65.1.4. Lecture – 65

Try these first

1. 1.

   What is a cascode amplifier?

   Hint

   Think about the amplifier's stages.

2. 2.

   Why is an active load preferred over a passive load?

   Hint

   Remember the role of the load in gain.

3. 3.

   What type of load does a cascode amplifier primarily use?

   • Passive
   • Active
   • Both

   Hint

   Think about the benefits of an active load.

4. 4.

   True or False: The voltage gain of a cascode amplifier can reach very high values.

   • True
   • False

   Hint

   Recall the gain values discussed.

5. 5.

   Design a cascode amplifier with specific parameters: an active load of 10 MΩ and a bias current of 1 mA. Calculate the new voltage gain.

   Hint

   Substitute your values carefully into the formula.

6. 6.

   Discuss potential issues with bandwidth in a circuit utilizing a cascode amplifier when aiming for both high gain and high bandwidth.

   Hint

   Think about the relationship between gain and bandwidth discussed in class.