(2) 同相比例运算放大器iF if
ib+ =0
RF
u-= u+= uiib- =0
ui
Rf
_ + +Au=1+
uo
iF=ifuo ui R 2F ui R 1f
RPRP=Rf//RFRF
Rf
R2 F u o (1 )u i R 1f
(2) 同相比例运算放大器iF if
ib+ =0
RF
u-= u+= uiib- =0
ui
Rf
_ + +Au=1+
uo
iF=ifuo ui R 2F ui R 1f
RPRP=Rf//RFRF
Rf
R2 F u o (1 )u i R 1f