Digital to Analogue Converters

Digital to analogue converter are devices that convert digital signals into an analogue output signal for other devices to recognise.

DACs are used most in the audio industry. The digital audio signal (binary code) gets converted into analogue signal ready for the next device or headphone amplifier to pick up

What does a digital to analogue converter do?

Audio digital to analogue converters captures and converts high-quality digital audio to direct line level output analogue signal. On the other hand, when the goal is a conversion from analogue to digital, the best way to achieve that is via audio ADCs converters.

Video digital to analogue converters is a high-frequency low- to medium-resolution type that is used to convert digital video data into analogue video signals.

Types of digital to analogue converters

  • R-2R Ladder DAC - This DAC is a binary converter that uses a repeating cascaded resistor values R and 2R. Using R-2R improves accuracy.
  • Switched Capacitor - A switched capacitor includes a parallel capacitor network.
  • Switched Resistor - Contains a parallel resistor system. 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

Audio digital to analogue converters are widely used in applications such as;

  • Converters for audio applications
  • Digital music systems
  • PC sound cards

Video digital to analogue converter have application use in;

  • Mobile phones
  • TV’s
  • Digital radio modulation

...
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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. 820-9334
Mfr. Part No.AD5641BKSZ-500RL7
TWD180.50
Each (In a Pack of 2)
units
Resistor String 14 bit - ±0.5mV ±4LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI) Bipolar External Single
RS Stock No. 102-5618
Mfr. Part No.DAC0800LCM/NOPB
TWD55.60
Each (In a Tube of 48)
units
Current Steering 8 bit - ±1LSB ±0.19%FSR 1 Surface Mount SOIC 16 0.15µs Parallel Unipolar External Dual
RS Stock No. 738-7121
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
TWD32.00
Each (In a Pack of 5)
units
Resistor String 12 bit - 82LSB 14.5LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Unipolar External Single
RS Stock No. 662-1789
Mfr. Part No.TLC7225CDW
TWD214.00
Each
units
R-2R, Resistor String 8 bit 143ksps ±2LSB ±1LSB 4 Surface Mount SOIC 24 7µs Parallel Bipolar, Unipolar External Dual, Single
RS Stock No. 709-5935
Mfr. Part No.AD5624BRMZ
TWD342.00
Each
units
Resistor String 12 bit 287ksps ±1%FSR ±1LSB 4 Surface Mount MSOP 10 4.5µs Serial (SPI/QSPI/Microwire) Unipolar External Single
RS Stock No. 523-7106
Mfr. Part No.DAC8412FPZ
TWD2,213.00
Each
units
R-2R, Resistor String 12 bit 167ksps ±8LSB ±4LSB 4 Through Hole PDIP 28 10µs Parallel Unipolar External Dual, Single
RS Stock No. 160-7973
Mfr. Part No.AD5641BKSZ-500RL7
TWD109.10
Each (On a Reel of 500)
units
Resistor String 14 bit - ±0.5mV ±4LSB 1 Surface Mount SC-70 6 10µs Serial (SPI/QSPI) Bipolar External Single
RS Stock No. 889-5847
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
TWD24.30
Each (On a Reel of 3000)
units
Resistor String 12 bit - 82LSB 14.5LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Unipolar External Single
RS Stock No. 538-6034
Mfr. Part No.AD5545BRUZ
TWD726.00
Each
units
Current Steering, R-2R 16 bit 2Msps ±4mV ±2LSB 2 Surface Mount TSSOP 16 0.5µs Serial (SPI) Unipolar External Single
RS Stock No. 716-5851
Mfr. Part No.CS43L22-CNZ
TWD188.00
Each
units
Delta Sigma 24 bit 96ksps - - 1 Surface Mount QFN 40 - Serial Bipolar Internal Single
RS Stock No. 851-4611
Mfr. Part No.LTC2601IDD#PBF
TWD232.00
Each
units
R-2R 16 bit - - ±64LSB 1 Surface Mount DFN 10 10µs Serial (SPI/Microwire) - - Single
RS Stock No. 709-5945
Mfr. Part No.AD5645RBRUZ
TWD473.00
Each
units
Resistor String 14 bit - ±0.5%FSR ±4LSB 4 Surface Mount TSSOP 14 5µs Serial (I2C) Unipolar External, Internal Single
RS Stock No. 823-1110
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
TWD62.80
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. 923-3515
Mfr. Part No.DAC7714UB
TWD855.80
Each (In a Tube of 40)
units
R-2R, Resistor String 12 bit 89ksps ±2LSB ±1LSB 4 Surface Mount SOIC 16 10µs Serial Bipolar, Unipolar External Dual, Single
RS Stock No. 497-0177
Mfr. Part No.AD5318BRUZ
TWD368.00
Each
units
Resistor String 10 bit 167ksps ±1.25%FSR ±3LSB 8 Surface Mount TSSOP 16 9µs Serial (SPI/QSPI/Microwire) Unipolar External Single
RS Stock No. 230-826
Mfr. Part No.AD7528JRZ
TWD584.00
Each
units
R-2R, Resistor String 8 bit 5.6Msps ±6LSB ±1LSB 2 Surface Mount SOIC W 20 0.4µs Parallel - External Single
RS Stock No. 533-8776
Mfr. Part No.DAC0800LCN/NOPB
TWD67.00
Each
units
Current Steering 8 bit - ±1LSB ±0.19%FSR 1 Through Hole MDIP 16 0.15µs Parallel Unipolar External Dual
RS Stock No. 916-3699
Mfr. Part No.MCP48FVB22-E/UN
BrandMicrochip
TWD74.80
Each (In a Pack of 5)
units
Resistor String 12 bit - 70LSB 6LSB 2 Surface Mount MSOP 10 7.8µs Serial (SPI) Bipolar Internal Single
RS Stock No. 522-8843
Mfr. Part No.AD558JNZ
TWD838.00
Each
units
R-2R, Resistor String 8 bit - ±2.5LSB ±0.5LSB 1 Through Hole PDIP 16 3µs Parallel Unipolar Internal Single
RS Stock No. 662-5501
Mfr. Part No.PCM2706PJT
TWD342.00
Each
units
Delta Sigma 16 bit 48ksps ±8%FSR - 2 Surface Mount TQFP 32 - Serial Bipolar - Single