42.2.5. Common Source Amplifier Analysis

Try these first

1. 1.

   What is the purpose of a common source amplifier?

   Hint

   Think about its role within electronic circuits.

2. 2.

   Define Miller effect in context of amplifiers.

   Hint

   Recall how gain affects capacitance in circuit analysis.

3. 3.

   What does a common source amplifier primarily do?

   • Impedance matching
   • Voltage amplification
   • Voltage division

   Hint

   Consider the main function of the amplifier.

4. 4.

   True or False: The Miller effect increases the input capacitance of an amplifier.

   • True
   • False

   Hint

   Think about how gain impacts capacitance.

5. 5.

   Given a common source amplifier with Cgs = 5 pF, Cgd = 10 pF, and a gain of -100, calculate C_in and explain how this affects the frequency response.

   Hint

   Carefully compute terms and relate them to physical concepts.

6. 6.

   Analyze the frequency response of a common source amplifier with Rs = 1 kΩ, C = 1 µF, and R = 100 kΩ. Calculate fL and fU.

   Hint

   Plug in values carefully and remember the interactions between components.