How to Calculate Drain Current?
Drain Current calculator uses Drain Current = Mobility of Electron*Gate Oxide Capacitance*(Gate Junction Width/Gate Length)*(Gate Source Voltage-Threshold Voltage)*Drain Source Saturation Voltage to calculate the Drain Current, Drain Current is defined as the sub threshold current and varies exponentially with gate to source voltage below threshold voltage. Drain Current is denoted by ID symbol.
How to calculate Drain Current using this online calculator? To use this online calculator for Drain Current, enter Mobility of Electron (μn), Gate Oxide Capacitance (Cox), Gate Junction Width (Wgate), Gate Length (Lg), Gate Source Voltage (Vgs), Threshold Voltage (Vth) & Drain Source Saturation Voltage (Vds) and hit the calculate button. Here is how the Drain Current calculation can be explained with given input values -> 891000 = 180*7.5E-08*(0.00023/2.3E-09)*(1.25-0.7)*1.2.