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Drain Current of Low Noise Amplifier Formula

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Drain Current is the current flowing through the drain terminal of a field-effect transistor . Check FAQs

I d = \frac{g m \cdot (V gs - V th)}{2}

I_d - Drain Current?g_m - Transconductance?V_gs - Gate to Source Voltage?V_th - Threshold Voltage?

Drain Current of Low Noise Amplifier Example

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Here is how the Drain Current of Low Noise Amplifier equation looks like with Values.

Here is how the Drain Current of Low Noise Amplifier equation looks like with Units.

Here is how the Drain Current of Low Noise Amplifier equation looks like.

11.99 = \frac{2.18 \cdot (43 - 32)}{2}

11.99A = \frac{2.18S \cdot (43V - 32V)}{2}

11.99 = \frac{2.18 \cdot (43 - 32)}{2}

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Drain Current of Low Noise Amplifier Solution

Follow our step by step solution on how to calculate Drain Current of Low Noise Amplifier?

FIRST Step Consider the formula

I d = \frac{g m \cdot (V gs - V th)}{2}

Next Step Substitute values of Variables

∴

I d = \frac{2.18S \cdot (43V - 32V)}{2}

Next Step Prepare to Evaluate

∴

I d = \frac{2.18 \cdot (43 - 32)}{2}

LAST Step Evaluate

∴

I d = 11.99A

Drain Current of Low Noise Amplifier Formula Elements

Variables

Drain Current

Drain Current is the current flowing through the drain terminal of a field-effect transistor .

Symbol: I_d

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Drain Current

Transconductance

Transconductance is a measure of how much current the amplifier can produce for a given input voltage.

Symbol: g_m

Measurement: TransconductanceUnit: S

Note: Value should be greater than 0.

Formulas to find Transconductance

Gate to Source Voltage

Gate to Source Voltage is the voltage applied between the gate and source terminals of a field-effect transistor.

Symbol: V_gs

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Gate to Source Voltage

Threshold Voltage

Threshold Voltage is the minimum gate-to-source voltage that is needed to create a conducting path between the source and drain terminals of a field-effect transistor.

Symbol: V_th

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Threshold Voltage

Other formulas in RF Microelectronics category

Go Return Loss of Low-Noise Amplifier

Γ = mod \underset{̲}{u} s {(\frac{Z in - R s}{Z in + R s})}^{2}

Go Voltage Gain of Low Noise Amplifier

A v = g m \cdot R d

Go Voltage Gain of Low Noise Amplifier given DC Voltage Drop

A v = 2 \cdot \frac{V rd}{V gs - V th}

Go Output Impedance of Low Noise Amplifier

R out = (\frac{1}{2}) \cdot (R f + R s)

How to Evaluate Drain Current of Low Noise Amplifier?

Drain Current of Low Noise Amplifier evaluator uses Drain Current = (Transconductance*(Gate to Source Voltage-Threshold Voltage))/2 to evaluate the Drain Current, The Drain Current of Low Noise Amplifier formula is defined as a measure of how much current the amplifier draws from the power supply. It is an important parameter because it affects the amplifier's noise figure and power consumption. Drain Current is denoted by I_d symbol.

How to evaluate Drain Current of Low Noise Amplifier using this online evaluator? To use this online evaluator for Drain Current of Low Noise Amplifier, enter Transconductance (g_m), Gate to Source Voltage (V_gs) & Threshold Voltage (V_th) and hit the calculate button.

FAQs on Drain Current of Low Noise Amplifier

What is the formula to find Drain Current of Low Noise Amplifier?

The formula of Drain Current of Low Noise Amplifier is expressed as Drain Current = (Transconductance*(Gate to Source Voltage-Threshold Voltage))/2. Here is an example- 11.715 = (2.18*(43-32))/2.

How to calculate Drain Current of Low Noise Amplifier?

With Transconductance (g_m), Gate to Source Voltage (V_gs) & Threshold Voltage (V_th) we can find Drain Current of Low Noise Amplifier using the formula - Drain Current = (Transconductance*(Gate to Source Voltage-Threshold Voltage))/2.

Can the Drain Current of Low Noise Amplifier be negative?

No, the Drain Current of Low Noise Amplifier, measured in Electric Current cannot be negative.

Which unit is used to measure Drain Current of Low Noise Amplifier?

Drain Current of Low Noise Amplifier 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 Low Noise Amplifier can be measured.

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Drain Current of Low Noise Amplifier Formula

Drain Current of Low Noise Amplifier Example

Drain Current of Low Noise Amplifier Solution

Drain Current of Low Noise Amplifier Formula Elements

Other formulas in RF Microelectronics category

How to Evaluate Drain Current of Low Noise Amplifier?

FAQs on Drain Current of Low Noise Amplifier

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