For a MOSFET, the pinch-off voltage is -3V. Gate to source voltage is 20V. W/L ratio is 5. Process transconductance parameter is 40μA/V^2. Find drain to source current in saturation.(a) 0.10 mA(b) 0.05mA(c) – 0.05mA(d) – 50AI got this question at a job interview.My enquiry is from Biasing of JFET and MOSFET topic in portion FET Amplifiers of Analog Circuits

For a MOSFET, the pinch-off voltage is -3V. Gate to source voltage is

1.	For a MOSFET, the pinch-off voltage is -3V. Gate to source voltage is 20V. W/L ratio is 5. Process transconductance parameter is 40μA/V^2. Find drain to source current in saturation.(a) 0.10 mA(b) 0.05mA(c) – 0.05mA(d) – 50AI got this question at a job interview.My enquiry is from Biasing of JFET and MOSFET topic in portion FET Amplifiers of Analog Circuits
Answer» The CORRECT answer is (C) – 0.05mA For explanation I would say: ISD = K’W(VSG – \|VT\|)^2/2L ISD = 205(-20-3)^2 = 52900μA = 0.05mA.

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