NMOS Saturation I-V & Transconductance Calculator

NMOS Saturation I–V & Transconductance Calculator

Calculate the drain current $I_{D}$ and transconductance $g_{m}$ of an NMOS in saturation mode.

* Ensure that $V_{G S} > V_{T N}$ and $V_{D S} > V_{G S} - V_{T N}$ .

Step 1: Enter NMOS Parameters

Gate-Source Voltage,

V_{G S}

(V)

e.g., 2.5 V

Threshold Voltage,

V_{T N}

(V)

e.g., 1 V

Drain-Source Voltage,

V_{D S}

(V)

e.g., 2 V (must be > $V_{G S} - V_{T N}$ )

Process Parameter,

k_{n}

(A/V²)

e.g., 0.001 A/V²

W / L

Ratio

Dimensionless (e.g., 10)