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Input Offset Current of Differential Amplifier Formula

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Input offset current is the difference of input bias currents in the operational amplifier. It is denoted as Ios. Check FAQs

I os = mod \underset{̲}{u} s (I B1 - I B2)

I_os - Input Offset Current?I_B1 - Input Bias Current 1?I_B2 - Input Bias Current 2?

Input Offset Current of Differential Amplifier Example

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Here is how the Input Offset Current of Differential Amplifier equation looks like with Values.

Here is how the Input Offset Current of Differential Amplifier equation looks like with Units.

Here is how the Input Offset Current of Differential Amplifier equation looks like.

5 = mod \underset{̲}{u} s (15 - 10)

5mA = mod \underset{̲}{u} s (15mA - 10mA)

5 = mod \underset{̲}{u} s (15 - 10)

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Input Offset Current of Differential Amplifier Solution

Follow our step by step solution on how to calculate Input Offset Current of Differential Amplifier?

FIRST Step Consider the formula

I os = mod \underset{̲}{u} s (I B1 - I B2)

Next Step Substitute values of Variables

∴

I os = mod \underset{̲}{u} s (15mA - 10mA)

Next Step Convert Units

∴

I os = mod \underset{̲}{u} s (0.015A - 0.01A)

Next Step Prepare to Evaluate

∴

I os = mod \underset{̲}{u} s (0.015 - 0.01)

Next Step Evaluate

∴

I os = 0.005A

LAST Step Convert to Output's Unit

∴

I os = 5mA

Input Offset Current of Differential Amplifier Formula Elements

Variables

Functions

Input Offset Current

Input offset current is the difference of input bias currents in the operational amplifier. It is denoted as Ios.

Symbol: I_os

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Input Offset Current

Input Bias Current 1

Input Bias Current 1 is the average of input current in the operational amplifier. It is denoted as I_B1.

Symbol: I_B1

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Input Bias Current 1

Input Bias Current 2

Input Bias Current 2 is the average of input current in the operational amplifier. It is denoted as I_B2.

Symbol: I_B2

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Input Bias Current 2

modulus

Modulus of a number is the remainder when that number is divided by another number.

Syntax: modulus

Other formulas in DC Offset category

Go Common Mode Rejection Ratio of BJT Differential Amplifier in dB

CMRR = 20 \cdot \log 10 (mod \underset{̲}{u} s (\frac{A d}{A cm}))

Go Common Mode Gain of BJT Differential Amplifier

A cm = \frac{V od}{V id}

Go Input Offset Voltage of BJT Differential Amplifier

V os = V th \cdot (\frac{ΔR c}{R C})

How to Evaluate Input Offset Current of Differential Amplifier?

Input Offset Current of Differential Amplifier evaluator uses Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2) to evaluate the Input Offset Current, The Input offset current of differential amplifier formula is defined as the difference in the input current that flows in or out of each of the input pins, even if the output voltage of the operational amplifier is 0 V, due to the fact the pair characteristics (hFE,VBE) of the differential transistor do not match. This difference is known as the input offset current (IIO). Input Offset Current is denoted by I_os symbol.

How to evaluate Input Offset Current of Differential Amplifier using this online evaluator? To use this online evaluator for Input Offset Current of Differential Amplifier, enter Input Bias Current 1 (I_B1) & Input Bias Current 2 (I_B2) and hit the calculate button.

FAQs on Input Offset Current of Differential Amplifier

What is the formula to find Input Offset Current of Differential Amplifier?

The formula of Input Offset Current of Differential Amplifier is expressed as Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2). Here is an example- 5000 = modulus(0.015-0.01).

How to calculate Input Offset Current of Differential Amplifier?

With Input Bias Current 1 (I_B1) & Input Bias Current 2 (I_B2) we can find Input Offset Current of Differential Amplifier using the formula - Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2). This formula also uses Modulus (modulus) function(s).

Can the Input Offset Current of Differential Amplifier be negative?

No, the Input Offset Current of Differential Amplifier, measured in Electric Current cannot be negative.

Which unit is used to measure Input Offset Current of Differential Amplifier?

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

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Input Offset Current of Differential Amplifier Formula

Input Offset Current of Differential Amplifier Example

Input Offset Current of Differential Amplifier Solution

Input Offset Current of Differential Amplifier Formula Elements

Other formulas in DC Offset category

How to Evaluate Input Offset Current of Differential Amplifier?

FAQs on Input Offset Current of Differential Amplifier

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