44.1.1. Lecture – 44: Common Collector and Common Drain Amplifiers

Try these first

1. 1.

   What is the primary purpose of a common collector amplifier?

   Hint

   Think about what a buffer does in a circuit.

2. 2.

   Describe the basic function of a common drain amplifier.

   Hint

   Relate the function to the characteristics of MOSFETs.

3. 3.

   What is the expected voltage gain for a common collector amplifier?

   • 0.5
   • 1
   • 2

   Hint

   It is designed to buffer signals without significant amplification.

4. 4.

   True or False: A common drain amplifier has low input resistance.

   • True
   • False

   Hint

   Recall the properties of MOSFET configurations.

5. 5.

   Given a common collector amplifier circuit with specified resistances and inputs, calculate the expected output voltage while considering potential loading effects.

   Hint

   Focus on how resistances interact in the circuit.

6. 6.

   Design a common drain amplifier suited to a specific application involving a sensor. Discuss the rationale behind component selection to maximize performance.

   Hint

   Think about the characteristics required for interfacing effectively.