9780199339136, Chapter 1, Problem 15E

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Chapter 1, Problem 15E Step-by-step solution Step 1 of 5 Draw the two stage amplifier circuit. Source Stage 1 Stage 2 Load 100 kΩ + + + Vn MΩ 100 kΩ VL 100 Ω + + + Figure 1 Step 2 of 5 The source signal appearing at the input terminal of the amplifier is, = 0.909 V/V Step 3 of 5 The Voltage gain of first stage is obtained by considering the input resistance of the second stage to be the load of first stage. =9.9 V/V Step 4 of 5 Calculate the voltage gain of second stage. Av2 = VL =100 =9.09 V/V Step 5 of 5 Calculate the overall voltage gain of the cascade amplifier. (60'6)(6'6)(606'0)= =81.81 V/V Therefore, the overall voltage gain, Av is 81.81 V/V