63.7. Comparison with Common Emitter Circuit

Try these first

1. 1.

   What is a cascode amplifier?

   Hint

   Think about how this design might improve signal handling.

2. 2.

   List one key advantage of cascode amplifiers over common emitter amplifiers.

   Hint

   Consider the frequency performance.

3. 3.

   Cascode amplifiers provide better performance than common emitter amplifiers primarily due to lower input capacitance. True or False?

   Hint

   Think about how capacitance affects speed.

4. 4.

   What is one main advantage of a cascode amplifier?

   • Lower voltage gain
   • Higher bandwidth
   • Increased distortion

   Hint

   Consider what happens with capacitors in a high-frequency signal.

5. 5.

   You are designing a circuit requiring minimal noise and clear signals. Compare a cascode amplifier to a common emitter, discussing the pros and cons within this context with relevant calculations.

   Hint

   Consider both the impact of capacitance and the feedback loop's effects.

6. 6.

   Given a cascode amplifier design, develop a step-by-step approach to calculate the gain and present the factors affecting it, using voltage and resistance values.

   Hint

   Leverage the key formulas discussed in class.