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.

Applications

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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    Viewing 1 - 20 of 222 products
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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. 191-3212
    Mfr. Part No.MAX522CPA+
    £4.498
    Each (In a Tube of 50)
    Units
    R-2R 8 bit - - ±1LSB 2 Surface Mount DIP 8 70µs SPI Serial - External Single
    RS Stock No. 190-5084
    Mfr. Part No.MAX504CSD+
    £4.655
    Each (In a Pack of 2)
    Units
    R-2R 10 bit - - ±0.5LSB 1 Surface Mount SO 14 25µs SPI Serial Bipolar, Unipolar Internal Single
    RS Stock No. 190-4617
    Mfr. Part No.MAX504ESD+
    £5.439
    Each (In a Tube of 50)
    Units
    R-2R 10 bit - - ±0.5LSB 1 Surface Mount SO 14 25µs SPI Serial Bipolar, Unipolar Internal Single
    RS Stock No. 191-3213
    Mfr. Part No.MAX5250BCAP+
    £6.958
    Each (In a Tube of 66)
    Units
    R-2R 10 bit - - ±1LSB 4 Surface Mount SSOP 20 10µs SPI Serial Bipolar, Unipolar External Single
    RS Stock No. 190-4618
    Mfr. Part No.MAX5102AEUE+
    £3.587
    Each (In a Tube of 96)
    Units
    Resistor String 8 bit - - ±1LSB 2 Surface Mount TSSOP 16 6µs Parallel - External Single
    RS Stock No. 190-5087
    Mfr. Part No.MAX512CSD+
    £4.675
    Each (In a Pack of 2)
    Units
    R-2R 8 bit - - ±1LSB 3 Surface Mount SO 14 70µs Microwire, Parallel, QSPI, SPI Bipolar, Unipolar External Dual, Single
    RS Stock No. 190-4619
    Mfr. Part No.MAX5102BEUE+
    £2.705
    Each (In a Tube of 96)
    Units
    Resistor String 8 bit - - ±2LSB 2 Surface Mount TSSOP 16 6µs Parallel - External Single
    RS Stock No. 190-5114
    Mfr. Part No.MAX522ESA+
    £4.96
    Each (In a Pack of 2)
    Units
    R-2R 8 bit - - ±1LSB 2 Surface Mount SO 8 70µs SPI Serial - External Single
    RS Stock No. 189-9929
    Mfr. Part No.MAX686EEE+
    £4.535
    Each (In a Pack of 2)
    Units
    - 6 bit - - 1LSB - Surface Mount QSOP 16 - Serial (SPI) - Internal Single
    RS Stock No. 192-3008
    Mfr. Part No.MAX519ACPE+
    £6.19
    Each
    Units
    R-2R, Resistor String 8 bit - ±18mV - 2 Through Hole PDIP 16 6µs Serial (I2C) Unipolar External Single
    RS Stock No. 190-4620
    Mfr. Part No.MAX512CSD+
    £3.959
    Each (In a Tube of 50)
    Units
    R-2R 8 bit - - ±1LSB 3 Surface Mount SO 14 70µs Microwire, Parallel, QSPI, SPI Bipolar, Unipolar External Dual, Single
    RS Stock No. 191-4822
    Mfr. Part No.MAX5841LEUB+
    £6.165
    Each (In a Pack of 2)
    Units
    Resistor String 10 bit - - ±4LSB 4 Surface Mount μMAX 10 12µs Serial (2 Wire, I2C) - External Single
    RS Stock No. 190-4637
    Mfr. Part No.MAX531BESD+
    £8.408
    Each (In a Tube of 50)
    Units
    R-2R 12 bit - - ±1LSB 1 Surface Mount SO 14 25µs SPI Serial Bipolar, Unipolar Internal Single
    RS Stock No. 540-4047
    Mfr. Part No.MAX521ACWG+
    £10.65
    Each
    Units
    R-2R, Resistor String 8 bit - 18mV - 8 Surface Mount SOIC W 24 6µs Serial (I2C) Unipolar External Single
    RS Stock No. 190-5090
    Mfr. Part No.MAX504ESD+
    £6.32
    Each (In a Pack of 2)
    Units
    R-2R 10 bit - - ±0.5LSB 1 Surface Mount SO 14 25µs SPI Serial Bipolar, Unipolar Internal Single
    RS Stock No. 191-3980
    Mfr. Part No.MAX5135GTG+
    £4.665
    Each (In a Tube of 75)
    Units
    Resistor String 12 bit - - ±6LSB 4 Surface Mount TQFN-EP 24 5µs - Bipolar, Unipolar External, Internal Single
    RS Stock No. 190-5406
    Mfr. Part No.MAX5216GUA+
    £5.045
    Each (In a Pack of 2)
    Units
    String DAC 16 bit - - ±4LSB 1 Surface Mount μMAX 8 18µs SPI Serial Unipolar External Single
    RS Stock No. 189-9328
    Mfr. Part No.MAX543ACPA+
    £13.05
    Each
    Units
    R-2R, Resistor String 12 bit - ±2LSB ±0.5LSB 1 Through Hole PDIP 8 1µs Serial (SPI) - External Single
    RS Stock No. 192-1944
    Mfr. Part No.MX7226KN+
    £13.691
    Each (In a Tube of 18)
    Units
    R-2R, Resistor String 8 bit - ±1.5LSB ±1LSB 4 Through Hole PDIP 20 4µs Parallel Unipolar External Dual, Single
    RS Stock No. 190-4621
    Mfr. Part No.MAX5134AGUE+
    £6.076
    Each (In a Tube of 96)
    Units
    Resistor String 16 bit - - -8 → +10LSB 4 Surface Mount TSSOP 16 5µs SPI Serial Bipolar, Unipolar External, Internal Single