analog-to-digital converter

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analog-to-digital converter

An engineer connects an analog-to-digital converter to a sensor on a circuit board.

Definition

Noun: A hardware device that transforms a continuous analog signal (such as voltage, sound, or light) into a discrete digital signal represented by binary numbers (a series of 0s and 1s). This process, called analog-to-digital conversion, is fundamental for digital systems to process real-world information.

Usage

The term "analog-to-digital converter" is used to describe the specific component responsible for the conversion process. It is often abbreviated as ADC. * The microphone's signal is fed into an analog-to-digital converter before the computer can process it. * The quality of the recording depends heavily on the resolution of the analog-to-digital converter. * Modern oscilloscopes have a built-in high-speed analog-to-digital converter.

Advanced Usage
  • Specification Context: Often discussed in terms of its technical specifications, such as sampling rate (how often it reads the analog signal) and bit depth or resolution (the precision of each digital sample).
    • An audio interface with a 24-bit analog-to-digital converter provides a very detailed digital representation of the sound.
Variants and Related Words
  • ADC: The standard and most common abbreviation.
    • The microcontroller has a 10-bit ADC on chip.
  • A/D Converter: An alternative written form.
  • Digitizer: A broader term that can refer to a device or system performing analog-to-digital conversion, often for complex signals like video.
  • Analog-to-Digital Conversion (ADC): The name of the process itself.
    • Analog-to-digital conversion is the first step in digital signal processing.
Synonyms
  • Digitizer (in many technical contexts)
  • A/D Converter
Antonyms / Complementary Terms
  • Digital-to-Analog Converter (DAC or D/A Converter): A device that performs the reverse function, converting digital signals back into analog signals.
    • The DAC converts the digital music file back to an analog signal for the speakers.
analog-to-digital converter

An engineer connects an analog-to-digital converter to a sensor on a circuit board.

Noun
  1. device for converting analogue signals into digital signals