74.3.1. Requires Differential Amplifier for Op-Amp Implementation

Try these first

1. 1.

   What is the primary function of a differential amplifier?

   Hint

   Think about what the amplifier focuses on.

2. 2.

   Define common-mode signal.

   Hint

   Consider what 'common' means.

3. 3.

   What does a differential amplifier primarily amplify?

   • Common-mode signal
   • Differential signal
   • Both signals equally

   Hint

   Focus on what sets it apart from other amplifiers.

4. 4.

   True or False: High common mode gain is desirable in differential amplifiers.

   • True
   • False

   Hint

   Consider the purpose of differential amplifiers.

5. 5.

   Design a differential amplifier circuit for a signal with a known common-mode voltage and explain how you would minimize the effect of that voltage on the output.

   Hint

   Consider the circuit configuration that emphasizes differential inputs.

6. 6.

   Explain a scenario in a communication setup where failing to use a differential amplifier leads to data corruption. What would the outcome be?

   Hint

   Think about the effect of interference on transmitted and received signals.