M1 Rs R1 Zout R2 (a) (b) · Compute the impedance looking into the source terminal of M1 as a function of frequency. Ignore Cgd for simplicity and do not include C1 in your analysis. · If 1/gm < Rs, the output impedance of the source follower shown in figure la shows inductive behavior. Explain why. · If we use an equivalent three-component circuit shown in figure 1b to represent the output impedance of the source follower, find the expressions for all three elements.

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Refer to the figure below. Note that the component L is an inductor.
VDD
L
M1
Rs
R1
Zout
R2
(a)
(b)
· Compute the impedance looking into the source terminal of M1 as a function of
frequency. Ignore Cga for simplicity and do not include C1 in your analysis.
· If 1/gm < Rs, the output impedance of the source follower shown in figure la shows
inductive behavior. Explain why.
· If we use an equivalent three-component circuit shown in figure 1b to represent the
output impedance of the source follower, find the expressions for all three elements.
Transcribed Image Text:Refer to the figure below. Note that the component L is an inductor. VDD L M1 Rs R1 Zout R2 (a) (b) · Compute the impedance looking into the source terminal of M1 as a function of frequency. Ignore Cga for simplicity and do not include C1 in your analysis. · If 1/gm < Rs, the output impedance of the source follower shown in figure la shows inductive behavior. Explain why. · If we use an equivalent three-component circuit shown in figure 1b to represent the output impedance of the source follower, find the expressions for all three elements.
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