46.7. Additional Components Consideration

Try these first

1. 1.

   Define voltage gain in the context of amplifiers.

   Hint

   Think about how much the output increases relative to the input.

2. 2.

   What does input resistance indicate in an amplifier?

   Hint

   Consider how resistance can affect current flow.

3. 3.

   What is the approximate voltage gain of a common collector amplifier?

   • 0
   • 1
   • 2

   Hint

   Think about the function of a buffer.

4. 4.

   True or False: The input resistance in a common collector amplifier decreases with added load resistors.

   • True
   • False

   Hint

   Consider how resistors behave in parallel.

5. 5.

   A common collector amplifier with a collector resistance of 1kΩ needs to supply a load of 500Ω. Calculate the overall voltage gain and input resistance that this configuration would yield.

   Hint

   Consider using KCL and voltage division rules.

6. 6.

   In a common drain MOSFET amplifier with a given input capacitance of 12pF, analyze how the voltage gain of 0.8 will impact overall input capacitance based on the Miller effect.

   Hint

   Utilize the formula for Miller effect on capacitance.