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
  • Digit

...
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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. 162-8162
Mfr. Part No.DSD1794ADB
£13.561
Each (In a Tube of 47)
Units
Delta Sigma 24 bit 192ksps ±6%FSR - 2 Surface Mount SOIC 28 - Serial (SPI) Bipolar Internal Single
RS Stock No. 460-613
Mfr. Part No.DAC0808LCN/NOPB
£1.734
Each (In a Pack of 5)
Units
R-2R, Resistor String 8 bit - - ±0.19%FSR 1 Through Hole MDIP 16 0.15µs Parallel Unipolar External Dual
RS Stock No. 912-3023
Mfr. Part No.MCP4802-E/P
BrandMicrochip
£0.936
Each (In a Tube of 60)
Units
Resistor String 8 bit - ±2%FSR 1LSB 2 Through Hole PDIP 8 4.5µs Serial (SPI) Bipolar Internal Single
RS Stock No. 346-7030
Mfr. Part No.TLC7226CN
£4.75
Each
Units
R-2R, Resistor String 8 bit 143ksps ±2LSB ±1LSB 4 Through Hole PDIP 20 20µs Parallel Bipolar, Unipolar External Dual, Single
RS Stock No. 831-9103
Mfr. Part No.AD5693RARMZ
£5.18
Each
Units
Resistor String 16 bit - ±0.075%FSR ±8LSB 1 Surface Mount MSOP 10 7µs Serial (I2C) - External Single
RS Stock No. 162-7663
Mfr. Part No.DAC8564IAPW
£9.469
Each (In a Tube of 90)
Units
Resistor String 16 bit - ±0.5%FSR 4LSB 4 Surface Mount TSSOP 16 12µs Serial (SPI) Bipolar External, Internal Single
RS Stock No. 726-3873
Mfr. Part No.MCP4802-E/P
BrandMicrochip
£1.13
Each (In a Pack of 5)
Units
Resistor String 8 bit - ±2%FSR 1LSB 2 Through Hole PDIP 8 4.5µs Serial (SPI) Bipolar Internal Single
RS Stock No. 758-9626
Mfr. Part No.AD5422AREZ
£9.99
Each
Units
R-2R, Resistor String 16 bit 40ksps +0.007%FSR +0.008%FSR - Surface Mount TSSOP 24 25µs Serial (SPI) Bipolar, Unipolar External Dual, Single
RS Stock No. 813-6438
Mfr. Part No.DAC8564IAPW
£10.98
Each
Units
Resistor String 16 bit - ±0.5%FSR 4LSB 4 Surface Mount TSSOP 16 12µs Serial (SPI) Bipolar External, Internal Single
RS Stock No. 823-0767
Mfr. Part No.MCP4725A1T-E/CH
BrandMicrochip
£0.732
Each (In a Pack of 10)
Units
Resistor String 12 bit - - ±14.5LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Bipolar External Single
RS Stock No. 121-8521
Mfr. Part No.TLC7226CN
£4.152
Each (In a Tube of 20)
Units
- - - - - - - - - - - - - -
RS Stock No. 412-961
Mfr. Part No.AD5321BRMZ
£6.44
Each
Units
Resistor String 12 bit 125ksps ±1.25%FSR ±16LSB 1 Surface Mount MSOP 8 10µs Serial (I2C) Unipolar External Single
RS Stock No. 496-7660
Mfr. Part No.AD5443YRMZ
£4.86
Each
Units
R-2R, Resistor String 12 bit 2.5Msps ±10mV ±1LSB 1 Surface Mount MSOP 10 0.16µs Serial (SPI/QSPI/Microwire) - External Single
RS Stock No. 813-6548
Mfr. Part No.DSD1794ADB
£6.34
Each
Units
Delta Sigma 24 bit 192ksps ±6%FSR - 2 Surface Mount SOIC 28 - Serial (SPI) Bipolar Internal Single
RS Stock No. 709-5998
Mfr. Part No.AD5754AREZ
£16.48
Each
Units
Resistor String 16 bit 100ksps 0.08%FSR ±16LSB 4 Surface Mount TSSOP 24 12µs Serial (SPI/QSPI/Microwire) Bipolar, Unipolar External Dual, Single
RS Stock No. 497-2858
Mfr. Part No.AD5326BRUZ
£13.09
Each
Units
Resistor String 12 bit 125ksps ±1.25%FSR ±10LSB 4 Surface Mount TSSOP 16 10µs Serial (I2C) Unipolar External Single
RS Stock No. 894-9001
Mfr. Part No.AD5672RBRUZ
£9.64
Each
Units
- 12 bit - ±0.14%FSR ±1LSB 8 Surface Mount TSSOP 20 8µs Serial - Internal Single
RS Stock No. 165-2207
Mfr. Part No.MCP4725A1T-E/CH
BrandMicrochip
£0.556
Each (On a Reel of 3000)
Units
Resistor String 12 bit - - ±14.5LSB 1 Surface Mount SOT-23 6 6µs Serial (I2C) Bipolar External Single
RS Stock No. 523-6692
Mfr. Part No.AD7248JNZ
£25.03
Each
Units
R-2R, Resistor String 12 bit - ±0.2%FSR ±1LSB 1 Through Hole PDIP 20 10µs Parallel Bipolar, Unipolar Internal Dual, Single
RS Stock No. 806-5434
Mfr. Part No.AD5686RARUZ
£13.47
Each
Units
Resistor String 16 bit - ±0.2%FSR ±8LSB 4 Surface Mount TSSOP 16 8µs Serial (SPI) - Internal Single