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Responsivity Formula

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Responsivity refers to how a diode reacts to changes in an applied input signal, typically light or radiation in the case of photodiodes. Check FAQs

R = \frac{I p}{P o}

R - Responsivity?I_p - Photo Current?P_o - Incident Optical Power?

Responsivity Example

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With units

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Here is how the Responsivity equation looks like with Values.

Here is how the Responsivity equation looks like with Units.

Here is how the Responsivity equation looks like.

0.168 = \frac{430}{2.56}

0.168 = \frac{430mA}{2.56W}

0.168 = \frac{430}{2.56}

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Responsivity Solution

Follow our step by step solution on how to calculate Responsivity?

FIRST Step Consider the formula

R = \frac{I p}{P o}

Next Step Substitute values of Variables

∴

R = \frac{430mA}{2.56W}

Next Step Convert Units

∴

R = \frac{0.43A}{2.56W}

Next Step Prepare to Evaluate

∴

R = \frac{0.43}{2.56}

Next Step Evaluate

∴

R = 0.16796875

LAST Step Rounding Answer

∴

R = 0.168

Responsivity Formula Elements

Variables

Responsivity

Responsivity refers to how a diode reacts to changes in an applied input signal, typically light or radiation in the case of photodiodes.

Symbol: R

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Responsivity

Photo Current

Photo Current refers to the current generated in the PIN diode due to the light photons.

Symbol: I_p

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Photo Current

Incident Optical Power

Incident Optical Power is the total power of the light incident on the PIN diode.

Symbol: P_o

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Incident Optical Power

Other formulas in Diode Characteristics category

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V temp = \frac{T room}{11600}

Go Zener Current

I z = \frac{V i - V z}{R z}

Go Zener Voltage

V z = R z \cdot I z

Go Saturation Drain Current

I s = 0.5 \cdot g m \cdot (V gs - V th)

How to Evaluate Responsivity?

Responsivity evaluator uses Responsivity = Photo Current/Incident Optical Power to evaluate the Responsivity, Responsivity refers to how a diode reacts to changes in an applied input signal, typically light or radiation in the case of photodiodes. Responsivity is denoted by R symbol.

How to evaluate Responsivity using this online evaluator? To use this online evaluator for Responsivity, enter Photo Current (I_p) & Incident Optical Power (P_o) and hit the calculate button.

FAQs on Responsivity

What is the formula to find Responsivity?

The formula of Responsivity is expressed as Responsivity = Photo Current/Incident Optical Power. Here is an example- 0.167969 = 0.43/2.56.

How to calculate Responsivity?

With Photo Current (I_p) & Incident Optical Power (P_o) we can find Responsivity using the formula - Responsivity = Photo Current/Incident Optical Power.

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Responsivity Formula

Responsivity Example

Responsivity Solution

Responsivity Formula Elements

Other formulas in Diode Characteristics category

How to Evaluate Responsivity?

FAQs on Responsivity

Variable Name