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 1105 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. 709-4945
    Mfr. Part No.AD7849CNZ
    HK$335.98
    Each
    units
    R-2R, Resistor String 16 bit 143ksps ±16LSB ±8LSB 1 Through Hole PDIP 20 10µs Serial (SPI) Bipolar, Unipolar External Dual
    RS Stock No. 522-9896
    Mfr. Part No.AD7541AKNZ
    HK$229.48
    Each
    units
    R-2R, Resistor String 12 bit - ±5LSB ±0.5LSB 1 Through Hole PDIP 18 0.6µs Parallel - External Single
    RS Stock No. 522-8578
    Mfr. Part No.AD766JNZ
    HK$339.54
    Each
    units
    Current Steering 16 bit 390ksps ±2%FSR - 1 Through Hole PDIP 16 1.5µs Serial (SPI) Bipolar Internal Dual
    RS Stock No. 522-8590
    Mfr. Part No.AD7226KNZ
    HK$466.59
    Each
    units
    R-2R, Resistor String 8 bit 143ksps ±1.5LSB ±1LSB 4 Through Hole PDIP 20 20µs Parallel Unipolar External Dual, Single
    RS Stock No. 697-7445
    Mfr. Part No.AD9708ARUZ
    HK$75.27
    Each
    units
    Segmented 8 bit 125Msps ±10%FSR ±0.5LSB 1 Surface Mount TSSOP 28 0.035µs Parallel - External, Internal Single
    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. 523-0004
    Mfr. Part No.AD420ANZ-32
    HK$276.82
    Each
    units
    Delta Sigma 16 bit 400sps - ±0.012%FSR 1 Through Hole PDIP 24 3000µs Serial (SPI/Microwire) Unipolar External, Internal Single
    RS Stock No. 709-4790
    Mfr. Part No.AD5662BRMZ-1
    HK$66.71
    Each
    units
    Resistor String 16 bit 1.2Msps ±1.5%FSR ±16LSB 1 Surface Mount MSOP 8 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 522-8556
    Mfr. Part No.AD669ANZ
    HK$385.60
    Each
    units
    Current Steering 16 bit 167ksps ±0.15%FSR ±4LSB 1 Through Hole PDIP 28 13µs Parallel Bipolar, Unipolar External, Internal Dual
    RS Stock No. 145-9159
    Mfr. Part No.MCP48FVB01-E/UN
    BrandMicrochip
    HK$4.584
    Each (In a Tube of 100)
    units
    Resistor String 8 bit - 4.5LSB 0.5LSB 1 Surface Mount MSOP 10 7.8µs Serial (SPI) Bipolar Internal Single
    RS Stock No. 759-0834
    Mfr. Part No.AD5668BRUZ-3
    HK$226.33
    Each
    units
    Resistor String 16 bit 95ksps -1%FSR ±16LSB 8 Surface Mount TSSOP 16 7µs Serial (SPI) - Internal Single
    RS Stock No. 916-3670
    Mfr. Part No.MCP48FVB01-E/UN
    BrandMicrochip
    HK$6.384
    Each (In a Pack of 10)
    units
    Resistor String 8 bit - 4.5LSB 0.5LSB 1 Surface Mount MSOP 10 7.8µs Serial (SPI) Bipolar Internal Single
    RS Stock No. 806-5513
    Mfr. Part No.AD5791BRUZ
    HK$954.64
    Each
    units
    R-2R, Resistor String 20 bit - ±21LSB ±1LSB 1 Surface Mount TSSOP 20 1µs Serial (SPI) Bipolar External, Internal Dual
    RS Stock No. 522-8720
    Mfr. Part No.DAC8512FPZ
    HK$149.39
    Each
    units
    R-2R, Resistor String 12 bit 62.5ksps - ±2LSB 1 Through Hole PDIP 8 16µs Serial (SPI) Unipolar Internal Single
    RS Stock No. 523-6642
    Mfr. Part No.AD7628KNZ
    HK$83.20
    Each
    units
    R-2R, Resistor String 8 bit 2.9Msps ±3LSB ±0.5LSB 2 Through Hole PDIP 20 0.4µs Parallel - External 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. 158-1981
    Mfr. Part No.AD5662ARJZ-2REEL7
    HK$43.576
    Each (On a Reel of 3000)
    units
    Resistor String 16 bit 1.2Msps ±1.5%FSR ±32LSB 1 Surface Mount SOT-23 8 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 497-0149
    Mfr. Part No.AD1955ARSZ
    HK$133.42
    Each
    units
    Delta Sigma 24 bit 192ksps ±6%FSR - 2 Surface Mount SSOP 28 - Serial (SPI) Bipolar Internal Single
    RS Stock No. 786-3173
    Mfr. Part No.AD9106BCPZ
    HK$288.24
    Each
    units
    - 12 bit 180Msps 1%FSR ±0.5LSB 4 Surface Mount LFCSP 32 31.2ns Serial (SPI) Bipolar Internal Single
    RS Stock No. 709-1577
    Mfr. Part No.AD5662ARJZ-2REEL7
    HK$58.33
    Each
    units
    Resistor String 16 bit 1.2Msps ±1.5%FSR ±32LSB 1 Surface Mount SOT-23 8 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single