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Does common-mode voltage depend on the AC amplitude of the input at the gate?

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ozzy_osbourne

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hi,

i have a very simple question. does the output common-mode voltage of a simple differential amplifier depend on the input AC amplitude at the gate? why or why not?
thanks
 

Re: common-mode voltage

can anyone give an answer?
 

Re: common-mode voltage

common mode output range is range which your differential amplifier is still working in forward acive region.
 

common-mode voltage

common mode output voltage does not depond on the input common mode voltage.
 

Re: common-mode voltage

hi,

i have a very simple question. does the output common-mode voltage of a simple differential amplifier depend on the input AC amplitude at the gate? why or why not?
thanks
Click to expand...

Voc = Ac Vc, so it depends on the amplitude of Vc and the common mode gain
 

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