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 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. 162-4365
    Mfr. Part No.TLC5628CN
    MYR29.335
    Each (In a Tube of 25)
    units
    Resistor String 8 bit 45ksps ±60mV ±1LSB 8 Through Hole PDIP 16 10µs Serial (SPI) Unipolar External Single
    RS Stock No. 651-2105
    Mfr. Part No.DAC084S085CIMM/NOPB
    MYR13.618
    Each (In a Pack of 5)
    units
    Resistor String 8 bit - -0.75%FSR ±0.5LSB 4 Surface Mount MSOP 10 4.5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 121-8521
    Mfr. Part No.TLC7226CN
    MYR22.42
    Each (In a Tube of 20)
    units
    - - - - - - - - - - - - - -
    RS Stock No. 709-5973
    Mfr. Part No.AD5724AREZ
    MYR51.44
    Each
    units
    Resistor String 12 bit 100ksps 0.08%FSR ±1LSB 4 Surface Mount TSSOP 24 12µs Serial (SPI/QSPI/Microwire) Bipolar, Unipolar External Dual, Single
    RS Stock No. 709-9139
    Mfr. Part No.DAC8411IDCKT
    MYR24.60
    Each
    units
    Resistor String 16 bit - 0.2%FSR ±12LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS Stock No. 179-1778
    Mfr. Part No.TLV5624CD
    MYR26.692
    Each (In a Tube of 75)
    units
    Resistor String 8 bit 233ksps ±0.6%FSR ±0.5LSB 1 Surface Mount SOIC 8 7µs Serial (SPI/QSPI/Microwire) Unipolar External, Internal Single
    RS Stock No. 923-3524
    Mfr. Part No.DAC7625UB
    MYR92.82
    Each (In a Tube of 20)
    units
    R-2R, Resistor String 12 bit 100ksps ±8LSB ±1LSB 4 Surface Mount SOIC 28 10µs Parallel Bipolar, Unipolar External Dual, Single
    RS Stock No. 669-6304
    Mfr. Part No.MCP4822-E/SN
    BrandMicrochip
    MYR13.795
    Each (In a Pack of 2)
    units
    Resistor String 12 bit - ±2%FSR ±12LSB 2 Surface Mount SOIC 8 4.5µs Serial (SPI/Microwire) Unipolar Internal Single
    RS Stock No. 523-7229
    Mfr. Part No.AD5328BRUZ
    MYR88.72
    Each
    units
    Resistor String 12 bit 167ksps ±1.25%FSR ±12LSB 8 Surface Mount TSSOP 16 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS Stock No. 877-8717
    Mfr. Part No.AD5665RBRUZ-1
    MYR100.60
    Each
    units
    Resistor String 16 bit - ±0.5%FSR ±16LSB 4 Surface Mount TSSOP 14 7µs Serial Bipolar External Single
    RS Stock No. 742-2858
    Mfr. Part No.DAC8162SDSCT
    MYR51.09
    Each
    units
    Resistor String 14 bit - ±0.2%FSR 1LSB 2 Surface Mount SON 10 10µs Serial (SPI) Unipolar Internal Single
    New
    RS Stock No. 210-8589
    Mfr. Part No.AD5673RBCPZ-1
    MYR102.52
    Each
    units
    - 12 bit - - - 16 Surface Mount LFCSP 28 - Serial (I2C) - - -
    RS Stock No. 190-5090
    Mfr. Part No.MAX504ESD+
    MYR36.60
    Each (In a Pack of 2)
    units
    R-2R 10 bit - - ±0.5LSB 1 Surface Mount SO 14 25µs SPI Serial Bipolar, Unipolar Internal Single
    RS Stock No. 190-4648
    Mfr. Part No.MAX5742EUB+
    MYR57.306
    Each (In a Tube of 50)
    units
    Resistor String 12 bit - - ±16LSB 4 Surface Mount μMAX 10 10µs SPI Serial Bipolar, Unipolar External Single
    RS Stock No. 804-9703
    Mfr. Part No.AD9204BCPZ-20
    MYR45.28
    Each
    units
    Pipelined 10 bit 20Msps +1.8%FSR ±0.6LSB 2 Surface Mount LFCSP 64 - Serial (SPI) Unipolar Internal Single
    RS Stock No. 191-4834
    Mfr. Part No.MAX5886EGK+D
    MYR106.06
    Each
    units
    Current Steering 12 bit 500Msps - ±0.2LSB 1 Surface Mount QFN 68 11ns Parallel (LVDS) Unipolar External, Internal Single
    RS Stock No. 726-3918
    Mfr. Part No.MCP4801-E/MS
    BrandMicrochip
    MYR5.208
    Each (In a Pack of 5)
    units
    Resistor String 8 bit - ±2%FSR 1LSB 1 Surface Mount MSOP 8 4.5µs Serial (SPI) Bipolar Internal Single
    RS Stock No. 799-7608
    Mfr. Part No.MAX521BEWG+
    MYR43.52
    Each
    units
    R-2R 8 bit - 20mV ±1.5 LSB, ±2LSB 8 Surface Mount SOIC 24 6µs Serial Unipolar External Single
    RS Stock No. 759-0806
    Mfr. Part No.AD5648BRUZ-2
    MYR98.12
    Each
    units
    Resistor String 14 bit 95ksps -1%FSR ±4LSB 8 Surface Mount TSSOP 16 7µs Serial (SPI) - Internal Single
    RS Stock No. 922-2638
    Mfr. Part No.DAC8551IDGKT
    MYR22.516
    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