Sine To Square Wave Converter

About this circuit

Created by GGoodwin on Multisim Live (https://www.multisim.com/content/b5SqjuveR2n2Pvgu93MMaV/sine-to-square-wave-converter/), where it earned 65,000+ views and 388 copies over nine years. GGoodwin published more than 1,100 circuits on Multisim Live — one of the platform's foundational contributors. Archived ahead of the September 15, 2026 shutdown. Original author: to claim, update, or remove this circuit, contact circuitsim.com/contact. Sine to Square Wave Converter Using an Analog Comparator. This circuit is intended for single-supply comparators. When using a comparator powered from a bipolar supply, a sine wave can be converted to square wave by simply using a zero crossing detector. For single-supply operation, a voltage divider biases the reference input and the sinusoidal input signal which has a negative and positive peak of -5 V and +5 V respectively is first converted to 0 V to 5 V sinusoid before feeding to the comparator.