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. 146-0165
Mfr. Part No.MCP4911-E/P
BrandMicrochip
£0.877
Each (In a Tube of 60)
Units
Resistor String 10 bit - 1%FSR 3.5LSB 1 Through Hole PDIP 8 4.5µs Serial (SPI) Bipolar External Single
RS Stock No. 538-8298
Mfr. Part No.AD5342BRUZ
£10.16
Each
Units
Resistor String 12 bit 125ksps ±1%FSR ±16LSB 2 Surface Mount TSSOP 28 10µs Parallel Unipolar External Single
RS Stock No. 738-7121
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
£0.732
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. 806-5519
Mfr. Part No.AD5791ARUZ
£49.99
Each
Units
R-2R, Resistor String 20 bit - ±21LSB ±4LSB 1 Surface Mount TSSOP 20 1µs Serial (SPI) Bipolar External, Internal Dual
RS Stock No. 522-8607
Mfr. Part No.AD7528KNZ
£13.30
Each
Units
R-2R, Resistor String 8 bit 5.6Msps ±4LSB ±0.5LSB 2 Through Hole PDIP 20 0.4µs Parallel - External Single
RS Stock No. 522-9004
Mfr. Part No.DAC08CPZ
£3.13
Each
Units
Current Steering 8 bit 11.8Msps ±1LSB ±0.39%FSR 1 Through Hole PDIP 16 0.15µs Parallel Unipolar External Dual
RS Stock No. 889-5847
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
£0.556
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. 522-9212
Mfr. Part No.AD7533JNZ
£9.97
Each
Units
R-2R, Resistor String 10 bit 1.7Msps ±1%FSR ±0.2%FSR 1 Through Hole PDIP 16 0.8µs Parallel - External Single
RS Stock No. 165-1973
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
£1.11
Each (In a Tube of 100)
Units
Resistor String 12 bit - - ±13LSB 4 Surface Mount MSOP 10 6µs Serial (I2C) Unipolar External, Internal Single
RS Stock No. 709-5456
Mfr. Part No.AD7245AANZ
£14.75
Each
Units
R-2R, Resistor String 12 bit 143ksps ±0.2%FSR ±1LSB 1 Through Hole PDIP 24 7µs Parallel Bipolar, Unipolar Internal Dual, Single
RS Stock No. 823-1110
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
£1.47
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. 412-400
Mfr. Part No.ADV7125KSTZ50
£6.93
Each
Units
Segmented 8 bit 50Msps ±5%FSR ±1LSB 3 Surface Mount LQFP 48 - Parallel Unipolar External, Internal Single
RS Stock No. 716-5832
Mfr. Part No.CS4385-CQZ
£5.52
Each
Units
Delta Sigma 24 bit 216ksps - - 8 Surface Mount LQFP 48 - Serial Bipolar Internal Single
RS Stock No. 820-9747
Mfr. Part No.AD5421CREZ
£11.87
Each
Units
Current Steering 16 bit - ±0.126%FSR ±1LSB 1 Surface Mount TSSOP 28 50µs Serial (SPI) - External, Internal Single
RS Stock No. 522-8843
Mfr. Part No.AD558JNZ
£17.58
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
£7.83
Each
Units
Delta Sigma 16 bit 48ksps ±8%FSR - 2 Surface Mount TQFP 32 - Serial Bipolar - Single
RS Stock No. 162-7021
Mfr. Part No.PCM2706PJT
£4.995
Each (On a Reel of 250)
Units
Delta Sigma 16 bit 48ksps ±8%FSR - 2 Surface Mount TQFP 32 - Serial Bipolar - Single
RS Stock No. 169-8390
Mfr. Part No.CS4385-CQZ
£3.58
Each (In a Tray of 250)
Units
Delta Sigma 24 bit 216ksps - - 8 Surface Mount LQFP 48 - Serial Bipolar Internal Single
RS Stock No. 709-5890
Mfr. Part No.AD5440YRUZ
£6.53
Each
Units
R-2R, Resistor String 10 bit 21.3Msps ±25mV ±0.5LSB 2 Surface Mount TSSOP 24 0.12µs Parallel - External Single
RS Stock No. 806-5355
Mfr. Part No.AD5504BRUZ
£15.45
Each
Units
Resistor String 12 bit - +275mV ±3LSB 4 Surface Mount TSSOP 16 55µs Serial (SPI/QSPI/Microwire) - Internal Single