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 - 17 of 17 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. 169-0513
    Mfr. Part No.BU9480F-E2
    BrandROHM
    £1.563
    Each (On a Reel of 2500)
    Units
    Resistor String 16 bit 200ksps - - 2 Surface Mount SOP 8 0.06µs Serial Bipolar External Single
    RS Stock No. 700-3501
    Mfr. Part No.BU9480F-E2
    BrandROHM
    £3.13
    Each
    Units
    Resistor String 16 bit 200ksps - - 2 Surface Mount SOP 8 0.06µs Serial Bipolar External Single
    RS Stock No. 700-3485
    Mfr. Part No.BU2506FV-E2
    BrandROHM
    £3.61
    Each
    Units
    R-2R, Resistor String 10 bit - ±25mV ±3.5LSB 8 Surface Mount SSOP 20 20µs Serial (SPI) Unipolar External Single
    RS Stock No. 169-0511
    Mfr. Part No.BU2506FV-E2
    BrandROHM
    £1.805
    Each (On a Reel of 2500)
    Units
    R-2R, Resistor String 10 bit - ±25mV ±3.5LSB 8 Surface Mount SSOP 20 20µs Serial (SPI) Unipolar External Single
    RS Stock No. 131-2760
    Mfr. Part No.BU2505FV-E2
    BrandROHM
    £5.08
    Each (In a Pack of 5)
    Units
    R-2R 10 bit - ±25mV ±3.5LSB 10 Surface Mount SSOP-B 20 20µs Serial - External Single
    RS Stock No. 124-6508
    Mfr. Part No.BH2220FVM-TR
    BrandROHM
    £2.194
    Each (In a Pack of 5)
    Units
    R-2R 8 bit - - ±1.5LSB 3 Surface Mount MSOP 8 100µs Serial Unipolar External Single
    RS Stock No. 128-8896
    Mfr. Part No.BH2227FV-E2
    BrandROHM
    £2.496
    Each (In a Pack of 5)
    Units
    R-2R 8 bit - - ±1.5LSB 4 Surface Mount SSOP-B 14 100µs Serial - External Single
    RS Stock No. 185-1362
    Mfr. Part No.BU2508FV-E2
    BrandROHM
    £4.012
    Each (In a Pack of 5)
    Units
    - 10 bit - ±25mV ±3.5LSB 4 Surface Mount SSOP 14 20µs - - - Single
    RS Stock No. 700-3488
    Mfr. Part No.BU2500FV-E2
    BrandROHM
    £3.84
    Each
    Units
    R-2R, Resistor String 8 bit - ±2LSB ±1.5LSB 12 Surface Mount SSOP 20 250µs Serial (SPI) Unipolar Supply Single
    RS Stock No. 178-0585
    Mfr. Part No.BH2226FV-E2
    BrandROHM
    £2.99
    Each (In a Pack of 2)
    Units
    R-2R 8 bit - 1 (Differential) LSB, 1.5 (Integral) LSB 1.5LSB 8 Surface Mount SSOP-B 16 100µs - - Internal Single
    RS Stock No. 178-0571
    Mfr. Part No.BH2221FV-E2
    BrandROHM
    £3.178
    Each (In a Pack of 5)
    Units
    R-2R 8 bit - 1 (Differential) LSB, 1.5 (Integral) LSB 1.5LSB 12 Surface Mount SSOP-B 20 100µs - - Internal Single
    RS Stock No. 185-1358
    Mfr. Part No.BU22210MUV-E2
    BrandROHM
    £2.965
    Each (In a Pack of 2)
    Units
    - 10 bit - - ±2LSB 10 Surface Mount VQFN 16 - - - - Single
    RS Stock No. 169-0512
    Mfr. Part No.BU2500FV-E2
    BrandROHM
    £1.92
    Each (On a Reel of 2500)
    Units
    R-2R, Resistor String 8 bit - ±2LSB ±1.5LSB 12 Surface Mount SSOP 20 250µs Serial (SPI) Unipolar Supply Single
    RS Stock No. 169-9346
    Mfr. Part No.BH2228FV-E2
    BrandROHM
    £2.82
    Each (In a Pack of 2)
    Units
    R-2R 8 bit - - ±1.5LSB 6 Surface Mount SSOP 14 100µs Serial (3 Wire) Unipolar External Single
    RS Stock No. 169-9341
    Mfr. Part No.BH2226F-E2
    BrandROHM
    £1.484
    Each (In a Pack of 5)
    Units
    R-2R 8 bit - - ±1.5LSB 8 Surface Mount SSOP 16 100µs Serial (3 Wire) Unipolar External Single
    RS Stock No. 178-1174
    Mfr. Part No.BU2507FV-E2
    BrandROHM
    £3.586
    Each (In a Pack of 5)
    Units
    R-2R 10 bit - 1 (Differential) LSB, 3.5 (Integral) LSB 3.5LSB 6 Surface Mount SSOP-B 14 20µs - - Internal Single
    RS Stock No. 169-9337
    Mfr. Part No.BH2223FV-E2
    BrandROHM
    £3.94
    Each (In a Pack of 2)
    Units
    R-2R 8 bit - - ±1.5LSB 10 Surface Mount SSOP 16 100µs Serial (3 Wire) Unipolar External Single