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Transconductance of Low Noise Amplifier Formula

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

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

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

Transconductance of Low Noise Amplifier Example

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

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

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

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

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

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

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Transconductance of Low Noise Amplifier Solution

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

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

g m = \frac{2 \cdot 11.99A}{43V - 32V}

Next Step Prepare to Evaluate

∴

g m = \frac{2 \cdot 11.99}{43 - 32}

LAST Step Evaluate

∴

g m = 2.18S

Transconductance of Low Noise Amplifier Formula Elements

Variables

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

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

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 Transconductance of Low Noise Amplifier?

Transconductance of Low Noise Amplifier evaluator uses Transconductance = (2*Drain Current)/(Gate to Source Voltage-Threshold Voltage) to evaluate the Transconductance, The Transconductance of Low Noise Amplifier formula is defined as a crucial parameter for low-noise amplifiers (LNAs), as it determines the amplifier's ability to convert input voltage to output current. Transconductance is denoted by g_m symbol.

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

FAQs on Transconductance of Low Noise Amplifier

What is the formula to find Transconductance of Low Noise Amplifier?

The formula of Transconductance of Low Noise Amplifier is expressed as Transconductance = (2*Drain Current)/(Gate to Source Voltage-Threshold Voltage). Here is an example- 2.18 = (2*11.99)/(43-32).

How to calculate Transconductance of Low Noise Amplifier?

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

Can the Transconductance of Low Noise Amplifier be negative?

No, the Transconductance of Low Noise Amplifier, measured in Transconductance cannot be negative.

Which unit is used to measure Transconductance of Low Noise Amplifier?

Transconductance of Low Noise Amplifier is usually measured using the Siemens[S] for Transconductance. Millisiemens[S] are the few other units in which Transconductance of Low Noise Amplifier can be measured.

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Transconductance of Low Noise Amplifier Formula

Transconductance of Low Noise Amplifier Example

Transconductance of Low Noise Amplifier Solution

Transconductance of Low Noise Amplifier Formula Elements

Other formulas in RF Microelectronics category

How to Evaluate Transconductance of Low Noise Amplifier?

FAQs on Transconductance of Low Noise Amplifier

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