Consider the circuit shown in Figure 4.14. Assume transistor parameters of
The design parameters of the circuit. The small-signal voltage gain.
Answer to Problem 4.4EP
Design parameters are:
Small-signal voltage gain is
Explanation of Solution
Given Information:
The given circuit diagram is shown below.
The Q -point is in the center of the saturation region.
Calculation:
If the Q -point is to be in the middle of saturation region, the current at the transition point must be
Calculating
If the Q -point is to be in the middle of saturation region, the value of
It would yield a 2.76 V peak to peak symmetrical output voltage.
The value of
The value of
The figure of load line is:
The value of
The value of
The value of transconductance is:
The small-signal output resistance is:
The small-signal equivalent circuit is:
The output voltage is:
The value of
Applying voltage division rule:
Putting the value of
The value of small signal voltage gain is:
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Chapter 4 Solutions
Microelectronics: Circuit Analysis and Design
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