51.1.12. Conclusion on Common Base Amplifier Analysis

Try these first

1. 1.

   What is the approximate voltage gain of a common base amplifier discussed in the session?

   Hint

   Recall the numerical example mentioned in class.

2. 2.

   What is the input impedance of the common base amplifier covered in this section?

   Hint

   Refer to the calculated input impedance discussed.

3. 3.

   What is the voltage gain of the common base amplifier?

   • 50
   • 108.85
   • 1

   Hint

   Look at the numerical examples shared in the lecture.

4. 4.

   The input impedance of the common base amplifier is:

   • True
   • False

   Hint

   Review the specific impedance discussed.

5. 5.

   A common base amplifier has a specified output impedance of 2.83 kΩ and input capacitance of 10 pF. Given a frequency of operation is 1 MHz, calculate the phase shift introduced by the capacitive element.

   Hint

   Can you find out how capacitors affect high-frequency signals?

6. 6.

   If an amplifier has an input equivalent network considering a source resistance of 10 kΩ, how would you design it to mitigate attenuation and improve voltage gain?

   Hint

   Think about ways in which amplifiers might improve signal handling.