Output Voltage for Instrumentation Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Output Voltage = (Resistance 4/Resistance 3)*(1+(Resistance 2)/Resistance 1)*Differential Input Signal
Vo = (R4/R3)*(1+(R2)/R1)*Vid
This formula uses 6 Variables
Variables Used
Output Voltage - (Measured in Volt) - Output Voltage refers to the voltage at the output or load terminal.
Resistance 4 - (Measured in Ohm) - Resistance 4 is a measure of the opposition to current flow in an electrical circuit.
Resistance 3 - (Measured in Ohm) - Resistance 3 is a measure of the opposition to current flow in an electrical circuit.
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.
Differential Input Signal - (Measured in Volt) - Differential Input Signal is simply the difference between the two input signals V1 and V2.
STEP 1: Convert Input(s) to Base Unit
Resistance 4: 7 Kilohm --> 7000 Ohm (Check conversion ​here)
Resistance 3: 10.5 Kilohm --> 10500 Ohm (Check conversion ​here)
Resistance 2: 8.75 Kilohm --> 8750 Ohm (Check conversion ​here)
Resistance 1: 12.5 Kilohm --> 12500 Ohm (Check conversion ​here)
Differential Input Signal: 12 Volt --> 12 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vo = (R4/R3)*(1+(R2)/R1)*Vid --> (7000/10500)*(1+(8750)/12500)*12
Evaluating ... ...
Vo = 13.6
STEP 3: Convert Result to Output's Unit
13.6 Volt --> No Conversion Required
FINAL ANSWER
13.6 Volt <-- Output Voltage
(Calculation completed in 00.004 seconds)

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Jaipur Engineering College and Research Centre (JECRC), Jaipur
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Amplifier Characteristics Calculators

Base Junction Width of Amplifier
​ LaTeX ​ Go Base Junction Width = (Base Emitter Area*[Charge-e]*Electron Diffusivity*Thermal Equilibrium Concentration)/Saturation Current
Differential Voltage in Amplifier
​ LaTeX ​ Go Differential Input Signal = Output Voltage/((Resistance 4/Resistance 3)*(1+(Resistance 2)/Resistance 1))
Current Gain of Amplifier
​ LaTeX ​ Go Current Gain = Output Current/Input Current
Power Gain of Amplifier
​ LaTeX ​ Go Power Gain = Load Power/Input Power

Output Voltage for Instrumentation Amplifier Formula

​LaTeX ​Go
Output Voltage = (Resistance 4/Resistance 3)*(1+(Resistance 2)/Resistance 1)*Differential Input Signal
Vo = (R4/R3)*(1+(R2)/R1)*Vid

What is the Unit of output voltage and use of Instrumentation Amplifier?

The S.I. Unit of Output voltage for Instrumentation Amplifier is volt. Instrumentation amplifiers are mainly used to amplify very small differential signals from strain gauges, thermocouples or current sensing devices in motor control systems.

How to Calculate Output Voltage for Instrumentation Amplifier?

Output Voltage for Instrumentation Amplifier calculator uses Output Voltage = (Resistance 4/Resistance 3)*(1+(Resistance 2)/Resistance 1)*Differential Input Signal to calculate the Output Voltage, Output voltage for Instrumentation Amplifier is the output voltage signal which is gained across the resistances of the circuit. Output Voltage is denoted by Vo symbol.

How to calculate Output Voltage for Instrumentation Amplifier using this online calculator? To use this online calculator for Output Voltage for Instrumentation Amplifier, enter Resistance 4 (R4), Resistance 3 (R3), Resistance 2 (R2), Resistance 1 (R1) & Differential Input Signal (Vid) and hit the calculate button. Here is how the Output Voltage for Instrumentation Amplifier calculation can be explained with given input values -> 13.6 = (7000/10500)*(1+(8750)/12500)*12.

FAQ

What is Output Voltage for Instrumentation Amplifier?
Output voltage for Instrumentation Amplifier is the output voltage signal which is gained across the resistances of the circuit and is represented as Vo = (R4/R3)*(1+(R2)/R1)*Vid or Output Voltage = (Resistance 4/Resistance 3)*(1+(Resistance 2)/Resistance 1)*Differential Input Signal. Resistance 4 is a measure of the opposition to current flow in an electrical circuit, Resistance 3 is a measure of the opposition to current flow in an electrical circuit, 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 & Differential Input Signal is simply the difference between the two input signals V1 and V2.
How to calculate Output Voltage for Instrumentation Amplifier?
Output voltage for Instrumentation Amplifier is the output voltage signal which is gained across the resistances of the circuit is calculated using Output Voltage = (Resistance 4/Resistance 3)*(1+(Resistance 2)/Resistance 1)*Differential Input Signal. To calculate Output Voltage for Instrumentation Amplifier, you need Resistance 4 (R4), Resistance 3 (R3), Resistance 2 (R2), Resistance 1 (R1) & Differential Input Signal (Vid). With our tool, you need to enter the respective value for Resistance 4, Resistance 3, Resistance 2, Resistance 1 & Differential Input Signal and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Output Voltage?
In this formula, Output Voltage uses Resistance 4, Resistance 3, Resistance 2, Resistance 1 & Differential Input Signal. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Output Voltage = Voltage Gain*Input Voltage
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