Characteristics and applications of common base transistor amplifier

Characteristics:

There are some characteristics of common base transistor amplifier which are given below,

  • It has very high output resistance.
  • It has low input resistance.
  • Its voltage gain is of the order of 1500.
  • Its current gain is less than unity.
  • Its power gain is of the order of 30 dB.
  • Its input and output signals are in phase. i.e. there is no phase reversal between input and output signals.

Applications:

There are some applications of common base transistor amplifier which are given below,

  • It is mainly used at high frequencies where low source resistance is common.
  • It is used for impedance matching in circuits with very low output resistances to those with a high input resistance.
Common base transistor amplifier

Common base transistor amplifier

 

Leave a Reply

Your email address will not be published. Required fields are marked *

Follow @PolytechnicHub