# digital-to-analog converter

> electronic device that converts a digital signal into an analog signal (mixed signal device), mostly realized as part of an integrated circuit (IC)

**Wikidata**: [Q210863](https://www.wikidata.org/wiki/Q210863)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Digital-to-analog_converter)  
**Source**: https://4ort.xyz/entity/digital-to-analog-converter

## Summary  
A digital-to-analog converter (DAC) is an electronic device that converts digital signals into analog signals. It is typically implemented as part of a mixed-signal integrated circuit and plays a critical role in systems such as sound cards, audio equipment, and telecommunications.

## Key Facts  
- Instance of: electronic circuit, integrated circuit  
- Opposite of: analog-to-digital converter  
- Aliases: DAC, Convertidor digital-analógico, Conversor digital analógico, 数模转换器  
- Subclass of: mixed-signal integrated circuit, audio electronics, digital audio  
- Part of: digital communication, sound recording process, sound card, video game console, landline telephone  
- Used by: audio electronics, control systems, automation, MP3 players, digital media players  
- Related classes: 572 series ICs (Soviet DAC/ADC), Yamaha YM3014B, 252 series ICs, 301 series ICs  
- Sitelink count: 44  

## FAQs  
### Q: What is a digital-to-analog converter used for?  
A: A DAC is used to convert digital data—such as audio files or digital sensor readings—into analog signals that can be processed by analog devices like speakers, amplifiers, or motors.  

### Q: Where is a digital-to-analog converter found?  
A: DACs are commonly found in sound cards, MP3 players, smartphones, HiFi audio systems, and various embedded systems requiring analog output.  

### Q: How does a digital-to-analog converter work?  
A: A DAC takes discrete digital values (binary numbers) and maps them to corresponding voltage levels to reconstruct a continuous analog signal. Common architectures include R-2R ladders and delta-sigma modulation.  

## Why It Matters  
The digital-to-analog converter bridges the gap between digital processing and the analog world, enabling digital devices to interact with physical systems. Without DACs, digital audio couldn't be played through speakers, digital controls couldn't drive analog actuators, and modern multimedia systems would be severely limited. As computing and communication technologies evolved, DACs became essential components in consumer electronics, industrial automation, and telecommunications infrastructure. Their integration into ICs allowed for miniaturization and cost reduction, making high-quality digital audio and precise control systems widely accessible.

## Notable For  
- Essential component in sound cards and audio playback systems  
- Integrated into mixed-signal ICs for compact and efficient design  
- Foundational in both consumer electronics and industrial applications  
- Supports key processes in digital communication and control systems  
- Available in specialized implementations like Soviet-era 572 and 301 series ICs  

## Body  

### Definition and Core Function  
A digital-to-analog converter (DAC) is an electronic device that transforms digital signals—typically binary representations—into continuous analog signals such as voltage or current. This function is crucial in applications where digital systems must interface with analog environments.

### Technical Implementation  
- **Integration**: Most DACs are implemented as part of mixed-signal integrated circuits (ICs).  
- **Architectures**: Common types include weighted resistor networks, R-2R ladders, and delta-sigma modulators.  
- **Examples of DAC ICs**:  
  - Yamaha YM3014B  
  - Soviet 572 series (ADC/DAC)  
  - 252 series (early hybrid DACs)  
  - 301 series (hybrid ICs, inception: 1972)  

### Applications  
DACs are integral to numerous systems including:  
- Sound cards  
- MP3 players and digital media devices  
- Video game consoles  
- Mobile phones  
- Landline and mobile telephony  
- Control systems and automation  

### Relationship to Analog-to-Digital Converter (ADC)  
While a DAC converts digital signals to analog, its functional inverse, the ADC, performs the reverse operation. Both are core elements in mixed-signal systems.

### Historical and Geographic Context  
- Soviet Union developed dedicated DAC-related IC series such as the 572 and 301 series.  
- The 301 series was introduced in 1972.  

### Visual and Educational Resources  
- Schematics and diagrams illustrate internal structure and signal flow.  
- Videos and images demonstrate use cases in soundcards and HiFi systems.  

### Standards and Identifiers  
- Lexical ID: DAC  
- Library of Congress Authority ID: sh85037984  
- YSO ID: 27763  
- Freebase ID: /m/0n1h7  
- Wikidata Title: Digital-to-analog converter  
- Commons Category: Digital-analogue converters

## References

1. Integrated Authority File
2. Freebase Data Dumps. 2013
3. YSO-Wikidata mapping project
4. National Library of Israel
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)