Digital-to-analog converter, also known as D/A converter, referred to as DAC, is a device that converts digital quantities into analog. The D/A converter is basically composed of 4 parts, namely the weight resistance network, operational amplifier, reference power supply and analog switch. Digital-to-analog converters are generally used in analog-to-digital converters. Analog-to-digital converters are A/D converters, or ADCs for short, which are devices that convert continuous analog signals into discrete digital signals.
A converter that converts a discrete signal in the form of a binary digital quantity into an analog quantity based on a standard quantity (or reference quantity), referd tore as a DAC or D/A converter.
The most common digital-to-analog converter is to convert parallel binary digital quantities into DC voltage or DC current. It is often used as an output channel of a process control computer system, connected to an actuator, to achieve automatic control of the production process. Digital-to-analog converter circuits are also used in the design of analog-to-digital converters using feedback techniques.
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