The formula to calculate the Saturation Drain Current is:
\[ Is = 0.5 \cdot gm \cdot (Vgs - Vth) \]
Diode Saturation current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another.
Let's assume the following values:
Using the formula:
\[ Is = 0.5 \cdot 0.036 \cdot (1.25 - 0.7) = 0.0099 \text{ A} \]
| Transconductance Parameter (gm) | Gate Source Voltage (Vgs) | Threshold Voltage (Vth) | Saturation Drain Current (Is) |
|---|---|---|---|
| 0.035 S | 1.25 V | 0.7 V | 0.009625000000 A |
| 0.036 S | 1.25 V | 0.7 V | 0.009900000000 A |