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Output Resistance of Mosfet Formula

GoDrain Output Resistance Formula

GoOutput Resistance of Differential Amplifier Formula

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Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output. Check FAQs

R out = \frac{v a}{i c}

R_out - Output Resistance?v_a - Early Voltage?i_c - Collector Current?

Output Resistance of Mosfet Example

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Here is how the Output Resistance of Mosfet equation looks like with Values.

Here is how the Output Resistance of Mosfet equation looks like with Units.

Here is how the Output Resistance of Mosfet equation looks like.

0.0025 = \frac{4.78}{1.89}

0.0025kΩ = \frac{4.78V}{1.89A}

0.0025 = \frac{4.78}{1.89}

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Output Resistance of Mosfet Solution

Follow our step by step solution on how to calculate Output Resistance of Mosfet?

FIRST Step Consider the formula

R out = \frac{v a}{i c}

Next Step Substitute values of Variables

∴

R out = \frac{4.78V}{1.89A}

Next Step Prepare to Evaluate

∴

R out = \frac{4.78}{1.89}

Next Step Evaluate

∴

R out = 2.52910052910053Ω

Next Step Convert to Output's Unit

∴

R out = 0.00252910052910053kΩ

LAST Step Rounding Answer

∴

R out = 0.0025kΩ

Output Resistance of Mosfet Formula Elements

Variables

Output Resistance

Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.

Symbol: R_out

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Output Resistance

Early Voltage

The Early Voltage is a parameter that describes how the collector current changes with the collector-to-emitter voltage. It is a measure of the linearity of the output characteristic curve.

Symbol: v_a

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Early Voltage

Collector Current

The Collector Current s the current that flows through the collector terminal. It is the current that is controlled by the base current.

Symbol: i_c

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Collector Current

Other Formulas to find Output Resistance

Go Drain Output Resistance

R out = \frac{1}{λ \cdot i d}

Go Output Resistance of Differential Amplifier

R out = \frac{(V cin \cdot g m) - I t}{2 \cdot g m \cdot I t}

Go Output Resistance given Transconductance

R out = \frac{1}{η \cdot g m}

Go Output Resistance given Channel Length Modulation

R out = \frac{1}{λ c \cdot i d}

Other formulas in Resistance category

Go MOSFET as Linear Resistance given Aspect Ratio

R ds = \frac{L}{μ s \cdot C ox \cdot W c \cdot V eff}

Go Electron Mean Free Path

λ = \frac{1}{R out \cdot i d}

Go Finite Resistance between Drain and Source

R fi = mod \underset{̲}{u} s \frac{V a}{i d}

Go MOSFET as Linear Resistance

R ds = \frac{1}{G}

How to Evaluate Output Resistance of Mosfet?

Output Resistance of Mosfet evaluator uses Output Resistance = Early Voltage/Collector Current to evaluate the Output Resistance, The Output Resistance of Mosfet formula is defined as a measure of how much the drain current changes when the drain voltage changes. It is an important parameter to consider when designing MOSFET circuits, as it can affect the gain, bandwidth, and stability of the circuit. Output Resistance is denoted by R_out symbol.

How to evaluate Output Resistance of Mosfet using this online evaluator? To use this online evaluator for Output Resistance of Mosfet, enter Early Voltage (v_a) & Collector Current (i_c) and hit the calculate button.

FAQs on Output Resistance of Mosfet

What is the formula to find Output Resistance of Mosfet?

The formula of Output Resistance of Mosfet is expressed as Output Resistance = Early Voltage/Collector Current. Here is an example- 2.5E-6 = 4.78/1.89.

How to calculate Output Resistance of Mosfet?

With Early Voltage (v_a) & Collector Current (i_c) we can find Output Resistance of Mosfet using the formula - Output Resistance = Early Voltage/Collector Current.

What are the other ways to Calculate Output Resistance?

Here are the different ways to Calculate Output Resistance-

Output Resistance=1/(Electron Mean Free Path*Drain Current)
Output Resistance=((Common Mode Input Signal*Transconductance)-Total Current)/(2*Transconductance*Total Current)
Output Resistance=1/(Carrier Mobility*Transconductance)

Can the Output Resistance of Mosfet be negative?

No, the Output Resistance of Mosfet, measured in Electric Resistance cannot be negative.

Which unit is used to measure Output Resistance of Mosfet?

Output Resistance of Mosfet is usually measured using the Kilohm[kΩ] for Electric Resistance. Ohm[kΩ], Megohm[kΩ], Microhm[kΩ] are the few other units in which Output Resistance of Mosfet can be measured.

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Output Resistance of Mosfet Formula

​GoDrain Output Resistance Formula

​GoOutput Resistance of Differential Amplifier Formula

Output Resistance of Mosfet Example

Output Resistance of Mosfet Solution

Output Resistance of Mosfet Formula Elements

Other Formulas to find Output Resistance

Other formulas in Resistance category

How to Evaluate Output Resistance of Mosfet?

FAQs on Output Resistance of Mosfet

Variable Name

GoDrain Output Resistance Formula

GoOutput Resistance of Differential Amplifier Formula