1
Project 2
Student’s Name
Institutional Affiliation
Course Name
Professor’s Name
Date
, 2
Project 2
EE 430 SPICE ASSIGNMENT 2: COMMON-SOURCE AMPLIFIER DESIGN
1.0 Introduction
A common-source amplifier is a field effect transistor, FET topology used to amplify voltage or
transconductance.
2.0 Theoretical analysis
A common-source amplifier ties both the source terminal and one terminal of the input
voltage to ground. The second input of the input voltage is connected to the gate of the
MOSFET. The voltage between the drain and source is the output voltage. Both input and output
share the common source node as shown below:
The small signal analysis equivalent circuit is:
, 3
The ideal input impedance of the above MOSFET is infinite. However, this is not the case in the
real world due to limitations of voltage and current sources.
Project 2
Student’s Name
Institutional Affiliation
Course Name
Professor’s Name
Date
, 2
Project 2
EE 430 SPICE ASSIGNMENT 2: COMMON-SOURCE AMPLIFIER DESIGN
1.0 Introduction
A common-source amplifier is a field effect transistor, FET topology used to amplify voltage or
transconductance.
2.0 Theoretical analysis
A common-source amplifier ties both the source terminal and one terminal of the input
voltage to ground. The second input of the input voltage is connected to the gate of the
MOSFET. The voltage between the drain and source is the output voltage. Both input and output
share the common source node as shown below:
The small signal analysis equivalent circuit is:
, 3
The ideal input impedance of the above MOSFET is infinite. However, this is not the case in the
real world due to limitations of voltage and current sources.
