## Op-amp Circuits

Op-Amps or **Operational Amplifiers** are called as the workhorse of **Analog circuits**. There are many types of Op-Amp IC, but the most commonly used ones are the LM358 and LM741. Based on the circuit design, Op-Amps can be configured for many applications like Amplifiers, Comparators, Integrators, Differentiators, Summer, Voltage Follower etc.. The below list from Circuit Digest consists of a huge collection of **Op-amp Circuits** with neat circuit diagram and practical DIY hardware explanation enabling you to master the **operational amplifier basics**.

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**DIY Smart Electronic Candle using LDR**

Candles have been of great use since ages, it has been guiding humans during night even before Edison came up with the idea for...

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**4-20mA Current Loop Tester using Op-Amp as Voltage to Current Converter**

Sensors are an integral part of any measurement system as they help in converting the real world parameters into electronic...

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**RC Phase Shift Oscillator using Op-Amp**

A Phase Shift Oscillator is an electronic oscillator circuit which produces sine wave output. It can either be designed by...

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**Simple Curve Tracer Circuit: Tracing the Curve for Resistor, Diode and Transistor**

Most of electronics deals with Tracing Curves, be it the characteristic transfer curve for a feedback loop, a resistor’s...

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**Zero Crossing Detector Circuit**

A Zero Crossing Detector Circuit is a useful application of Op-amp as Comparator. It is used to track the changing in the sine...

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**Instrumentation Amplifier Circuit using Op-Amp**

Almost all types of sensors and transducers convert real world parameters like light, temperature, weight etc into voltage...

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**Sawtooth Waveform Generator Circuit**

In electronics, waveforms are mostly plotted against voltage and time. The frequency and amplitude of the signal can vary...

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**Differential Amplifier or Voltage Subtractor Circuit**

Op-Amps were originally developed for Analog mathematical calculations, since then today they have proved to be useful in many...

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**Peak Detector Circuit**

Peak Detector Circuit is used to find the peak amplitude in a rapidly changing waveform. Peak detectors are generally used in...

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**Simple Microphone to Speaker Amplifier Circuit**

You must have seen someone speaking on the MIC and the amplified voice coming from the speaker, how this is possible? Is there...

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