Question

The amplifiers X, Y and Z are connected in series. If the voltage gains of X, Y and Z are 10, 20 and 30, respectively and the input signal is 1 mV peak value, then what is the output signal voltage (peak value) 

(i) if dc supply voltage is 10V? 

(ii) if dc supply voltage is 5V?

Answer 1

(i) 10 × 20 × 30 × 10^–3 = 6V

(ii) If dc supply voltage is 5V, the output peak will not exceed Vcc = 5V.

Hence, V₀ = 5V.