Consider the amplifier circuit of Fig. 7.15(a) without the load resistance R, and with channel-length modulation neglected. Let Vpp = 5 V, V, = 0.7 V, and k = 1 mA/V. Find Vov. I. R. and R, to obtain a voltage gain of -25 V/V and an input resistance of 0.5 M 2. What is the maximum allowable input signal, ? Example 7.3 continued 25 Ra 10 M + 11 Ri 154 105 8- Ra VDD = + 15 V R = 10 kn www 16=0: www 8m + VOD Iv (1 Rp R = 10 kf www www 3 www R % (c) Figure 7.15 Example 7.3: (a) amplifier circuit; (b) circuit for determining the de operating point: (c) the amplifier small-signal equivalent circuit; (d) a simplified version of the circuit in (c).