75.6. Variants of Differential Amplifier

Try these first

1. 1.

   What is the primary function of a differential amplifier?

   Hint

   Think about how this differs from a regular amplifier.

2. 2.

   Define common mode gain.

   Hint

   Consider the scenario when both inputs are identical.

3. 3.

   What is the main purpose of a differential amplifier?

   • To amplify noise
   • To amplify signal differences
   • To filter signals

   Hint

   Think about its role in electronic circuits.

4. 4.

   True or False: A_c should be maximized in a differential amplifier design.

   • True
   • False

   Hint

   Consider what you want to achieve in signal processing.

5. 5.

   You are designing a differential amplifier for a mixed signal application. Discuss how you would manage the balance between A_d and A_c to ensure clean signal amplification.

   Hint

   Think widely about all factors influencing performance.

6. 6.

   If a differential amplifier’s A_d is measured as 100 and A_c is 10, what adjustments could be made to improve performance without sacrificing A_d?

   Hint

   Investigate component arrangements and their implications.