analog-digital converter
Học thuậtThân thiện
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
- device for converting analogue signals into digital signals