how design cascode transistors of fully telescopic OPAMP?

[chichi]

i want to design a low noise fully telescoic opamp, the low noise is very important, so i must design it from noise equation, i know how to design the input transistors and load transistor, only that i have no idea to design the two pairs cascode transistors in order to minimize the whole input refered noise..plz help me..

 

[erikl]

Re: how design cascode transistors of fully telescopic OPAMP

... i have no idea to design the two pairs cascode transistors in order to minimize the whole input refered noise.

Below pls. find a few papers which may be helpful!

 

[chichi]

Re: how design cascode transistors of fully telescopic OPAMP

thanks a lot, that´s really helpful