The voltage gain of an amplifier is described in the s-domain as shown below. R1 1 R2|| 'sC2} Av(s) = -gm- 1 R1 + sC1 a) Determine the pole(s) if any. Showr your work! b) Determine the zeros(s) if any. Show your work! c) Crudely graph a straight line approximation for the Bode Plot of the voltage gain asfunction of frequency. Label key values and slopes. You may makereasonable approximations for the relative values of poles and zeros. In other words, you may assume that a particular pole/zero is larger than another, and that choice is yours.

752. See Figure 752. D=5. The Bode gain and phase plots for a RC circuit are shown in the fig. Determine gain (dB), phase (deg), and frequency (rad/sec) for the points labeled A and B. Also find the other exponents (C,E,F). Answers: GdBA,phA,wA,GdBB,phB,wB,C,E,F.

Q6) An ideal voltage amplifier having a voltage gain of -1000 V/V has a 0.1-pF capacitance connected between its output and input terminals. What is the input capacitance of the amplifier? If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 10 kn, find the transfer function Vo/Vsig as a function of the complex-frequency variables and hence the 3-dB frequency fi and the unity-gain frequency ft.

753. For the transfer function (TF) 4s/(s+9) and resulting Bode Plot, calculate the gains (dB) at the corner, one decade below, and one decade above. Also calculate the phase (deg) of the TF at the same three frequencies. Last answer is w_corner (rad/sec) ans:7 Repeat Ex. 753 using asymptotic approximations. ans:6