xanhphysics
Junior Member level 1
hi , I got problem want ask all of you
I 'm design a limiting amplifier that need 4 stages which is cascaded ,each stage is
a differential pair .
When i design each each stage to satisfy its gain and bandwidth i must choose common mode input
also .But when all of stages are cascade ,the output common mode voltage of a stage will be
input common mode of one of other stages .It make all stages are not independent .
Cos I 'm a newbie then i dont know how to solve this problem
Could anyone can help me to solve the problem ?
I 'm design a limiting amplifier that need 4 stages which is cascaded ,each stage is
a differential pair .
When i design each each stage to satisfy its gain and bandwidth i must choose common mode input
also .But when all of stages are cascade ,the output common mode voltage of a stage will be
input common mode of one of other stages .It make all stages are not independent .
Cos I 'm a newbie then i dont know how to solve this problem
Could anyone can help me to solve the problem ?