Calculate Vout and Circuit Gain
Operational Amplifiers (Op-Amps) are the workhorses of modern analog electronics. They take a weak input voltage and multiply it, allowing engineers to amplify audio signals, process sensor data, and build complex analog computers. However, designing the feedback loop requires precise resistor calculations. Our Op-Amp Calculator handles the math for the two most common configurations: Inverting and Non-Inverting circuits.
The behavior of the Op-Amp depends entirely on where you apply the input signal and the feedback resistors (R1 and Rf). In a Non-Inverting Amplifier, the input signal is applied to the positive terminal. The voltage gain formula is Vout = Vin * (1 + (Rf / R1)), resulting in a positive, amplified output. In an Inverting Amplifier, the signal goes to the negative terminal, flipping its phase. The formula is Vout = -Vin * (Rf / R1). Just plug your component values into the tool above to instantly see your circuit's gain and expected output voltage!
AI-generated estimates. No guarantee of accuracy. We assume no liability for decisions based on these results. Independent verification is recommended.