2.2. Differential Amplifier

Try these first

1. 1.

   What is single-ended signaling?

   Hint

   Consider how the signal is grounded.

2. 2.

   Define differential signaling in your own words.

   Hint

   Think about how two signals work together.

3. 3.

   What does a differential amplifier do?

   • Amplifies a single signal.
   • Amplifies the difference between two signals.
   • Amplifies common mode signals.

   Hint

   Remember the key purpose of this type of amplifier.

4. 4.

   True or False: Differential signaling is used primarily to reduce electrical noise.

   Hint

   Think about noise issues in electronics.

5. 5.

   Design a basic circuit using a differential amplifier to amplify a signal with a given set of input voltages. Calculate the output voltage given appropriate gains.

   Hint

   Identify which value is V1 and which is V2.

6. 6.

   Evaluate the benefits of using differential signaling in high-noise environments versus single-ended signaling.

   Hint

   Consider how each signaling type interacts with common noise sources.