Enter the values of the feedback and input resistors into the calculator to determine the voltage gain of an operational amplifier (op amp) in a non-inverting configuration.
Op Amp Gain Formula
The following formula is used to calculate the voltage gain of an op-amp in a non-inverting configuration.
G = 1 + (Rf / Rin)
Variables:
- G is the voltage gain (V/V)
- Rf is the feedback resistor (Ω)
- Rin is the input resistor (Ω)
To calculate the voltage gain, add 1 to the ratio of the feedback resistor to the input resistor.
What is an Op Amp Gain?
An op amp gain refers to the amplification factor of an operational amplifier, which is a crucial component in analog electronic circuits. The gain determines how much the op amp will amplify the input signal. In a non-inverting amplifier configuration, the output voltage is in phase with the input voltage and is amplified by a factor determined by the resistors in the circuit.
How to Calculate Op Amp Gain?
The following steps outline how to calculate the Op Amp Gain.
- First, determine the value of the feedback resistor (Rf) in ohms (Ω).
- Next, determine the value of the input resistor (Rin) in ohms (Ω).
- Use the formula G = 1 + (Rf / Rin) to calculate the voltage gain.
- Finally, calculate the Op Amp Gain (G).
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
feedback resistor (Rf) = 10000 Ω (10 kΩ)
input resistor (Rin) = 1000 Ω (1 kΩ)
