Many function generators create square waves by applying a bipolar sine wave to a comparator’s input. When this input signal exceeds the comparator’s threshold voltage, the instrument’s output is V ...

If you have a cheap function generator it’s likely to contain a one-chip solution that generates approximations to sine and triangle waveforms through modifying a square wave with a set of filters.

Thats where this function generator sent to us by [Mohonri]comes in. Based around a ATTiny25 and a rail to rail op amp which is able to replicate frequencies from 1Hz to about 40KHz, in square ...

The traditional analog function generator with its customary triple-threat ensemble of square, triangle, and sine waveform outputs is a familiar tool on electronics lab benches. It’s also a classical ...

1. This very-low-frequency sine- and square-wave generator requires few components, but provides low-distortion outputs (derived from LTspice simulator).

If this is a problem, then the gains of IC2 and IC3 can be set to approximately 50 as described in the IC data sheet. The actual circuit of the generator is built with three LM386 ICs.