Differential Gain of Difference Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Differential Mode Gain = Resistance 2/Resistance 1
Ad = R2/R1
This formula uses 3 Variables
Variables Used
Differential Mode Gain - Differential mode gain is the gain of the amplifier when a differential input is supplied i.e. input 1 is not equal to input 2.
Resistance 2 - (Measured in Ohm) - Resistance 2 is a measure of the opposition to current flow in an electrical circuit.
Resistance 1 - (Measured in Ohm) - Resistance 1 is a measure of the opposition to current flow in an electrical circuit.
STEP 1: Convert Input(s) to Base Unit
Resistance 2: 8.75 Kilohm --> 8750 Ohm (Check conversion here)
Resistance 1: 12.5 Kilohm --> 12500 Ohm (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ad = R2/R1 --> 8750/12500
Evaluating ... ...
Ad = 0.7
STEP 3: Convert Result to Output's Unit
0.7 --> No Conversion Required
FINAL ANSWER
0.7 <-- Differential Mode Gain
(Calculation completed in 00.004 seconds)

Credits

Created by Devyaani Garg
Shiv Nadar University (SNU), Greater Noida
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Birsa Institute of Technology (BIT), Sindri
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8 Integrator & Difference Calculators

Common Mode Gain of Difference Amplifiers
Go Common Mode Gain = (Resistance 4/(Resistance 4+Resistance 3))*(1-((Resistance 2*Resistance 3)/(Resistance 1*Resistance 4)))
Output Voltage of Difference Amplifier
Go Output Voltage = (Resistance 2/Resistance 1)*(Positive Terminal Voltage-(Negative Terminal Voltage))
Output Voltage 1 of Difference Amplifier
Go Output Voltage 1 = -(Resistance 2/Resistance 1)*Negative Terminal Voltage
Output Voltage 2 of Difference Amplifier
Go Output Voltage 2 = (Resistance 2/Resistance 1)*Positive Terminal Voltage
Common Mode Rejection Ratio of Difference Amplifiers
Go CMRR = 20*log10((Differential Mode Gain)/(Common Mode Gain))
Differential Gain of Difference Amplifier
Go Differential Mode Gain = Resistance 2/Resistance 1
Integrator Frequency
Go Integrator Frequency = 1/(Resistance*Capacitance)
Gain of Feedback Operational Amplifier
Go Open Loop Gain = 1/Feedback Factor

Differential Gain of Difference Amplifier Formula

Differential Mode Gain = Resistance 2/Resistance 1
Ad = R2/R1

How can the differential gain be expressed in terms of voltage?

The differential gain of the difference amplifier can be expresses as follows : vo = Ad*(V1 - V2) where V1 and V2 are the input signal voltages. The Differential gain of a difference amplifier is defined as the gain obtained at the output signal with respect to the difference in the input signals applied.

How to Calculate Differential Gain of Difference Amplifier?

Differential Gain of Difference Amplifier calculator uses Differential Mode Gain = Resistance 2/Resistance 1 to calculate the Differential Mode Gain, The Differential Gain of Difference Amplifier formula is defined as the ratio of the resistance R2 and resistance R1 where the resistance have notations according to the general diagram of the difference amplifier. Differential Mode Gain is denoted by Ad symbol.

How to calculate Differential Gain of Difference Amplifier using this online calculator? To use this online calculator for Differential Gain of Difference Amplifier, enter Resistance 2 (R2) & Resistance 1 (R1) and hit the calculate button. Here is how the Differential Gain of Difference Amplifier calculation can be explained with given input values -> 0.7 = 8750/12500.

FAQ

What is Differential Gain of Difference Amplifier?
The Differential Gain of Difference Amplifier formula is defined as the ratio of the resistance R2 and resistance R1 where the resistance have notations according to the general diagram of the difference amplifier and is represented as Ad = R2/R1 or Differential Mode Gain = Resistance 2/Resistance 1. Resistance 2 is a measure of the opposition to current flow in an electrical circuit & Resistance 1 is a measure of the opposition to current flow in an electrical circuit.
How to calculate Differential Gain of Difference Amplifier?
The Differential Gain of Difference Amplifier formula is defined as the ratio of the resistance R2 and resistance R1 where the resistance have notations according to the general diagram of the difference amplifier is calculated using Differential Mode Gain = Resistance 2/Resistance 1. To calculate Differential Gain of Difference Amplifier, you need Resistance 2 (R2) & Resistance 1 (R1). With our tool, you need to enter the respective value for Resistance 2 & Resistance 1 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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