Problem 1The gm1= gm2= 120 μS. Assume R1= R2= R3= 1 K. C1= 100 pF and neglect all other capacitors. Channel length modulation parameter = 0. (a) Identify the type of feedback(b)Discuss what happens to input/output impedances before and after feedback is applied(c)Estimate the numerical values closed-loop voltage gain for very low frequencies and very high frequencies(d)Discuss the steps you have taken to arrive at the answers.
Problem 2The gm1= gm2= gm3= gm4= 120 μS. Assume R1= R2= 1 K. Channel length modulation parameter = 0. (a) Identify the type of feedback(b)Discuss what happens to input/output impedances beforeand after feedback is applied(c) Estimate the numerical values of the closed-loop voltage gain and output impedance (d)Discuss the steps you have taken to arrive at the answers.
