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Reference Current of IC Amplifier Formula

GoReference Current of Wilson Current Mirror Formula

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A reference current is just a stable source of current that does not fluctuate over temperature, supply voltages or loads. Check FAQs

I ref = I o \cdot (\frac{WL}{WL 1})

I_ref - Reference Current?I_o - Output Current?WL - Aspect Ratio?WL₁ - Aspect Ratio 1?

Reference Current of IC Amplifier Example

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Here is how the Reference Current of IC Amplifier equation looks like with Values.

Here is how the Reference Current of IC Amplifier equation looks like with Units.

Here is how the Reference Current of IC Amplifier equation looks like.

7.5 = 5 \cdot (\frac{15}{10})

7.5mA = 5mA \cdot (\frac{15}{10})

7.5 = 5 \cdot (\frac{15}{10})

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Reference Current of IC Amplifier Solution

Follow our step by step solution on how to calculate Reference Current of IC Amplifier?

FIRST Step Consider the formula

I ref = I o \cdot (\frac{WL}{WL 1})

Next Step Substitute values of Variables

∴

I ref = 5mA \cdot (\frac{15}{10})

Next Step Convert Units

∴

I ref = 0.005A \cdot (\frac{15}{10})

Next Step Prepare to Evaluate

∴

I ref = 0.005 \cdot (\frac{15}{10})

Next Step Evaluate

∴

I ref = 0.0075A

LAST Step Convert to Output's Unit

∴

I ref = 7.5mA

Reference Current of IC Amplifier Formula Elements

Variables

Reference Current

A reference current is just a stable source of current that does not fluctuate over temperature, supply voltages or loads.

Symbol: I_ref

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Reference Current

Output Current

Output Current is the current the amplifier draws from the signal source.

Symbol: I_o

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Output Current

Aspect Ratio

Aspect Ratio is the ratio of the width of the channel to the length of the channel.

Symbol: WL

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Aspect Ratio

Aspect Ratio 1

Aspect ratio 1 is the ratio of the width of the channel to the length of the channel of a conductor 1 in the circuit.

Symbol: WL₁

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Aspect Ratio 1

Other Formulas to find Reference Current

Go Reference Current of Wilson Current Mirror

I ref = (1 + \frac{2}{β^{2}}) \cdot I o

Other formulas in IC Amplifiers category

Go Finite Output Resistance of IC Amplifier

R fo = \frac{ΔV o}{ΔI o}

Go Output Current

I out = I ref \cdot (\frac{I t2}{I t1})

Go Intrinsic Gain of IC Amplifier

G i = 2 \cdot \frac{V e}{V ov}

Go Output Current of Wilson Current Mirror

I o = I ref \cdot (\frac{1}{1 + (\frac{2}{β^{2}})})

How to Evaluate Reference Current of IC Amplifier?

Reference Current of IC Amplifier evaluator uses Reference Current = Output Current*(Aspect Ratio/Aspect Ratio 1) to evaluate the Reference Current, The Reference current of IC amplifier formula is defined as stable source of current that does not fluctuate over temperature, supply voltages, or loads. Reference Current is denoted by I_ref symbol.

How to evaluate Reference Current of IC Amplifier using this online evaluator? To use this online evaluator for Reference Current of IC Amplifier, enter Output Current (I_o), Aspect Ratio (WL) & Aspect Ratio 1 (WL₁) and hit the calculate button.

FAQs on Reference Current of IC Amplifier

What is the formula to find Reference Current of IC Amplifier?

The formula of Reference Current of IC Amplifier is expressed as Reference Current = Output Current*(Aspect Ratio/Aspect Ratio 1). Here is an example- 7500 = 0.005*(15/10).

How to calculate Reference Current of IC Amplifier?

With Output Current (I_o), Aspect Ratio (WL) & Aspect Ratio 1 (WL₁) we can find Reference Current of IC Amplifier using the formula - Reference Current = Output Current*(Aspect Ratio/Aspect Ratio 1).

What are the other ways to Calculate Reference Current?

Here are the different ways to Calculate Reference Current-

Reference Current=(1+2/Transistor Current Gain^2)*Output Current

Can the Reference Current of IC Amplifier be negative?

Yes, the Reference Current of IC Amplifier, measured in Electric Current can be negative.

Which unit is used to measure Reference Current of IC Amplifier?

Reference Current of IC Amplifier is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Reference Current of IC Amplifier can be measured.

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Reference Current of IC Amplifier Formula

​GoReference Current of Wilson Current Mirror Formula

Reference Current of IC Amplifier Example

Reference Current of IC Amplifier Solution

Reference Current of IC Amplifier Formula Elements

Other Formulas to find Reference Current

Other formulas in IC Amplifiers category

How to Evaluate Reference Current of IC Amplifier?

FAQs on Reference Current of IC Amplifier

Variable Name

GoReference Current of Wilson Current Mirror Formula