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overdrive(Vsat) voltage in opamp

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pianomania

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what is the optimize Vgs-Vth (overdrive voltage Vsat) in OPamp design
some said 300mv ! is it right and suitable for all application ?

for example ,if input stage , current mirror , and output stage use the same criterion?
 

pianomania said:
what is the optimize Vgs-Vth (overdrive voltage Vsat) in OPamp design
some said 300mv ! is it right and suitable for all application ?
Click to expand...
Never!
pianomania said:
for example ,if input stage , current mirror , and output stage use the same criterion?
Click to expand...
They shouldn't.
 

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