Digital to Analogue Converters

Digital to analogue converters (also known as DACs) are devices that convert digital signals (e.g. a fixed-point binary number) into an analogue output signal (e.g. a physical quantity, such as voltage or pressure) for other devices to recognise. DACs are mostly in the audio industry, where they are used to convert digital audio signal (binary code) into an analogue signal ready for the next device or headphone amplifier to pick up. The reverse operation (analogue to digital conversion) can be performed by an ADC (analogue to digital converter). We have a curated range of DACs featuring products from well-known brands within the industry, including Analog Devices, Maxim Integrated, Microchip, Texas Instruments, and more.

What does a digital to analogue converter do?

Audio digital to analogue converters capture high-quality digital audio and convert it into a direct line level output analogue signal. An example of this is when digitally-stored music, such as an mp3 track or a CD, is converted into an analogue signal in order to be played through speakers. Video digital to analogue converters operate on a much larger scale and are high-frequency, low- to medium-resolution type converters. They are used to convert digital video data into analogue video signals, especially when using older models of monitors or televisions.

Types of digital to analogue converters

  • R-2R Ladder DACs - These converters are binary converters that use repeating cascaded resistor values R and 2R. Using R-2R improves accuracy.
  • Switched Capacitors - Switched capacitors include a parallel capacitor network.
  • Switched Resistors - Contain a parallel resistor system in which resistors are enabled or bypassed depending on the digital signal.
  • Switched Current Source - Different current sources are chosen based on the digital signal being input.


Digital to analogue converters are widely used in applications across audio and video industries, including mobile phones, televisions, music players, and telephone calls.

Converters for audio applications include:

  • Digital music systems when played through speakers or headphones
  • PC sound cards
  • ,li>Telecommunications

Video digital to analogue converters have application uses in:

  • Mobile phones
  • TVs

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    Description Price Architecture Resolution Conversion Rate Full Scale Error Integral Nonlinearity Error Number of DAC Channels Mounting Type Package Type Pin Count Maximum Settling Time Digital Interface Type Output Polarity Voltage Reference Power Supply Type
    RS Stock No. 709-5901
    Mfr. Part No.AD5453YRMZ
    R-2R, Resistor String 14 bit 2.7Msps ±2.5LSB ±2LSB 1 Surface Mount MSOP 8 0.11µs Serial (SPI/QSPI/Microwire) - External Single
    RS Stock No. 709-1586
    Mfr. Part No.AD5662BRJZ-1REEL7
    Resistor String 16 bit 1.2Msps ±1.5%FSR ±16LSB 1 Surface Mount SOT-23 8 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 662-1656
    Mfr. Part No.DAC908E
    Segmented 8 bit 200Msps 10%FSR ±0.5LSB 1 Surface Mount TSSOP 28 0.03µs Parallel - External, Internal Single
    RS Stock No. 538-6674
    Mfr. Part No.AD5308ARUZ
    Resistor String 8 bit 167ksps ±1.25%FSR ±1LSB 8 Surface Mount TSSOP 16 8µs Serial (SPI/QSPI/Microwire) Unipolar External Single