CC CE CC
Voltage-sample Current-sum amp
Rf1 = 100kohm
Rf2 = 5kohm
B = Xf/Xo = If/Vo = -1/Rf1
Afr ~= 1/B = -Rf1 = -100kohm
Avo = Vo/Vg = Vo/(Ig(Rg + Ri))*Afr ~= -Rf1/Rf2 = -100kohm/5kohm = -20V/V
Vi = 10mV
Vo ~= Vi*Avo = 10mV*(-20V/V) = -200mV
***Adjust the 5kohm resistor at signal source to increase or decrease overall gain.***
