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 814-3732
    製造零件編號PCM5122PW
    TWD254.00
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    Delta Sigma 32 bit 384ksps - - 2 Surface Mount TSSOP 28 - Serial (SPI) Bipolar Internal Single
    RS庫存編號 162-8303
    製造零件編號PCM5122PW
    TWD233.70
    毎管:50 個
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    Delta Sigma 32 bit 384ksps - - 2 Surface Mount TSSOP 28 - Serial (SPI) Bipolar Internal Single
    RS庫存編號 879-3246
    製造零件編號MCP47FEB12A0-E/ST
    BrandMicrochip
    TWD70.80
    /個 (每包:5個)
    單位
    Resistor String 10 bit - 4.5LSB ±0.5LSB 2 Surface Mount TSSOP 8 6µs Serial (I2C) Bipolar External, Internal Single
    RS庫存編號 146-0302
    製造零件編號MCP47FEB12A0-E/ST
    BrandMicrochip
    TWD56.00
    毎管:100 個
    單位
    Resistor String 10 bit - 4.5LSB ±0.5LSB 2 Surface Mount TSSOP 8 6µs Serial (I2C) Bipolar External, Internal Single
    RS庫存編號 647-9929
    製造零件編號DAC0808LCM/NOPB
    TWD102.60
    /個 (每包:5個)
    單位
    R-2R, Resistor String 8 bit - - ±0.19%FSR 1 Surface Mount SOIC 16 0.15µs Parallel Unipolar External Dual
    RS庫存編號 660-5112
    製造零件編號DAC712U
    TWD1,480.00
    單位
    R-2R, Resistor String 16 bit 100ksps ±0.2%FSR ±8LSB 1 Surface Mount SOIC 28 6µs Parallel Bipolar Internal Dual
    RS庫存編號 145-0836
    製造零件編號TLC5620CD
    TWD186.00
    毎管:50 個
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    Resistor String 8 bit 48ksps ±60mV ±1LSB 4 Surface Mount SOIC 14 10µs Serial (SPI) Unipolar External Single
    RS庫存編號 121-9037
    製造零件編號DAC712U
    TWD1,365.00
    毎管:20 個
    單位
    R-2R, Resistor String 16 bit 100ksps ±0.2%FSR ±8LSB 1 Surface Mount SOIC 28 6µs Parallel Bipolar Internal Dual
    RS庫存編號 402-910
    製造零件編號MCP4922-E/SL
    BrandMicrochip
    TWD106.00
    /個 (每包:2個)
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    Resistor String 12 bit - 1%FSR ±12LSB 2 Surface Mount SOIC 14 4.5µs Serial (SPI/Microwire) Bipolar External Single
    RS庫存編號 662-1912
    製造零件編號TLV5619CDW
    TWD521.00
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    Resistor String 12 bit 1Msps ±0.5%FSR ±4LSB 1 Surface Mount SOIC 20 3µs Parallel Unipolar External Single
    RS庫存編號 823-0959
    製造零件編號MCP4716A1T-E/CH
    BrandMicrochip
    TWD33.60
    /個 (每包:10個)
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    Resistor String 10 bit - 20.5LSB 3.625LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Bipolar External Single
    RS庫存編號 522-9240
    製造零件編號AD7542JNZ
    TWD2,100.00
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    R-2R, Resistor String 12 bit - ±4LSB ±1LSB 1 Through Hole PDIP 16 2µs Parallel - External Single
    RS庫存編號 876-7256
    製造零件編號MCP4922-E/SL
    BrandMicrochip
    TWD97.50
    毎管:57 個
    單位
    Resistor String 12 bit - 1%FSR ±12LSB 2 Surface Mount SOIC 14 4.5µs Serial (SPI/Microwire) Bipolar External Single
    RS庫存編號 162-7120
    製造零件編號TLV5619CDW
    TWD344.30
    毎管:25 個
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    Resistor String 12 bit 1Msps ±0.5%FSR ±4LSB 1 Surface Mount SOIC 20 3µs Parallel Unipolar External Single
    RS庫存編號 165-2216
    製造零件編號MCP4716A1T-E/CH
    BrandMicrochip
    TWD30.90
    個 (在毎卷:3000)
    單位
    Resistor String 10 bit - 20.5LSB 3.625LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Bipolar External Single
    RS庫存編號 522-9379
    製造零件編號AD7224KNZ
    TWD818.00
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    R-2R, Resistor String 8 bit 143ksps ±1.5LSB ±1LSB 1 Through Hole PDIP 18 20µs Parallel Unipolar External Dual, Single
    RS庫存編號 697-6940
    製造零件編號AD5764RBSUZ
    TWD2,005.00
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    R-2R, Resistor String 16 bit - ±0.02%FSR ±2LSB 4 Surface Mount TQFP 32 10µs Serial (SPI/QSPI/Microwire) Bipolar External, Internal Dual
    RS庫存編號 522-8821
    製造零件編號AD1866RZ
    TWD1,146.00
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    R-2R, Resistor String 16 bit - ±3%FSR ±3dB 2 Surface Mount SOIC W 16 - Serial Bipolar Internal Single
    RS庫存編號 522-9026
    製造零件編號AD767JNZ
    TWD1,655.00
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    Current Steering 12 bit - ±0.2%FSR ±1LSB 1 Through Hole PDIP 24 4µs Parallel Bipolar, Unipolar External, Internal Dual
    RS庫存編號 402-803
    製造零件編號MCP4921-E/SN
    BrandMicrochip
    TWD80.00
    /個 (每包:2個)
    單位
    Resistor String 12 bit - 1%FSR +12LSB 1 Surface Mount SOIC 8 4.5µs Serial (SPI/Microwire) Bipolar External Single