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庫存編號 378-2143
    製造零件編號DAC902E
    HK$139.44
    單位
    Segmented 12 bit 200Msps ±10%FSR ±2.5LSB 1 Surface Mount TSSOP 28 0.03µs Parallel Unipolar External, Internal Single
    RS庫存編號 162-4167
    製造零件編號DAC7551IDRNT
    HK$20.796
    個 (在毎卷:250)
    單位
    Resistor String 12 bit 500ksps ±0.5%FSR ±1LSB 1 Surface Mount USON 12 5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS庫存編號 923-6927
    製造零件編號DAC7311IDCKT
    HK$17.346
    個 (在毎卷:250)
    單位
    Resistor String 12 bit - 0.2%FSR ±1LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS庫存編號 709-4576
    製造零件編號DAC7311IDCKT
    HK$27.10
    單位
    Resistor String 12 bit - 0.2%FSR ±1LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS庫存編號 389-316
    製造零件編號DAC7551IDRNT
    HK$35.76
    單位
    Resistor String 12 bit 500ksps ±0.5%FSR ±1LSB 1 Surface Mount USON 12 5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS庫存編號 662-1789
    製造零件編號TLC7225CDW
    HK$61.10
    單位
    R-2R, Resistor String 8 bit 143ksps ±2LSB ±1LSB 4 Surface Mount SOIC 24 7µs Parallel Bipolar, Unipolar External Dual, Single
    RS庫存編號 533-8776
    製造零件編號DAC0800LCN/NOPB
    HK$19.95
    單位
    Current Steering 8 bit - ±1LSB ±0.19%FSR 1 Through Hole MDIP 16 0.15µs Parallel Unipolar External Dual
    RS庫存編號 662-1864
    製造零件編號TLV5614CD
    HK$192.73
    單位
    Resistor String 12 bit 102ksps ±0.6%FSR ±4LSB 4 Surface Mount SOIC 16 20µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS庫存編號 620-0408
    製造零件編號TLC7226CDW
    HK$60.742
    /個 (每包:5個)
    單位
    R-2R, Resistor String 8 bit 143ksps ±2LSB ±1LSB 4 Surface Mount SOIC 20 20µs Parallel Bipolar, Unipolar External Dual, Single
    RS庫存編號 662-1795
    製造零件編號TLC7226IN
    HK$61.81
    單位
    R-2R, Resistor String 8 bit 143ksps ±2LSB ±1LSB 4 Through Hole PDIP 20 20µs Parallel Bipolar, Unipolar External Dual, Single
    RS庫存編號 162-6995
    製造零件編號DAC7811IDGS
    HK$51.907
    毎管:80 個
    單位
    R-2R, Resistor String 12 bit 5Msps ±10mV ±1LSB 1 Surface Mount MSOP 10 0.2µs Serial (SPI/QSPI/Microwire) - External Single
    RS庫存編號 923-3515
    製造零件編號DAC7714UB
    HK$253.602
    毎管:40 個
    單位
    R-2R, Resistor String 12 bit 89ksps ±2LSB ±1LSB 4 Surface Mount SOIC 16 10µs Serial Bipolar, Unipolar External Dual, Single
    RS庫存編號 197-7115
    製造零件編號DAC8552IDGKT
    HK$54.484
    個 (在毎卷:250)
    單位
    - 16 - - - 2 Surface Mount VSSOP 8 - - - - -
    RS庫存編號 162-8300
    製造零件編號PCM1780DBQ
    HK$16.086
    毎管:75 個
    單位
    Delta Sigma 24 bit 192ksps - - 8 Surface Mount SSOP 16 - Serial Bipolar - Single
    RS庫存編號 162-6137
    製造零件編號DAC5311IDCKT
    HK$9.618
    個 (在毎卷:250)
    單位
    Resistor String 8 bit - 0.2%FSR ±0.25LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS庫存編號 662-1489
    製造零件編號DAC8550IBDGKT
    HK$64.87
    單位
    Resistor String 16 bit 200ksps ±0.5%FSR ±8LSB 1 Surface Mount MSOP 8 10µs Serial (SPI/QSPI/Microwire) Unipolar External Single
    RS庫存編號 651-2098
    製造零件編號DAC101S101CIMM/NOPB
    HK$15.184
    /個 (每包:5個)
    單位
    Resistor String 10 bit - -1%FSR ±2.8LSB 1 Surface Mount MSOP 8 7.5µs Serial (SPI/QSPI/Microwire) Unipolar Supply Single
    RS庫存編號 162-8162
    製造零件編號DSD1794ADB
    HK$214.436
    毎管:47 個
    單位
    Delta Sigma 24 bit 192ksps ±6%FSR - 2 Surface Mount SOIC 28 - Serial (SPI) Bipolar Internal Single
    RS庫存編號 662-1811
    製造零件編號TLC7524ID
    HK$43.49
    單位
    R-2R, Resistor String 8 bit 10Msps ±2.5LSB ±0.5LSB 1 Surface Mount SOIC 16 0.1µs Parallel - External Single
    RS庫存編號 660-5178
    製造零件編號DAC7724UB
    HK$270.00
    單位
    R-2R, Resistor String 12 bit 100ksps ±2LSB ±1LSB 4 Surface Mount SOIC 28 10µs Parallel Bipolar, Unipolar External Dual, Single