common-mode feedback, when evaluated for common-mode signals. Assume that all
transistors are biased to have a | Veff|=0.1 V with λ = 0.25 V-¹. The transistors are sized such
that M1-M2 have W/L ratio of 0.5Kn; M3 has W/L ratio of Kp; M4-M5 have W/L ratio of 10kp;
M6-M7 has W/L ratio of 5Kn; and M8-M10 have W/L ratio of Kn. Calculate the following:
a. Loop gain
b. Beta for Vset/Vout
c. Closed-loop gain, Acl = Vout/Vset, including effects of the loop gain
d.
If lambda were doubled, calculate the percent change in loop gain and percent change
in closed-loop gain (i.e., (Xnew-Xold)/Xold x 100%).
e.
Explain why the percentage errors are so different between T and Acl.
MIO
M9
ходиа
Kn
Loke
M4
M5
Voino
Vort JMI
to
Mb 5 kn
M7
5kn
500μA
M2
0.5 км
M8
M3
Кр
Kn
100μA
Vset
Fig: 1