33.5.10. Performance Comparison

Try these first

1. 1.

   Define voltage gain.

   Hint

   It's often expressed in decibels.

2. 2.

   What is the primary advantage of high input resistance?

   Hint

   Think about how it affects performance.

3. 3.

   What does the voltage gain of the Common Source Amplifier depend on?

   • Transconductance and load resistance
   • Input resistance only
   • Output voltage only

   Hint

   Reflect on the formula A = -gₘRₗ.

4. 4.

   True or False: The Common Emitter Amplifier generally has higher voltage gain than the Common Source Amplifier.

   • True
   • False

   Hint

   Think about typical voltage gain values.

5. 5.

   Design a Common Source Amplifier circuit with specified parameters and calculate the expected voltage gain.

   Hint

   Use base MOSFET parameters to estimate gₘ.

6. 6.

   Given the trade-offs between Common Source and Common Emitter amplifiers, discuss in a scenario where you would opt for a Common Source configuration over Emitter.

   Hint

   Think VLSI design scenarios.