
a.
The value of the resistor R1 and R2 in a way that the dc value of the output voltage is 0.
a.

Answer to Problem 11.89P
The value of the resistances are:
Explanation of Solution
Given:
The circuit is given as:
The circuit parameters:
The drain current of
Considering the expression for drain current of
Hence, the value of the resistor
Evaluating the value of source gate voltage of
Considering the expression for the drain current of
Hence, the value of the resistor
b.
To sketch: The small signal equivalent circuit and then find the small signal transistor parameters.
b.

Explanation of Solution
Given:
The circuit is given as:
The circuit parameters:
Evaluating the value of trans-conductance
Substituting
Evaluating the value of trans-conductance of
Evaluating the value of the resistor
Evaluating the value of the resistor
c.
The small signal voltage gain.
c.

Answer to Problem 11.89P
The small signal gain of the circuit is -15.25V/V.
Explanation of Solution
Given:
The circuit is given as:
The circuit parameters:
Drawing the small signal equivalent model of the circuit:
Applying nodal analysis at the input node:
Referring to the above diagram:
Applying the nodal analysis at the output node:
Hence, the small signal gain of the circuit is -15.25V/V.
d.
The output resistance.
d.

Answer to Problem 11.89P
The value of the output resistance is
Explanation of Solution
Given:
The circuit is given as:
The circuit parameters:
Evaluating the output resistance
Substituting
Hence, the value of the output resistance is
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Chapter 11 Solutions
Microelectronics: Circuit Analysis and Design
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