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Problem 7.4 (20 points) Consider an ideal op-amp network shown in Figure P7.4. (a) Find the voltage ratio V2/V1. (b) Find the voltage ratio V0/V2. (c) Determine the overall voltage gain GV = V0/V1. Figure P7.4 RA = 20 kΩ, RB = 80 kΩ, R1 = 1 kΩ, R2 = 24 kΩ

Problem 7.4 (20 points) Consider an ideal op-amp network shown in Figure P7.4. (a) Find the voltage ratio V2/V1. (b) Find the voltage ratio V0/V2. (c) Determine the overall voltage gain GV = V0/V1. Figure P7.4 RA = 20 kΩ, RB = 80 kΩ, R1 = 1 kΩ, R2 = 24 kΩ

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Problem 7.4 (20 points) Consider an ideal op-amp network shown in Figure P7.4. (a) Find the voltage ratio V 2 / V 1 . (b) Find the voltage ratio V 0 / V 2 . (c) Determine the overall voltage gain G V = V 0 / V 1 . Figure P7.4
R A = 20 k Ω , R B = 80 k Ω , R 1 = 1 k Ω , R 2 = 24 k Ω

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Problem 7.3 (20 points) Consider an ideal op-amp network depicted in Figure P7.3. (a) What are the terminal voltages (v−, v+) and currents (i−, i+) of the inverting and noninverting terminals, respectively. (b) Express the output voltage V0 in terms of the resistors and the input voltages Vs1, Vs2. Does it depend on the load resistor RF? Then evaluate V0. Figure P7.3 Vs1 = 6 V, Vs2 = 2 V, Rs = 1 kΩ, RF = 4 kΩ, RL = 2 kΩ

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