Inverting Op-Amp Resistor Calculator

Inverting Op-Amp Resistor Calculator

For an inverting op-amp, the output voltage is given by:
\[ V_{out} = -\left(\frac{R_f}{R_{in}}\right)V_{in} \]

To achieve a desired gain magnitude \(|A_v|\), use:
\[ |A_v| = \frac{R_f}{R_{in}} \quad \Rightarrow \quad R_f = |A_v| \times R_{in} \]

* Enter the desired gain (magnitude) and the value of \(R_{in}\) (in ohms).

Step 1: Enter Parameters

Example: 10 (for a gain of -10)

Example: 1000 Ω (1 kΩ)

Formula: \( R_f = |A_v| \times R_{in} \)