In a Diode Connected NMOS, if we apply voltage across the two terminals, please write the Voltage and Current relation, and plot the Voltage and Current Relation.
Determine the maximum value of V1 for the transistor M1 (NMOS) to be operating in Triode mode. (Vth = 1 V, kn' = 1 mA/V2, lambda = 0).
The n-channel MOSFET in the circuit below is at the DC operating point of ID = 1 mA, VDS = 1 V and VGS - VTN = 0.2 V. The transistor has negligible channel length modulation effect and body effect, i.e., lambda = 0 and gamma = 0. The two coupling capacitors have infinite capacitance. Rx = 10 kohm, RS = 10 kohm, RD = 20 kohm and RL = 20 kohm. a) Identify the circuit as a common-source, common-drain or common-gate amplifier. b) Calculate the small-signal parameter gm and the current efficiency gm/ID of the transistor. c) The gate of the transistor in this circuit is an AC ground although no capacitor is used. Why? d) Draw a small-signal AC equivalent of the circuit. The transistor must be represented by its small signal equivalent circuit. e) Find the overall small-signal AC current gain iL/ix?