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 1123 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. 806-5513
    Mfr. Part No.AD5791BRUZ
    €94.45
    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. 402-881
    Mfr. Part No.MCP4922-E/P
    BrandMicrochip
    €2.44
    Each (In a Pack of 2)
    units
    Resistor String 12 bit - 1%FSR ±12LSB 2 Through Hole PDIP 14 4.5µs Serial (SPI/Microwire) Unipolar External Single
    RS Stock No. 887-7316
    Mfr. Part No.MCP4725A0T-E/CH
    BrandMicrochip
    €0.617
    Each (On a Reel of 3000)
    units
    Resistor String 12 bit - ±2%FSR ±14.5LSB 1 Surface Mount SOT-23A 6 6µs Serial (I2C) Unipolar External Single
    RS Stock No. 876-7240
    Mfr. Part No.MCP4922-E/P
    BrandMicrochip
    €1.854
    Each (In a Tube of 30)
    units
    Resistor String 12 bit - - ±12LSB 2 Through Hole PDIP 14 4.5µs Serial (SPI/Microwire) Bipolar External Single
    RS Stock No. 669-6290
    Mfr. Part No.MCP4725A0T-E/CH
    BrandMicrochip
    €0.854
    Each (In a Pack of 5)
    units
    Resistor String 12 bit - ±2%FSR ±14.5LSB 1 Surface Mount SOT-23A 6 6µs Serial (I2C) Unipolar External Single
    RS Stock No. 496-8089
    Mfr. Part No.AD5337ARMZ
    €3.39
    Each
    units
    Resistor String 8 bit 14.8ksps ±1%FSR ±1LSB 2 Surface Mount MSOP 8 8µs Serial Unipolar External Single
    RS Stock No. 162-4260
    Mfr. Part No.PCM1744U
    €2.515
    Each (In a Tube of 50)
    units
    Delta Sigma 24 bit 96ksps ±10%FSR - 2 Surface Mount SOIC 14 - Serial Bipolar - Single
    RS Stock No. 461-9096
    Mfr. Part No.PCM1744U
    €2.57
    Each
    units
    Delta Sigma 24 bit 96ksps ±10%FSR - 2 Surface Mount SOIC 14 - Serial Bipolar - Single
    RS Stock No. 806-5503
    Mfr. Part No.AD5781ARUZ
    €29.90
    Each
    units
    R-2R, Resistor String 18 bit - ±5.25LSB ±4LSB 1 Surface Mount TSSOP 20 1µs Serial (SPI) Bipolar External, Internal Dual
    RS Stock No. 162-4166
    Mfr. Part No.DAC121C085CIMM/NOPB
    €1.055
    Each (On a Reel of 1000)
    units
    Resistor String 12 bit - -0.7%FSR ±8LSB 1 Surface Mount MSOP 8 8.5µs Serial (I2C) Unipolar External Single
    RS Stock No. 165-1973
    Mfr. Part No.MCP4728A0-E/UN
    BrandMicrochip
    €1.232
    Each (In a Tube of 100)
    units
    Resistor String 12 bit - - ±13LSB 4 Surface Mount MSOP 10 6µs Serial (I2C) Unipolar External, Internal Single
    RS Stock No. 538-8125
    Mfr. Part No.AD5551BRZ
    €14.61
    Each
    units
    R-2R, Resistor String 14 bit 1Msps 0.5LSB ±1LSB 1 Surface Mount SOIC 8 1µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 491-5625
    Mfr. Part No.CS4398-CZZ
    €8.95
    Each
    units
    Delta Sigma 24 bit 216ksps - - 2 Surface Mount TSSOP 28 - Serial Bipolar External, Internal Single
    RS Stock No. 823-7922
    Mfr. Part No.MCP4728A1-E/UN
    BrandMicrochip
    €1.662
    Each (In a Pack of 5)
    units
    Resistor String 12 bit - - 13LSB 4 Surface Mount MSOP 10 6µs Serial (I2C) Unipolar External, Internal Single
    RS Stock No. 823-1110
    Mfr. Part No.MCP4728A0-E/UN
    BrandMicrochip
    €1.696
    Each (In a Pack of 5)
    units
    Resistor String 12 bit - - ±13LSB 4 Surface Mount MSOP 10 6µs Serial (I2C) Unipolar External, Internal Single
    RS Stock No. 517-123
    Mfr. Part No.DAC121C085CIMM/NOPB
    €2.16
    Each
    units
    Resistor String 12 bit - -0.7%FSR ±8LSB 1 Surface Mount MSOP 8 8.5µs Serial (I2C) Unipolar External Single
    RS Stock No. 538-4173
    Mfr. Part No.PM7543FPZ
    €14.59
    Each
    units
    R-2R, Resistor String 12 bit - ±2LSB ±1LSB 1 Through Hole PDIP 16 - Serial - External Single
    RS Stock No. 146-0259
    Mfr. Part No.MCP4728A1-E/UN
    BrandMicrochip
    €1.221
    Each (In a Tube of 100)
    units
    Resistor String 12 bit - - 13LSB 4 Surface Mount MSOP 10 6µs Serial (I2C) Unipolar External, Internal Single
    RS Stock No. 169-8303
    Mfr. Part No.CS4398-CZZ
    €7.822
    Each (In a Tube of 50)
    units
    Delta Sigma 24 bit 216ksps - - 2 Surface Mount TSSOP 28 - Serial Bipolar External, Internal Single
    RS Stock No. 786-9859
    Mfr. Part No.LTC1660CGN#PBF
    €11.73
    Each
    units
    R-2R, Resistor String 10 bit - ±3LSB ±2.5LSB 8 Surface Mount SSOP 16 30µs Serial Unipolar Internal Single