Operational Amplifiers Guide

ALG Software Lab

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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 70 circuit examples, calculators, 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

Sine Wave generators:
• Op-Amp Oscillators
• Oscillator with Diode in the Feedback Path
• Twin-T Network Signal Generator

Square-wave pulse generators
• Op-Amp Square-Wave Generator
• Adjustable Square-Wave Generator
• Enhanced Square-Wave Generator
• Duty-Cycle Adjustment

Triangle-wave signal generators
• Nonlinear Triangle-Wave Generator
• Variable-Symmetry Sawtooth Generator
• Linear Triangle-Wave Generator
• Adjustable Linear Triangle-Wave Generator
• Variable-Symmetry Ramp Generator

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!

Neuerungen

Updated content and libraries. Added new themes and circuits:
• Sine Wave Generators,
• Square-wave pulse generators,
• Triangle-wave signal generators.