Question 12.2: Calculate the gain and determine the approximate bandwidth u...

The voltage gain is determined as follows:

R_{\mathrm{G}}=\frac{50.5  \mathrm{k} \Omega}{A_v-1}

A_v-1=\frac{50.5  \mathrm{k} \Omega}{R_{\mathrm{G}}}

A_v=\frac{50.5  \mathrm{k} \Omega}{510  \Omega}+1=\mathbf{1 0 0}

The approximate bandwidth is determined from the graph.

B W \cong 60  \mathrm{kHz}

P R A C T I C E EXERCISE

Modify the circuit in Figure 12–7 for a gain of approximately 45.