Question

A depletion type N-channel MOSFET is biased in its linear region for use as a voltage controlled resistor. Assume threshold voltage V_TH = 0.5V, V_GS = 2.0V, V_DS = 5V,W/L = 100,   COX= 10^-8F/cm  and  µ_n = − 800cm²/V - s. The value of the resistance of the voltage controlled resistor (in is Ω) ________.

Answer 1

Given V_T = - 0.5V; V_GS = 2V; V_DS = 5V; W/L = 100; C_θx = 10^-8f/cm