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 786-9780
    Référence fabricantLTC1257IS8#PBF
    10,71 €
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    Resistor String 12 bit - ±0.5LSB ±4LSB 1 Surface Mount SOIC 8 6µs Serial Unipolar Internal Single
    N° de stock RS 165-2207
    Référence fabricantMCP4725A1T-E/CH
    MarqueMicrochip
    0,617 €
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    Resistor String 12 bit - - ±14.5LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Bipolar External Single
    N° de stock RS 823-0767
    Référence fabricantMCP4725A1T-E/CH
    MarqueMicrochip
    0,853 €
    Each (In a Pack of 10)
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    Resistor String 12 bit - - ±14.5LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Bipolar External Single
    N° de stock RS 889-5531
    Référence fabricantMCP4921-E/P
    MarqueMicrochip
    1,388 €
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    Resistor String 12 bit - 1%FSR ±12LSB 1 Through Hole PDIP 8 4.5µs Serial (SPI/Microwire) Unipolar External Single
    N° de stock RS 545-6565
    Référence fabricantLTC1257CN8#PBF
    9,15 €
    Each
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    Resistor String 12 bit - ±2LSB ±3.5LSB 1 Through Hole PDIP 8 6µs Serial (SPI) Unipolar External, Internal Single
    N° de stock RS 738-6027
    Référence fabricantMCP4921-E/P
    MarqueMicrochip
    1,83 €
    Each (In a Pack of 2)
    Unité
    Resistor String 12 bit - 1%FSR ±12LSB 1 Through Hole PDIP 8 4.5µs Serial (SPI/Microwire) Unipolar External Single
    N° de stock RS 865-2218
    Référence fabricantAD5761RBRUZ
    9,96 €
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    R-2R 16 bit - ±13mV ±2LSB 1 Surface Mount TSSOP 16 12.5µs Parallel & Serial (LVDS/SPI) Bipolar, Unipolar External Single
    N° de stock RS 461-9096
    Référence fabricantPCM1744U
    2,56 €
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    Delta Sigma 24 bit 96ksps ±10%FSR - 2 Surface Mount SOIC 14 - Serial Bipolar - Single
    N° de stock RS 758-9752
    Référence fabricantAD7224LNZ
    19,60 €
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    R-2R, Resistor String 8 bit 143ksps ±3/2LSB ±1LSB 1 Through Hole PDIP 18 7µs Parallel Bipolar, Unipolar External Dual, Single
    N° de stock RS 894-9001
    Référence fabricantAD5672RBRUZ
    10,70 €
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    - 12 bit - ±0.14%FSR ±1LSB 8 Surface Mount TSSOP 20 8µs Serial - Internal Single
    N° de stock RS 162-4260
    Référence fabricantPCM1744U
    2,525 €
    Each (In a Tube of 50)
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    Delta Sigma 24 bit 96ksps ±10%FSR - 2 Surface Mount SOIC 14 - Serial Bipolar - Single
    N° de stock RS 522-9004
    Référence fabricantDAC08CPZ
    3,47 €
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    Current Steering 8 bit 11.8Msps ±1LSB ±0.39%FSR 1 Through Hole PDIP 16 0.15µs Parallel Unipolar External Dual
    N° de stock RS 165-4144
    Référence fabricantMCP47FEB21A0-E/ST
    MarqueMicrochip
    0,915 €
    Each (In a Tube of 100)
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    Resistor String 12 bit - 4.5LSB ±0.5LSB 1 Surface Mount TSSOP 8 6µs Serial (I2C) Bipolar External, Internal Single
    N° de stock RS 879-3261
    Référence fabricantMCP47FEB21A0-E/ST
    MarqueMicrochip
    1,27 €
    Each (In a Pack of 5)
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    Resistor String 12 bit - 4.5LSB ±0.5LSB 1 Surface Mount TSSOP 8 6µs Serial (I2C) Bipolar External, Internal Single
    N° de stock RS 522-8607
    Référence fabricantAD7528KNZ
    14,76 €
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    R-2R, Resistor String 8 bit 5.6Msps ±4LSB ±0.5LSB 2 Through Hole PDIP 20 0.4µs Parallel - External Single
    N° de stock RS 887-7423
    Référence fabricantMCP4728-E/UN
    MarqueMicrochip
    1,221 €
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    Resistor String 12 bit - - ±13LSB - Surface Mount MSOP 10 - Serial (I2C) - - Single
    N° de stock RS 651-2105
    Référence fabricantDAC084S085CIMM/NOPB
    0,76 €
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    Resistor String 8 bit - -0.75%FSR ±0.5LSB 4 Surface Mount MSOP 10 4.5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
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    Référence fabricantCS4398-CZZ
    MarqueCirrus Logic
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    Delta Sigma 24 bit 216ksps - - 2 Surface Mount TSSOP 28 - Serial Bipolar External, Internal Single
    N° de stock RS 889-5831
    Référence fabricantMCP4822-E/P
    MarqueMicrochip
    2,12 €
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    Resistor String 12 bit - ±2%FSR ±12LSB 2 Through Hole PDIP 8 4.5µs Serial (SPI/Microwire) Unipolar Internal Single