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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    Description Prix 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
    N° de stock RS 858-0778
    Référence fabricantLTC1451IS8#PBF
    9,99 €
    Each
    Unité
    R-2R 12 bit - - ±4LSB 1 Surface Mount SOIC 8 14µs Serial (SPI) Bipolar External, Internal Single
    N° de stock RS 709-5929
    Référence fabricantAD558JPZ
    17,74 €
    Each
    Unité
    R-2R, Resistor String 8 bit - ±2.5LSB ±0.5LSB 1 Surface Mount PLCC 20 3µs Parallel Unipolar Internal Single
    N° de stock RS 806-5406
    Référence fabricantAD5667RBCPZ-R2
    8,44 €
    Each
    Unité
    Resistor String 16 bit - ±1LSB ±1LSB 2 Surface Mount LFCSP WD 10 7µs Serial (I2C) Bipolar Internal Single
    N° de stock RS 545-7164
    Référence fabricantLTC1446CS8#PBF
    13,15 €
    Each
    Unité
    R-2R 12 bit - - 5LSB 2 Surface Mount SOIC 8 14µs Serial (SPI) Unipolar Internal Single
    N° de stock RS 523-0004
    Référence fabricantAD420ANZ-32
    27,39 €
    Each
    Unité
    Delta Sigma 16 bit 400sps - ±0.012%FSR 1 Through Hole PDIP 24 3000µs Serial (SPI/Microwire) Unipolar External, Internal Single
    N° de stock RS 887-7274
    Référence fabricantMCP4822-E/SN
    MarqueMicrochip
    1,92 €
    Each (In a Tube of 100)
    Unité
    Resistor String 12 bit - ±2%FSR ±12LSB 2 Surface Mount SOIC 8 4.5µs Serial (SPI/Microwire) Unipolar Internal Single
    N° de stock RS 894-9007
    Référence fabricantAD5671RBRUZ
    11,27 €
    Each
    Unité
    - 12 bit - ±0.14%FSR ±1LSB 8 Surface Mount TSSOP 20 8µs Serial (I2C) - Internal Single
    N° de stock RS 146-0174
    Référence fabricantMCP4922-E/ST
    MarqueMicrochip
    1,854 €
    Each (In a Tube of 96)
    Unité
    Resistor String 12 bit - 1%FSR 12LSB 2 Surface Mount TSSOP 14 4.5µs Serial (SPI) Unipolar External Single
    N° de stock RS 538-6983
    Référence fabricantAD5530BRUZ
    10,10 €
    Each
    Unité
    R-2R, Resistor String 12 bit 50ksps ±2LSB ±1LSB 1 Surface Mount TSSOP 16 20µs Serial (SPI/QSPI/Microwire) Bipolar External Dual
    N° de stock RS 523-8553
    Référence fabricantAD5322BRMZ
    9,08 €
    Each
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    Resistor String 12 bit 125ksps ±1%FSR ±8LSB 2 Surface Mount MSOP 10 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    N° de stock RS 697-7445
    Référence fabricantAD9708ARUZ
    6,77 €
    Each
    Unité
    Segmented 8 bit 125Msps ±10%FSR ±0.5LSB 1 Surface Mount TSSOP 28 0.035µs Parallel - External, Internal Single
    N° de stock RS 538-4381
    Référence fabricantAD421BNZ
    15,83 €
    Each
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    Delta Sigma 16 bit 125sps ±0.2%FSR ±0.01%FSR 1 Through Hole PDIP 16 8000µs Serial (SPI) - External, Internal Single
    N° de stock RS 460-613
    Référence fabricantDAC0808LCN/NOPB
    1,954 €
    Each (In a Pack of 5)
    Unité
    R-2R, Resistor String 8 bit - - ±0.19%FSR 1 Through Hole MDIP 16 0.15µs Parallel Unipolar External Dual
    N° de stock RS 738-6702
    Référence fabricantMCP4922-E/ST
    MarqueMicrochip
    2,42 €
    Each
    Unité
    Resistor String 12 bit - 1%FSR 12LSB 2 Surface Mount TSSOP 14 4.5µs Serial (SPI) Unipolar External Single
    N° de stock RS 662-1638
    Référence fabricantDAC8830ICD
    12,12 €
    Each
    Unité
    R-2R, Resistor String 16 bit 1Msps ±7LSB ±1LSB 1 Surface Mount SOIC 8 1µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    N° de stock RS 697-7953
    Référence fabricantDAC312HSZ
    10,09 €
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    R-2R, Resistor String 12 bit - - ±0.05%FSR 1 Surface Mount SOIC W 20 0.5µs Parallel Unipolar External Dual
    N° de stock RS 709-4945
    Référence fabricantAD7849CNZ
    31,26 €
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    R-2R, Resistor String 16 bit 143ksps ±16LSB ±8LSB 1 Through Hole PDIP 20 10µs Serial (SPI) Bipolar, Unipolar External Dual
    N° de stock RS 288-705
    Référence fabricantDAC7802KU
    16,16 €
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    R-2R, Resistor String 12 bit 1.25Msps ±3LSB ±1LSB 2 Surface Mount SOIC 24 0.8µs Parallel - External Single
    N° de stock RS 162-7099
    Référence fabricantTLC7524ID
    1,808 €
    Each (In a Tube of 40)
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    R-2R, Resistor String 8 bit 10Msps ±2.5LSB ±0.5LSB 1 Surface Mount SOIC 16 0.1µs Parallel - External Single
    N° de stock RS 411-918
    Référence fabricantLTC1665CGN#PBF
    6,25 €
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    - 8 bit - ±4LSB ±1LSB 8 Surface Mount SSOP 16 30µs Serial Bipolar External Single