Question

An NMOS amplifier is to be designed to provide a 0.50-V peak output signal across a 50- kΩ load that can be used as a drain resistor. If a gain of at least 5 V/V is needed, what gm is required?

Answer 1

The gm required is 0.1
`(mA)/(V)`

Step-by-step explanation:

Knowing

Vpeak = 0.50 V

Rd = 50 kΩ

Av = 5 V/V

To find the transconductance we should to use the equation

Av = gm * Rd

so,

gm = Av/Rd

gm = 5/50 = 0.1
`(mA)/(V)`