Question

Determine the output voltage Vo of the circuit shown below. Given Vs = 6V Rs1 = 622 RF1 = 51 Rs2 = 31 RF2 = 912 REI Rsi RF2 ww RS2 + Vo VS 오

Answer 1

RE RE1=52 M V2 RF2=94 Rs1 l Rs2 Vs 5 M 61 M + Vol Зл- V. 6V For op- amp O, Acconding to virtual ground theory, vo = V Vi VS 6V But 6V V2 Now by applying KCL at node V2-0 Voi - V - REN Vol-6 6-0 30 6 Vol-36 vol for op-ame 6 Vi Acconding to virtual ground theory, But V4 = { :: Grounded} V5 by applying KCL at node 6 V5 Vol Vo-V5 Rf2 Rs2

0-11 Voro > = 3 9 99 3 Vo -33V Shost cut! OP- amp Non Investing Amplifier, Von = (t Regen) Vsi (+)6-= IV Vol = Rf2 Vol R$2 OP-ame is Investing amplifier, Vo .33V - - (1) Vo