70.4.1. Basic Differences between Single Ended and Differential Amplifiers

Try these first

1. 1.

   What is a single-ended amplifier?

   Hint

   Think about the basic setup of amplifiers.

2. 2.

   Define differential gain.

   Hint

   Consider what we’re amplifying in a differential amplifier.

3. 3.

   What does a single-ended amplifier compare its signal to?

   • A differential signal
   • A common ground
   • Both inputs

   Hint

   Remember the basic principle of its operation.

4. 4.

   True or False: Differential amplifiers focus solely on the common mode signal.

   • True
   • False

   Hint

   Recall the definition of a differential amplifier.

5. 5.

   Design a circuit that could benefit from using a differential amplifier rather than a single-ended amplifier. Justify your design choice.

   Hint

   Think about where noise tends to interfere in signals.

6. 6.

   Calculate the differential gain if the input difference is 0.5V and the output is 5V.

   Hint

   Use the formula for gain proportionally related to output and input difference.