ECE214_CE

An ideal voltage amplifier should have

• infinite input impedance

• zero input impedance

• infinite output impedance

• zero output impedance

Emitter degeneration is used for

• increasing the gain

• stabilizing the operating point

• decreasing the output impedance

• decreasing the input impedance

Self biasing BJT amplifiers

• saves quiescent current

• guarantees active mode of operation

• increases voltage gain

• maximizes output swing

Common Emitter amplifiers have

• High voltage gain

• High current gain

• Low voltage gain

• Low current gain

The intrinsic gain of a CE amplifier

• is directly proportional to the Early voltage

• is negative

• is inversely proportional to the Early voltage

• is positive