PMOS Triode Mode I–V Calculator

PMOS Triode Mode I–V Calculator

Calculate the drain current \(I_D\) for a PMOS transistor operating in the triode region.

* Enter voltages as positive magnitudes. Ensure \(V_{SG} > V_{TP}\) and \(V_{SD} < V_{SG} - V_{TP}\).

Step 1: Enter PMOS Parameters

e.g., 3.0 V

e.g., 1.0 V (absolute value)

e.g., 0.5 V (must be less than \(V_{SG} – V_{TP}\))

e.g., 0.001 A/V²

Dimensionless (e.g., 10)

PMOS Triode Equation: $$ I_D = k_p \frac{W}{L} \left[\left(V_{SG} – V_{TP}\right)V_{SD} – \frac{V_{SD}^2}{2}\right] $$

Transconductance: $$ g_m = k_p \frac{W}{L} \left(V_{SG} – V_{TP}\right) $$