alleryStart learning →An NMOS transistor in saturation operates when which condition holds (V_DS, V_GS, V_TN)?
AV_GS = V_TN exactly
BV_GS < V_TN only at any V_DS
CV_DS = 0 V always
DV_GS > V_TN and V_DS ≥ V_GS - V_TN
Answer & Solution
Correct answer: D. V_GS > V_TN and V_DS ≥ V_GS - V_TN
**NMOS regions:** cutoff V_GS<V_TN
triode V_GS>V_TN and V_DS<V_GS-V_TN
saturation V_GS>V_TN and V_DS≥V_GS-V_TN.
**Saturation:** I_D ∝ (V_GS-V_TN)².
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