Operational Amplifiers Guide

Design and calculate analog circuits with op amps and comparators

Op Amp Tool – Design & Calculate Operational Amplifier Circuits

Your Ultimate Guide to Operational Amplifier Circuits and Calculations

Whether you're a student, hobbyist, or professional electronics engineer, Op Amp Tool provides everything you need to design, calculate, and simulate analog circuits using operational amplifiers (op-amps). The app includes over 50 calculators, circuit examples, and reference guides to help you build projects, study theory, or prototype analog systems.

Use it as a portable circuit design assistant—perfect for labs, fieldwork, or classroom learning.

Features & Circuit Categories:

Amplifiers:

• Non-inverting & inverting amplifiers

• Voltage repeaters

• Differential amplifiers (with & without T-bridge)

• AC voltage amplifiers

Active Filters:

• Low-pass & high-pass filters (inverting & non-inverting)

• Bandpass filter

• Gyrator-based designs

Integrators & Differentiators:

• Single & double integrators

• Voltage differentiators

• Advanced sum and difference configurations

Comparators:

• Standard comparators

• Limiters (with/without Zener diodes)

• RS trigger circuits

Attenuators:

• Inverting and non-inverting configurations

Converters:

• Voltage-to-current converters (inverting, non-inverting, and differential)

Adders & Subtractors:

• Inverting & non-inverting adders

• Addition-subtraction circuits

Logarithmic & Exponential Amplifiers:

• Diode and transistor-based logarithmic/exponential amplifiers

Reference Section:

• Pinouts and descriptions for popular operational amplifiers and comparators

The application is available in 11 languages: English, French, German, Indonesian, Italian, Polish, Portuguese, Russian, Spanish, Turkish, and Ukrainian.

New calculators and circuit examples are added with every update to ensure the app stays relevant and useful.

Design smarter analog circuits—get started with Op Amp Tool today!