Reference no: EM13799074
Question 1- What are the values for Av, Rin, Rout, and Ai(i0/i1) for the amplifier shown below. R4= 50kΩ, RI=100Ω, and RL= 40kΩ. VTN=0.8V, VGS=3V, VDS=5V, IDS=1mA, and λ=0.005.
![1648_img1.png](https://secure.expertsmind.com/CMSImages/1648_img1.png)
Question 2- Given the circuit and parameters below.
For the common source amplifier: VDD =10V, R1=1 MΩ, R2 =1.5 MΩ, RD=5 KΩ, RS = 2kΩ. Kn = 0.01 A/V2. λ = 0.01 VTN = 1.0V.
For the common collector amplifier: R4=60 KΩ, R3=40 kΩ, RC=4 KΩ, RE=300 Ω, gm = 0.4S, and ßo = 100. R5 = 1500Ω.
Draw the AC equivalent circuit below this diagram. Calculate and show all equivalent resistances (like R1 II R2 for example.) Ri = 5KΩ.
![2439_img2.png](https://secure.expertsmind.com/CMSImages/2439_img2.png)
a) For the DC operating point, write the 3 equations relating VGS, VDS, and IDS. State any assumptions. Find VDS and IDS given VGS = 1.5 V. Neglect channel length modulation.
b) Find the terminal input impedance of stage 2 [RiB]. (Looking in, just after R3 and R4).
c) Find the output impedance? (Looking in, just left of C5).
d) Calculate the AC terminal voltage gain for stage 1.
e) Find the overall voltage gain.