Common Mode Input Signal of Operational Amplifier Calculator

✖Negative Terminal Voltage is the input voltage given to the negative terminal of the difference amplifier.ⓘ Negative Terminal Voltage [V_n]			+10% -10%
✖Positive Terminal Voltage is the input voltage given to the negative terminal of the difference amplifier.ⓘ Positive Terminal Voltage [V_p]			+10% -10%

✖Common Mode Input is the average of the two input signals, V_icm= 1/2* (v₁+v₂).ⓘ Common Mode Input Signal of Operational Amplifier [V_icm]

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Formula

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Common Mode Input Signal of Operational Amplifier

Formula

`"V"_{"icm"} = 1/2*("V"_{"n"}+"V"_{"p"})`

Example

`"3V"=1/2*("-3.75V"+"9.75V")`

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Common Mode Input Signal of Operational Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Common Mode Input = 1/2*(Negative Terminal Voltage+Positive Terminal Voltage)
V_icm = 1/2*(V_n+V_p)
This formula uses 3 Variables

Variables Used

Common Mode Input - (Measured in Volt) - Common Mode Input is the average of the two input signals, V_icm= 1/2* (v₁+v₂).
Negative Terminal Voltage - (Measured in Volt) - Negative Terminal Voltage is the input voltage given to the negative terminal of the difference amplifier.
Positive Terminal Voltage - (Measured in Volt) - Positive Terminal Voltage is the input voltage given to the negative terminal of the difference amplifier.

STEP 1: Convert Input(s) to Base Unit

Negative Terminal Voltage: -3.75 Volt --> -3.75 Volt No Conversion Required
Positive Terminal Voltage: 9.75 Volt --> 9.75 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_icm = 1/2*(V_n+V_p) --> 1/2*((-3.75)+9.75)

Evaluating ... ...

V_icm = 3

STEP 3: Convert Result to Output's Unit

3 Volt --> No Conversion Required

FINAL ANSWER

3 Volt <-- Common Mode Input

(Calculation completed in 00.004 seconds)

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Created by Prahalad Singh

Jaipur Engineering College and Research Centre (JECRC), Jaipur

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Birsa Institute of Technology (BIT), Sindri

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< 10+ Inverting & Non-Inverting Calculators

Percentage Gain Error of Non Inverting Amplifier

Go Percentage Gain Error = -((1+(Resistance of Secondary Winding in Primary/Resistance of Primary Winding in Secondary))/(Voltage Gain+1+(Resistance of Secondary Winding in Primary/Resistance of Primary Winding in Secondary)))*100

Output Voltage of Non Inverting Configuration

Go Output Voltage = Input Voltage+(Input Voltage/Resistance 1)*Resistance 2

Output Voltage of Finite Open-Loop Gain of Operational Amplifier

Go Output Voltage = (Current*Resistance-Input Voltage)*Open Loop Gain

Current in Finite Open-Loop Gain in Operational Amplifier

Go Current = (Input Voltage+Output Voltage/Open Loop Gain)/Resistance

Magnitude of Integrator Transfer Function

Go Magnitude of Opamp Transfer Function = 1/(Angular Frequency*Capacitance*Resistance)

Differential Input Signal

Go Differential Input Signal = Positive Terminal Voltage-(Negative Terminal Voltage)

Common Mode Input Signal of Operational Amplifier

Go Common Mode Input = 1/2*(Negative Terminal Voltage+Positive Terminal Voltage)

Closed Loop Gain of Non Inverting Amplifier Circuit

Go Closed Loop Gain = 1+(Feedback Resistance/Resistance)

Integrator Frequency of Inverting Amplifier

Go Integrator Frequency = 1/(Capacitance*Resistance)

Closed Loop Gain of Operational Amplifier

Go Closed Loop Gain = Output Voltage/Input Voltage

Common Mode Input Signal of Operational Amplifier Formula

Common Mode Input = 1/2*(Negative Terminal Voltage+Positive Terminal Voltage)
V_icm = 1/2*(V_n+V_p)

Input signals

The Input signals are represented by V ₁ and V ₂ in an operational amplifier. Common mode input signal is found by average of these signals.

How to Calculate Common Mode Input Signal of Operational Amplifier?

Common Mode Input Signal of Operational Amplifier calculator uses Common Mode Input = 1/2*(Negative Terminal Voltage+Positive Terminal Voltage) to calculate the Common Mode Input, The Common Mode Input Signal of Operational Amplifier V _icm is the average of the two input signals V₁ and V₂; namely, V_icm= 0.5*(voltage 1+voltage 2). Common Mode Input is denoted by V_icm symbol.

How to calculate Common Mode Input Signal of Operational Amplifier using this online calculator? To use this online calculator for Common Mode Input Signal of Operational Amplifier, enter Negative Terminal Voltage (V_n) & Positive Terminal Voltage (V_p) and hit the calculate button. Here is how the Common Mode Input Signal of Operational Amplifier calculation can be explained with given input values -> 3 = 1/2*((-3.75)+9.75).

FAQ

What is Common Mode Input Signal of Operational Amplifier?

The Common Mode Input Signal of Operational Amplifier V _icm is the average of the two input signals V₁ and V₂; namely, V_icm= 0.5*(voltage 1+voltage 2) and is represented as V_icm = 1/2*(V_n+V_p) or Common Mode Input = 1/2*(Negative Terminal Voltage+Positive Terminal Voltage). Negative Terminal Voltage is the input voltage given to the negative terminal of the difference amplifier & Positive Terminal Voltage is the input voltage given to the negative terminal of the difference amplifier.

How to calculate Common Mode Input Signal of Operational Amplifier?

The Common Mode Input Signal of Operational Amplifier V _icm is the average of the two input signals V₁ and V₂; namely, V_icm= 0.5*(voltage 1+voltage 2) is calculated using Common Mode Input = 1/2*(Negative Terminal Voltage+Positive Terminal Voltage). To calculate Common Mode Input Signal of Operational Amplifier, you need Negative Terminal Voltage (V_n) & Positive Terminal Voltage (V_p). With our tool, you need to enter the respective value for Negative Terminal Voltage & Positive Terminal Voltage and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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