64.4.1. AC Analysis Overview

Try these first

1. 1.

   What is a cascode amplifier?

   Hint

   Think about how two transistors work together.

2. 2.

   What is capacitance's role in frequency response?

   Hint

   Remember how high capacitance relates to low frequencies.

3. 3.

   What is the primary purpose of a cascode amplifier?

   • To decrease gain
   • To increase gain and bandwidth
   • To reduce input capacitance

   Hint

   Recall the key benefits of using a cascode in amplifiers.

4. 4.

   The Miller effect increases input capacitance. True or False?

   • True
   • False

   Hint

   Think about how gain interacts with capacitance.

5. 5.

   Design a cascode amplifier with specific component values to achieve a target gain of 100, considering real-world effects.

   Hint

   Focus on both the transistor configurations and the external loads.

6. 6.

   Evaluate how changing the source resistance impacts the overall amplifier performance in a cascode configuration.

   Hint

   Review the relationships between resistance, gain, and bandwidth.