🔊 Op‑Amp Gain Calculator

🛡️ 100% Client‑Side — Private
Inverting · Non‑Inverting · Differential — Standard Resistors & GBW
V
MHz
📊 Gain 10.00 V/V
Vout: 10.00 V
GBW Usage: 10% Bandwidth: 100 kHz
✅ Plenty of bandwidth
Rf (std): 10 kΩ
Rin (std): 1 kΩ
For better accuracy, use 1% resistors.
✓ Real‑time · E24/E12 standard resistors · GBW check

📘 Op‑Amp Gain Guide

Operational amplifiers amplify the difference between input voltages. The gain is set by external resistors. This calculator helps you design inverting, non‑inverting, and differential circuits with standard resistor values and gain‑bandwidth product checks.

❓ FAQ

What is gain‑bandwidth product (GBW)?

GBW is the product of gain and bandwidth. For a given GBW, bandwidth = GBW / Gain. Higher gain reduces available bandwidth.

Why use standard resistor values?

Standard E‑series resistors are readily available and cost‑effective. The calculator matches your theoretical values to the nearest E24/E12 value.

Inverting vs non‑inverting?

Inverting: Gain = –Rf/Rin, input impedance ≈ Rin. Non‑inverting: Gain = 1 + Rf/Rg, high input impedance.