on what factors w3db depends

[srchan]

hi , im designing a differential amplifier [ 2stage] n i got only 10db gain,n i need to get 60db gain.. can sumone explain me on what factors w3db depends.. ?? how to increase my w3db
Thanks
sreel

 

[engrMunna]

You first have to find the node which has the lowest pole....that will be the main contributing factor towards the w3db....most probably the output of the first stage......what you can do is use a cascode amplifier for your first stage and if you have a large capacitive load you need to decouple it from your main amplifier.

 

[engrMunna]

if you post a picture of your circuit may be it may become more clear