61.1.3. Miller Effect and Input Capacitance

Try these first

1. 1.

   What is the Miller effect?

   Hint

   Think about how gain affects capacitance.

2. 2.

   Define input capacitance in the context of amplifiers.

   Hint

   It deals with how signals enter the amplifier.

3. 3.

   What does the Miller effect primarily influence?

   • Input Resistance
   • Input Capacitance
   • Output Voltage

   Hint

   Think about which parameter increases due to gain.

4. 4.

   In cascode amplifiers, how does the gain affect the input capacitance?

   • True
   • False

   Hint

   Is lower gain beneficial or detrimental?

5. 5.

   Given a cascode amplifier designed to have a gain of 2, calculate the impact on input capacitance if the original input capacitance was 10pF.

   Hint

   Remember the Miller effect formula with the gain factor.

6. 6.

   Draw a comparison circuit diagram for a common emitter amplifier and a cascode amplifier. Explain the differences in terms of input capacitance and gain.

   Hint

   Focus on how each transistor arrangement affects capacitance and signal integrity.