That is why comparators are used in almost every analog-to-digital converter.

This operation is the same as a 1-bit quantization. In a converter, the output indicates which voltage is higher.

Analog-to-digital Converter (ADC): Comparators are used to create analog-to-digital converters.

Using a suitable pull-up voltage, the circuit allows for a lot of versatility in selecting the voltages to be interpreted.

Level Shifter: A level shifter can be designed using a single op-amp.

A comparator is typically a high-gain amplifier, and for controlled inputs, a comparator is suitable for detecting Null.

Null Detector: If a value is zero, a null detector detects it.

Some of the applications of the comparators are listed below. There are several applications of comparators. Comparator circuit usesĪ comparator is a valuable and essential device. A comparator is broadly utilized as the utilization of the relays. It can turn On or OFF a circuit and can connect and disconnect a circuit from another circuit. Relays are switches that can control a circuit. The below image represents a non-inverting voltage comparator’s circuit diagram using op amp 741.Ĭomparator Block Diagram Comparator circuit relay A voltage comparator can be created using op amp 741. Op-amp 741 is an integrated circuit containing an op amp. Voltage comparator circuit using op amp 741

If the inverting terminal’s voltage is higher than the voltage in the non-inverting terminal, the output is switched to the op-amp’s negative saturation voltage.If the voltage in the non-inverting terminal is higher than the inverting terminal voltage, the output is switched to the op-amp’s positive saturation voltage.Below mentioned two points state the working. In general, it compares between two voltage sources and provides a greater output. The working principle of the comparator is pretty simple. The indicative output is collected from the output of the op-amp. The positive and negative saturation voltage inputs are also provided.

A reference voltage and a voltage signal are provided through the op-amp. There is no feedback system incorporated with it. To make it ready for operation, input voltages are provided. The comparator circuit is designed using an op amp. Image By – Inductiveload, Op-Amp Comparator, marked as public domain, more details on Wikimedia Commons Comparator circuit design

Comparator relay circuit