Definition

Noun: A device that converts continuous analog signals into discrete digital signals. This conversion process, called analog-to-digital conversion (ADC), is fundamental in digital electronics, allowing real-world physical quantities (like sound, light, or temperature) to be processed by computers and digital systems.

Usage and Examples

• The microphone's output is sent to an analog-digital converter before the computer can record the audio.
• Modern televisions have a built-in analog-digital converter to process incoming signals.
• The accuracy of the measurement depends heavily on the quality of the analog-digital converter.

Advanced Usage

• Technical Specifications: The performance of an analog-digital converter is often described by its sampling rate (how often it reads the analog signal) and its resolution (the precision of the digital output, often in bits like 8-bit, 16-bit).
  • Example: A high-fidelity audio interface uses a 24-bit analog-digital converter for superior sound quality.

Variants and Related Words

• ADC: The common acronym for analog-digital converter.
• Analog-to-digital converter: A synonymous full term.
• Digital-to-analog converter (DAC): A related device that performs the inverse function, converting digital signals back into analog signals.
• Digitizer: A broader term that can refer to a device or system (which includes an ADC) that converts analog information into digital form.

Synonyms

• ADC
• Analog-to-digital converter
• Digitizer (in specific contexts)

Related Technical Terms

• Sampling: The process of measuring the analog signal at discrete time intervals.
• Quantization: The process of mapping the sampled analog values to a finite set of digital values.
• Bit depth: A measure of the converter's resolution.

Noun

1. device for converting analogue signals into digital signals