small signal analysis?

[MahendraLetchmanan]

Im relatively new to circuit design. I would like to know how do I obtain a small signal circuit from the posted image. Thank you.

 

[gelo]

If you want the long method, draw the small signal equivalent of all the transistors.
If you want in particular to obtain the small signall gain of the whole schematic, then i can say that it is just gmRL, wherein RL is the equivalent impednace made by T1 and ro of T2

 

[wonbef]

you understand the small signal model of transistor, and so you can draw the small signal equivalent circuit easily.

good luck

 

[ashad]

hi,
see the following book

 

[michaelhan]

i do have the same probelm for the analysis for different kinds compensation for op