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Drain Current of MOSFET at Saturation Region Formula

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Drain Current refers to the current flowing between the drain and source terminals of the transistor when it's in operation. Check FAQs

I d = \frac{β}{2} \cdot {(V gs - V th)}^{2} \cdot (1 + λ i \cdot V ds)

I_d - Drain Current?β - Transconductance Parameter?V_gs - Gate Source Voltage?V_th - Threshold Voltage with Zero Body Bias?λ_i - Channel Length Modulation Factor?V_ds - Drain Source Voltage?

Drain Current of MOSFET at Saturation Region Example

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Here is how the Drain Current of MOSFET at Saturation Region equation looks like with Values.

Here is how the Drain Current of MOSFET at Saturation Region equation looks like with Units.

Here is how the Drain Current of MOSFET at Saturation Region equation looks like.

0.0137 = \frac{0.0025}{2} \cdot {(2.45 - 3.4)}^{2} \cdot (1 + 9 \cdot 1.24)

0.0137A = \frac{0.0025S}{2} \cdot {(2.45V - 3.4V)}^{2} \cdot (1 + 9 \cdot 1.24V)

0.0137 = \frac{0.0025}{2} \cdot {(2.45 - 3.4)}^{2} \cdot (1 + 9 \cdot 1.24)

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Drain Current of MOSFET at Saturation Region Solution

Follow our step by step solution on how to calculate Drain Current of MOSFET at Saturation Region?

FIRST Step Consider the formula

I d = \frac{β}{2} \cdot {(V gs - V th)}^{2} \cdot (1 + λ i \cdot V ds)

Next Step Substitute values of Variables

∴

I d = \frac{0.0025S}{2} \cdot {(2.45V - 3.4V)}^{2} \cdot (1 + 9 \cdot 1.24V)

Next Step Prepare to Evaluate

∴

I d = \frac{0.0025}{2} \cdot {(2.45 - 3.4)}^{2} \cdot (1 + 9 \cdot 1.24)

Next Step Evaluate

∴

I d = 0.013718A

LAST Step Rounding Answer

∴

I d = 0.0137A

Drain Current of MOSFET at Saturation Region Formula Elements

Variables

Drain Current

Drain Current refers to the current flowing between the drain and source terminals of the transistor when it's in operation.

Symbol: I_d

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Drain Current

Transconductance Parameter

Transconductance Parameter is defined as the ratio of the change in the output current to the change in the input voltage of a device.

Symbol: β

Measurement: Electric ConductanceUnit: S

Note: Value should be greater than 0.

Formulas to find Transconductance Parameter

Gate Source Voltage

Gate Source Voltage refers to the potential difference between the gate terminal and the source terminal of the device. This voltage plays a crucial role in controlling the conductivity of the MOSFET.

Symbol: V_gs

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Gate Source Voltage

Threshold Voltage with Zero Body Bias

Threshold Voltage with Zero Body Bias refers to the threshold voltage when there is no external bias applied to the semiconductor substrate (body terminal).

Symbol: V_th

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Threshold Voltage with Zero Body Bias

Channel Length Modulation Factor

Channel Length Modulation Factor where the effective channel length increases with an increase in the drain-to-source voltage.

Symbol: λ_i

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Channel Length Modulation Factor

Drain Source Voltage

Drain Source Voltage is the voltage accross drain and source terminal.

Symbol: V_ds

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Drain Source Voltage

Other formulas in MOS IC Fabrication category

Go Body Effect in MOSFET

V t = V th + γ \cdot (\sqrt{2 \cdot Φ f + V bs} - \sqrt{2 \cdot Φ f})

Go MOSFET Unity-Gain Frequency

f t = \frac{g m}{C gs + C gd}

Go Channel Resistance

R ch = \frac{L t}{W t} \cdot \frac{1}{μ n \cdot Q on}

Go Propagation Time

T p = 0.7 \cdot N \cdot (\frac{N + 1}{2}) \cdot R m \cdot C l

How to Evaluate Drain Current of MOSFET at Saturation Region?

Drain Current of MOSFET at Saturation Region evaluator uses Drain Current = Transconductance Parameter/2*(Gate Source Voltage-Threshold Voltage with Zero Body Bias)^2*(1+Channel Length Modulation Factor*Drain Source Voltage) to evaluate the Drain Current, The Drain Current of MOSFET at Saturation Region is defined as the phenomena where the effective channel length increases with an increase in the drain-to-source voltage . Drain Current is denoted by I_d symbol.

How to evaluate Drain Current of MOSFET at Saturation Region using this online evaluator? To use this online evaluator for Drain Current of MOSFET at Saturation Region, enter Transconductance Parameter (β), Gate Source Voltage (V_gs), Threshold Voltage with Zero Body Bias (V_th), Channel Length Modulation Factor (λ_i) & Drain Source Voltage (V_ds) and hit the calculate button.

FAQs on Drain Current of MOSFET at Saturation Region

What is the formula to find Drain Current of MOSFET at Saturation Region?

The formula of Drain Current of MOSFET at Saturation Region is expressed as Drain Current = Transconductance Parameter/2*(Gate Source Voltage-Threshold Voltage with Zero Body Bias)^2*(1+Channel Length Modulation Factor*Drain Source Voltage). Here is an example- 0.013718 = 0.0025/2*(2.45-3.4)^2*(1+9*1.24).

How to calculate Drain Current of MOSFET at Saturation Region?

With Transconductance Parameter (β), Gate Source Voltage (V_gs), Threshold Voltage with Zero Body Bias (V_th), Channel Length Modulation Factor (λ_i) & Drain Source Voltage (V_ds) we can find Drain Current of MOSFET at Saturation Region using the formula - Drain Current = Transconductance Parameter/2*(Gate Source Voltage-Threshold Voltage with Zero Body Bias)^2*(1+Channel Length Modulation Factor*Drain Source Voltage).

Can the Drain Current of MOSFET at Saturation Region be negative?

No, the Drain Current of MOSFET at Saturation Region, measured in Electric Current cannot be negative.

Which unit is used to measure Drain Current of MOSFET at Saturation Region?

Drain Current of MOSFET at Saturation Region is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Drain Current of MOSFET at Saturation Region can be measured.

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Drain Current of MOSFET at Saturation Region Formula

Drain Current of MOSFET at Saturation Region Example

Drain Current of MOSFET at Saturation Region Solution

Drain Current of MOSFET at Saturation Region Formula Elements

Other formulas in MOS IC Fabrication category

How to Evaluate Drain Current of MOSFET at Saturation Region?

FAQs on Drain Current of MOSFET at Saturation Region

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