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Analog-to-Digital Converter (ADC)

maker

An ADC is a device that converts analog signals into digital data.

expanded

An ADC measures discrete analog input signals and converts them into a digital equivalent, suitable for processing by digital systems. This conversion is essential in systems where data from real-world activities, such as temperature or pressure, must be digitized for use in electronic and computing technologies. Accurate AD conversion enables real-time monitoring and control in various applications, such as sensor data acquisition or sound recording.

examples

The ADS1115 ADC from Texas Instruments provides 16-bit resolution and operates at a data rate of up to 860 samples per second.

Used in embedded systems for converting sensor outputs into digital signals, allowing microcontrollers to process environmental data such as temperature and humidity in weather stations or home automation systems.

The MCP3008 ADC from Microchip offers 10-bit resolution and can sample at a rate of up to 200 kSps.

Commonly used in Raspberry Pi projects to read analog signals like joystick positions in custom game controllers or to measure light levels in DIY light sensor projects.

related terms

Digital-to-Analog Converter (DAC)
A digital-to-analog converter (DAC) is an electronic device that converts digital signals into analog signals.
Converter
A device that transforms electrical signals or power from one format to another.
Digital Multimeter (DMM)
An electronic measuring instrument that combines several measurement functions in one unit.
Logic analyzer
A logic analyzer is an electronic instrument used to capture and display multiple signals from a digital circuit or system.
Arduino
An open-source electronics platform based on easy-to-use hardware and software.