54.4. Summary of the Module

Try these first

1. 1.

   What is the primary purpose of a common gate amplifier?

   Hint

   Think about what amplifiers primarily do.

2. 2.

   Define voltage swing.

   Hint

   Consider how much the output can change.

3. 3.

   What defines a common gate amplifier?

   • It has a common source
   • It is a series connection
   • It has a common gate terminal

   Hint

   Think about how this configuration is named.

4. 4.

   True or False: The voltage gain of a common base amplifier is usually low.

   • True
   • False

   Hint

   Recall the context of how gains are evaluated.

5. 5.

   Design a common gate amplifier that can achieve a 6 V output swing with a 12 V supply while maintaining a 250Ω input impedance. What steps would you follow?

   Hint

   Start from the maximum values and work towards the configurations.

6. 6.

   Evaluate the performance alteration in a common base amplifier when the input impedance is altered to 1000Ω. How does this impact overall gains?

   Hint

   Think about how gains interact with impedance.