For the common-gate configuration of Fig. 8.92.a. Determine AvNL, Zi, and Zo.b. Sketch the...

For the common-gate configuration of Fig. 8.92.

a. Determine A_vNL, Z_i, and Z_o.

b. Sketch the two-port model of Fig. 5.75 with the parameters determined in part (a) in place.

c. Determine A_vL and A_vs.

d. Change R_L to 2.2 kΩ and calculate A_vL and A_vs. What was the effect of changing R_L on the voltage gains?

e. Change R_sig to 0.1 kΩ (with R_L at 4.7 kΩ) and calculate A_vL and A_vs. What was the effect of changing R_sig on the voltage gains?

f. Change R_L to 2.2 kΩ and R_sig to 0.1 kΩ and calculate Z_i and Z_o. What was the effect on both parameters?

g. What general conclusions can you draw from the above calculations?

FIG. 8.92.

FIG. 5.75 Emitter-follower configuration with a Darlington amplifier.