ECE214_MOS_Amp

The input impedance of a common source amplifier

• is higher than that of a CE amplifier

• is infinite

• is small

• is lower that than of a CE amplifier

The gain of a CS amplifier

• increases with L

• decreases with L

• is not a function of L

Source degeneration

• increases the gain of the CS amplifier

• decreases the gain of the CS amplifier

• increases the CS amplifier output impedance

• decreases the CS amplifier output impedance

The gate resistance in a CS amplifier

• increases the low frequency gain

• decreases the low frequency gain

• increases the input impedance

• doesn't affect the gain or the input imedance

The input impedance of a CG stage is

• 0

• 1/gm

• ro