1 Us = -Vout RF/Rs' AvOL) RF/R$ ' AvOL). (8.18) O Consider an inverting amplifier with open-loop gain 105. With reference to equation 8.18: a. If Rs = 10 k2 and Rp = 1 M2, find the voltage gain Av(CL)- b. Repeat part a if Rs = 10 k2 and Rp = 10 M2. c. Repeat part a if R$ = 10 k2 and Rp = 100 M2. d. Using the resistor values of part c, find Av(CL) if AvOL) → 00.

9.4. The signals in Figure P9.2 are zero except as shown. (a) For the signal x ln] of Figure P9.2(a), plot the following: () xl-n]ufn] (iii) xn}u[n + 2] (v) xn)oln - 21 x,[n]ul -n] (iv) x-njul-2 - n] (vi) x,ln|(8[n + 1] + 6ln - 1) (b) Repeat part (a) for the signal x,ln] of Figure P9.2(b). (e) Repeat part (a) for the signal xn] of Figure P9.2(c). (d) Repeat part (a) for the signal xfn] of Figure P9.2(d). -2-1' 101 2 3 456 (a) (b) ... 6-5-4-3-2-1, 01 23 4567 (d) Figure P9.2