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 215 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. 378-2143
    Mfr. Part No.DAC902E
    HK$129.12
    Each
    units
    Segmented 12 bit 200Msps ±10%FSR ±2.5LSB 1 Surface Mount TSSOP 28 0.03µs Parallel Unipolar External, Internal Single
    RS Stock No. 709-4576
    Mfr. Part No.DAC7311IDCKT
    HK$25.52
    Each
    units
    Resistor String 12 bit - 0.2%FSR ±1LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS Stock No. 162-4167
    Mfr. Part No.DAC7551IDRNT
    HK$20.796
    Each (On a Reel of 250)
    units
    Resistor String 12 bit 500ksps ±0.5%FSR ±1LSB 1 Surface Mount USON 12 5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 923-6927
    Mfr. Part No.DAC7311IDCKT
    HK$16.216
    Each (On a Reel of 250)
    units
    Resistor String 12 bit - 0.2%FSR ±1LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS Stock No. 389-316
    Mfr. Part No.DAC7551IDRNT
    HK$33.14
    Each
    units
    Resistor String 12 bit 500ksps ±0.5%FSR ±1LSB 1 Surface Mount USON 12 5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 662-1710
    Mfr. Part No.PCM1755DBQ
    HK$30.32
    Each
    units
    Delta Sigma 24 bit 192ksps ±6%FSR ±0.5dB 2 Surface Mount SSOP 16 - Serial (SPI) Bipolar - Single
    RS Stock No. 620-0262
    Mfr. Part No.DAC7513E/250
    HK$46.80
    Each
    units
    Resistor String 12 bit 95ksps -1.25%FSR ±8LSB 1 Surface Mount MSOP 8 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 922-2638
    Mfr. Part No.DAC8551IDGKT
    HK$39.748
    Each (On a Reel of 250)
    units
    Resistor String 16 bit 200ksps ±0.5%FSR ±8LSB 1 Surface Mount MSOP 8 12µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 662-1606
    Mfr. Part No.DAC8555IPW
    HK$107.61
    Each
    units
    Resistor String 16 bit 200ksps ±0.5%FSR ±12LSB 4 Surface Mount TSSOP 16 12µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 922-2644
    Mfr. Part No.PCM4104PFBT
    HK$64.687
    Each (On a Reel of 250)
    units
    Delta Sigma 24 bit 216ksps 0.5%FSR - 4 Surface Mount TQFP 48 - Serial (SPI) Bipolar External Single
    RS Stock No. 813-6422
    Mfr. Part No.DAC7678SPW
    HK$97.83
    Each
    units
    Resistor String 12 bit - ±0.2%FSR 1LSB 8 Surface Mount TSSOP 16 12µs Serial Bipolar External, Internal Single
    RS Stock No. 651-2026
    Mfr. Part No.DAC124S085CIMM/NOPB
    HK$85.37
    Each (In a Pack of 5)
    units
    Resistor String 12 bit - -0.75%FSR ±8LSB 4 Surface Mount MSOP 10 8.5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 407-331
    Mfr. Part No.DAC088S085CIMT/NOPB
    HK$33.34
    Each
    units
    Resistor String 8 bit - -0.75%FSR ±0.5LSB 8 Surface Mount TSSOP 16 4.5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 660-5178
    Mfr. Part No.DAC7724UB
    HK$267.66
    Each
    units
    R-2R, Resistor String 12 bit 100ksps ±2LSB ±1LSB 4 Surface Mount SOIC 28 10µs Parallel Bipolar, Unipolar External Dual, Single
    RS Stock No. 814-3717
    Mfr. Part No.PCM1780DBQ
    HK$17.54
    Each (In a Pack of 5)
    units
    Delta Sigma 24 bit 192ksps - - 8 Surface Mount SSOP 16 - Serial Bipolar - Single
    RS Stock No. 620-0284
    Mfr. Part No.DAC8554IPW
    HK$121.93
    Each
    units
    Resistor String 16 bit 200ksps ±0.5%FSR ±12LSB 4 Surface Mount TSSOP 16 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 650-087
    Mfr. Part No.TLC7524CN
    HK$39.26
    Each
    units
    R-2R, Resistor String 8 bit 10Msps ±2.5LSB ±0.5LSB 1 Through Hole PDIP 16 0.1µs Parallel - External Single
    RS Stock No. 662-1713
    Mfr. Part No.PCM1781DBQ
    HK$24.15
    Each
    units
    Delta Sigma 24 bit 192ksps ±6%FSR - 2 Surface Mount SSOP 16 - Serial (SPI) Bipolar - Single
    RS Stock No. 162-7121
    Mfr. Part No.TLV5619IPW
    HK$96.418
    Each (In a Tube of 70)
    units
    Resistor String 12 bit 1Msps ±0.5%FSR ±4LSB 1 Surface Mount TSSOP 20 3µs Parallel Unipolar External Single
    RS Stock No. 662-1956
    Mfr. Part No.TLV5627IPW
    HK$61.35
    Each
    units
    Resistor String 8 bit 107ksps ±0.6%FSR ±0.5LSB 4 Surface Mount TSSOP 16 18µs Serial (SPI/QSPI/Microwire) Unipolar External Single