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how to calculate small signal voltage gain of mosfet in this question?

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3.21. Assuming all MOSFETs are in saturation, calculate the small-signal voltage gain of each circuit
in Fig. 3.73 () # 0, y = 0).
VDD
J.
VDD
T
VDD
1/ M 3
J
VDD
M31Vb3
M21 .Vb2
Vout
o out
Vin- M 2
in - M 2
Vin M2
o Vout
out
41 M,
Vina
(a)
(b)
(c)
(d)
VDD
J
VDD
TVDD
T DD
Mark
Mar
Vouto
Vin-M2
Vby M 2
Vb1-M2
M2 .do Vout
-o out
-o Vout
11
Vb2# M
Vin-M1
Vin--M1
VinM
(f)
(g)
(h)
(e)
Figure 3.73

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