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Drain Current using Transconductance Formula

GoDrain Current given process transconductance and transconductance Formula

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Drain current is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits. Check FAQs

i d = (V ov) \cdot \frac{g m}{2}

i_d - Drain Current?V_ov - Overdrive Voltage?g_m - Transconductance?

Drain Current using Transconductance Example

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Here is how the Drain Current using Transconductance equation looks like with Values.

Here is how the Drain Current using Transconductance equation looks like with Units.

Here is how the Drain Current using Transconductance equation looks like.

0.08 = (0.32) \cdot \frac{0.5}{2}

0.08mA = (0.32V) \cdot \frac{0.5mS}{2}

0.08 = (0.32) \cdot \frac{0.5}{2}

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Drain Current using Transconductance Solution

Follow our step by step solution on how to calculate Drain Current using Transconductance?

FIRST Step Consider the formula

i d = (V ov) \cdot \frac{g m}{2}

Next Step Substitute values of Variables

∴

i d = (0.32V) \cdot \frac{0.5mS}{2}

Next Step Convert Units

∴

i d = (0.32V) \cdot \frac{0.0005S}{2}

Next Step Prepare to Evaluate

∴

i d = (0.32) \cdot \frac{0.0005}{2}

Next Step Evaluate

∴

i d = 8E-05A

LAST Step Convert to Output's Unit

∴

i d = 0.08mA

Drain Current using Transconductance Formula Elements

Variables

Drain Current

Drain current is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.

Symbol: i_d

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Drain Current

Overdrive Voltage

Overdrive voltage is a term used in electronics and refers to the voltage level applied to a device or component that exceeds its normal operating voltage.

Symbol: V_ov

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Overdrive Voltage

Transconductance

Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.

Symbol: g_m

Measurement: Electric ConductanceUnit: mS

Note: Value can be positive or negative.

Formulas to find Transconductance

Other Formulas to find Drain Current

Go Drain Current given process transconductance and transconductance

i d = \frac{{g m}^{2}}{2 \cdot WL \cdot k' n}

Other formulas in Transconductance category

Go Transconductance given Drain Current

g m = \sqrt{2 \cdot k' n \cdot WL \cdot i d}

Go Transconductance given Process Transconductance Parameter

g m = k' n \cdot WL \cdot (V gs - V th)

Go Transconductance using Process Transconductance Parameter and Overdrive Voltage

g m = k' n \cdot WL \cdot V ov

Go Process Transconductance given Transconductance and Drain Current

k' n = \frac{{g m}^{2}}{2 \cdot WL \cdot i d}

How to Evaluate Drain Current using Transconductance?

Drain Current using Transconductance evaluator uses Drain Current = (Overdrive Voltage)*Transconductance/2 to evaluate the Drain Current, The drain current using Transconductance in a MOSFET can be calculated using the transconductance (gm) of the device. The transconductance represents the change in drain current with respect to the change in gate-source voltage. Drain Current is denoted by i_d symbol.

How to evaluate Drain Current using Transconductance using this online evaluator? To use this online evaluator for Drain Current using Transconductance, enter Overdrive Voltage (V_ov) & Transconductance (g_m) and hit the calculate button.

FAQs on Drain Current using Transconductance

What is the formula to find Drain Current using Transconductance?

The formula of Drain Current using Transconductance is expressed as Drain Current = (Overdrive Voltage)*Transconductance/2. Here is an example- 80 = (0.32)*0.0005/2.

How to calculate Drain Current using Transconductance?

With Overdrive Voltage (V_ov) & Transconductance (g_m) we can find Drain Current using Transconductance using the formula - Drain Current = (Overdrive Voltage)*Transconductance/2.

What are the other ways to Calculate Drain Current?

Here are the different ways to Calculate Drain Current-

Drain Current=Transconductance^2/(2*Aspect Ratio*Process Transconductance Parameter)

Can the Drain Current using Transconductance be negative?

No, the Drain Current using Transconductance, measured in Electric Current cannot be negative.

Which unit is used to measure Drain Current using Transconductance?

Drain Current using Transconductance is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Drain Current using Transconductance can be measured.

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