74.1. Analog Electronic Circuits

Try these first

1. 1.

   What is the main function of a differential amplifier?

   Hint

   Think about what two signals are compared.

2. 2.

   What does CMRR stand for?

   Hint

   Focus on what is being rejected.

3. 3.

   What is the primary role of a differential amplifier?

   • Suppress all signals
   • Amplify common mode signals
   • Amplify the difference between two input signals

   Hint

   Think about what they are precisely intended to do.

4. 4.

   True or False: Differential signaling involves sending two identical signals.

   • True
   • False

   Hint

   What is meant by complementary signals?

5. 5.

   Design a simple circuit using a differential amplifier to filter out noise from two sensor inputs, explaining how you would achieve high CMRR.

   Hint

   Consider the relationship between common mode and differential signals.

6. 6.

   Explain how differential signaling allows for better performance in a communication system over twisted pair cables.

   Hint

   Think about how noise interacts with parallel cables.