatch, how miminum length of the input and load transistors should I used, my design is based on the Charter 0.35um CMOS process.  please give me any suggestions from your tapeout experience, thanks a lot!

best regards,
Robert

Hello Robert,

I think this depends on the offset you can tolerate.
For applications where offset isn't the major concern, but
speed is important I usually use minimum length transistors
to take full advantage of the technology.

If offset is important but speed moderate I agree with Krishna
not to use minimum design length.

Cheers,

Thomas