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Negative Voltage Gain of Cascode Amplifier Formula

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Negative Voltage Gain refers to the situation where the output voltage of a circuit is lower than the input voltage. Check FAQs

A vn = - (g mp \cdot R dg)

A_vn - Negative Voltage Gain?g_mp - MOSFET Primary Transconductance?R_dg - Resistance between Drain and Ground?

Negative Voltage Gain of Cascode Amplifier Example

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Here is how the Negative Voltage Gain of Cascode Amplifier equation looks like with Values.

Here is how the Negative Voltage Gain of Cascode Amplifier equation looks like with Units.

Here is how the Negative Voltage Gain of Cascode Amplifier equation looks like.

-4.7448 = - (19.77 \cdot 0.24)

-4.7448 = - (19.77mS \cdot 0.24kΩ)

-4.7448 = - (19.77 \cdot 0.24)

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Negative Voltage Gain of Cascode Amplifier Solution

Follow our step by step solution on how to calculate Negative Voltage Gain of Cascode Amplifier?

FIRST Step Consider the formula

A vn = - (g mp \cdot R dg)

Next Step Substitute values of Variables

∴

A vn = - (19.77mS \cdot 0.24kΩ)

Next Step Convert Units

∴

A vn = - (0.0198S \cdot 240Ω)

Next Step Prepare to Evaluate

∴

A vn = - (0.0198 \cdot 240)

LAST Step Evaluate

∴

A vn = -4.7448

Negative Voltage Gain of Cascode Amplifier Formula Elements

Variables

Negative Voltage Gain

Negative Voltage Gain refers to the situation where the output voltage of a circuit is lower than the input voltage.

Symbol: A_vn

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Negative Voltage Gain

MOSFET Primary Transconductance

MOSFET Primary Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.

Symbol: g_mp

Measurement: TransconductanceUnit: mS

Note: Value should be greater than 0.

Formulas to find MOSFET Primary Transconductance

Resistance between Drain and Ground

Resistance between Drain and Ground is the resistance that is from drain terminal of first transistor and ground .

Symbol: R_dg

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Resistance between Drain and Ground

Other formulas in Cascode Ampifier category

Go Drain Resistance of Cascode Amplifier

R d = (\frac{A vo}{{g mp}^{2} \cdot R out})

Go Equivalent Resistance of Cascode Amplifier

R dg = {(\frac{1}{R out1} + \frac{1}{R in})}^{- 1}

Go Open Circuit Bipolar Cascode Voltage Gain

A fo = - g mp \cdot (g ms \cdot R out) \cdot {(\frac{1}{R out1} + \frac{1}{R sm})}^{- 1}

Go Output voltage gain of MOS Cascode Amplifier

A vo = - {g mp}^{2} \cdot R out \cdot R d

How to Evaluate Negative Voltage Gain of Cascode Amplifier?

Negative Voltage Gain of Cascode Amplifier evaluator uses Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground) to evaluate the Negative Voltage Gain, The Negative Voltage gain of cascode amplifier formula is defined as a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal. Negative Voltage Gain is denoted by A_vn symbol.

How to evaluate Negative Voltage Gain of Cascode Amplifier using this online evaluator? To use this online evaluator for Negative Voltage Gain of Cascode Amplifier, enter MOSFET Primary Transconductance (g_mp) & Resistance between Drain and Ground (R_dg) and hit the calculate button.

FAQs on Negative Voltage Gain of Cascode Amplifier

What is the formula to find Negative Voltage Gain of Cascode Amplifier?

The formula of Negative Voltage Gain of Cascode Amplifier is expressed as Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground). Here is an example- -4.74456 = -(0.01977*240).

How to calculate Negative Voltage Gain of Cascode Amplifier?

With MOSFET Primary Transconductance (g_mp) & Resistance between Drain and Ground (R_dg) we can find Negative Voltage Gain of Cascode Amplifier using the formula - Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground).

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