Input Offset Current of Differential Amplifier Calculator

✖Input Bias Current 1 is the average of input current in the operational amplifier. It is denoted as I_B1.ⓘ Input Bias Current 1 [I_B1]			+10% -10%
✖Input Bias Current 2 is the average of input current in the operational amplifier. It is denoted as I_B2.ⓘ Input Bias Current 2 [I_B2]			+10% -10%

✖Input offset current is the difference of input bias currents in the operational amplifier. It is denoted as Ios.ⓘ Input Offset Current of Differential Amplifier [I_os]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download BJT Differential Amplifiers Formulas PDF PDF Image

Input Offset Current of Differential Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2)
I_os = modulus(I_B1-I_B2)
This formula uses 1 Functions, 3 Variables

Functions Used

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

Variables Used

Input Offset Current - (Measured in Ampere) - Input offset current is the difference of input bias currents in the operational amplifier. It is denoted as Ios.
Input Bias Current 1 - (Measured in Ampere) - Input Bias Current 1 is the average of input current in the operational amplifier. It is denoted as I_B1.
Input Bias Current 2 - (Measured in Ampere) - Input Bias Current 2 is the average of input current in the operational amplifier. It is denoted as I_B2.

STEP 1: Convert Input(s) to Base Unit

Input Bias Current 1: 15 Milliampere --> 0.015 Ampere (Check conversion here)
Input Bias Current 2: 10 Milliampere --> 0.01 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_os = modulus(I_B1-I_B2) --> modulus(0.015-0.01)

Evaluating ... ...

I_os = 0.005

STEP 3: Convert Result to Output's Unit

0.005 Ampere -->5 Milliampere (Check conversion here)

FINAL ANSWER

5 Milliampere <-- Input Offset Current

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Electronics » Amplifiers » BJT Differential Amplifiers » DC Offset » Input Offset Current of Differential Amplifier

Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

Anshika Arya has verified this Calculator and 2500+ more calculators!

< DC Offset Calculators

Common Mode Rejection Ratio of BJT Differential Amplifier in dB

LaTeX Go Common Mode Rejection Ratio = 20*log10(modulus(Differential Gain/Common Mode Gain))

Input Offset Voltage of BJT Differential Amplifier

LaTeX Go Input Offset Voltage = Threshold Voltage*(Change in Collector Resistance/Collector Resistance)

Input Offset Current of Differential Amplifier

LaTeX Go Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2)

Common Mode Gain of BJT Differential Amplifier

LaTeX Go Common Mode Gain = Differential Output Voltage/Differential Input Voltage

Input Offset Current of Differential Amplifier Formula

LaTeX Go

Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2)
I_os = modulus(I_B1-I_B2)

What is the input offset current of an ideal op amp?

This causes the output to be zero at a non-zero value of differential input, called the input offset voltage. are around 1 to 10 mV for cheap commercial-grade op-amp integrated circuits (IC).

How to Calculate Input Offset Current of Differential Amplifier?

Input Offset Current of Differential Amplifier calculator uses Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2) to calculate 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 calculate Input Offset Current of Differential Amplifier using this online calculator? To use this online calculator 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. Here is how the Input Offset Current of Differential Amplifier calculation can be explained with given input values -> 5000 = modulus(0.015-0.01).

FAQ

What is Input Offset Current of Differential Amplifier?

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) and is represented as I_os = modulus(I_B1-I_B2) or Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2). Input Bias Current 1 is the average of input current in the operational amplifier. It is denoted as I_B1 & Input Bias Current 2 is the average of input current in the operational amplifier. It is denoted as I_B2.

How to calculate Input Offset Current of Differential Amplifier?

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) is calculated using Input Offset Current = modulus(Input Bias Current 1-Input Bias Current 2). To calculate Input Offset Current of Differential Amplifier, you need Input Bias Current 1 (I_B1) & Input Bias Current 2 (I_B2). With our tool, you need to enter the respective value for Input Bias Current 1 & Input Bias Current 2 and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search