Question

1) Assuming ideal op-amp characteristics, determine the gains (Vout/Vin) of the following amplifier circuits and the indicated currents. You should assume that voltage saturation is not a factor. U2 Vin=2= 11 15 2 Oy v Vout out 12 | 1k 14 Vin=2v — 111K OU Vout | thi I4 W 1 10k 110 U5115 OPAMP IZR1114 R13 Vout 3k R15 1116 ISVR12 3k 114 R16 113 R14 11k c) Vin = 4V

Answer 1

a) amp. in verting op Non Vin ting of amp. b) in ver -5 Ry Rg Vo 3k VPi Ub Vin vei IK vp, =Vm Vin vin IK +3K Vni il

3 Vn, t Vn - Va =0 Vin Va =4Vni Va =Vb =Vin Vin une ニ Unz Unz Зк IK