General Purpose DACs

Digital-to-analog converter (DAC) are devices that convert digital signals into an analog output signal for other devices to recognise.


DACs are used most in the audio industry. The digital audio signal (binary code) gets converted into analog signal ready for the next device or headphone amplifier to pick up. Other uses for DACs include use in TV’s (televisions) and smartphones, they typically convert digital video into analog. You can also use DACs in calibration equipment, motor controllers. Potentiometers and data distribution.


Types of Digital to Analog Converter


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.



DACS in audio-


To be able to listen to MP3 files or CDs you must have a conversion from the digital signal (MP3 files, CDs) into an analog signal for the music to be played through headphones or speakers. Once the signal has been converted it can then be passed onto an amplifier.


When playing games online or using VOIP (voice over IP) you will also need a conversion from digital to analog. You can find a range of our Audio DACs


Things to consider -


  • DACs come with all types of performance specifications, a few to consider are listed below

  • Maximum sample rate - The measurement of which the DAC circuit can operate and still provide a high accuracy reading.

  • Resolution - This would be the number of output levels that the DAC can convert. The measurement is usually ’bits’

  • Dynamic range - The measurement of the highest and lowest decibels the DAC can re-create. the dynamic range is closely related to the resolution.

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Description Price Resolution Number of DAC Channels Digital Interface Type Mounting Type Package Type Power Supply Type Conversion Rate Typical Single Supply Voltage Voltage Reference Architecture Pin Count Maximum Settling Time Output Polarity Full Scale Error
RS Stock No. 522-8607
Mfr. Part No.AD7528KNZ
£13.73
Each
Units
8 bit 2 Parallel Through Hole PDIP Single 5.6Msps 9 V, 12 V External R-2R, Resistor String 20 0.4µs - ±4LSB
RS Stock No. 160-9847
Mfr. Part No.AD5421CREZ
£10.055
Each (In a Tube of 50)
Units
16 bit 1 Serial (SPI) Surface Mount TSSOP Single - 5.5 → 52 V External, Internal Current Steering 28 50µs - ±0.126%FSR
RS Stock No. 158-5256
Mfr. Part No.AD7245AANZ
£17.54
Each (In a Tube of 15)
Units
12 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 12 V, 15 V Internal R-2R, Resistor String 24 7µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 709-5456
Mfr. Part No.AD7245AANZ
£19.29
Each
Units
12 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 12 V, 15 V Internal R-2R, Resistor String 24 7µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 165-1973
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
£1.12
Each (In a Tube of 100)
Units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 6µs Unipolar -
RS Stock No. 522-8843
Mfr. Part No.AD558JNZ
£16.92
Each
Units
8 bit 1 Parallel Through Hole PDIP Single - 12 V, 15 V, 5 V, 9 V Internal R-2R, Resistor String 16 3µs Unipolar ±2.5LSB
RS Stock No. 106-7077
Mfr. Part No.AD558JNZ
£14.263
Each (In a Tube of 25)
Units
8 bit 1 Parallel Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V Internal R-2R, Resistor String 16 3µs Unipolar ±2.5LSB
RS Stock No. 823-1110
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
£1.46
Each (In a Pack of 5)
Units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 6µs Unipolar -
RS Stock No. 820-9747
Mfr. Part No.AD5421CREZ
£12.89
Each
Units
16 bit 1 Serial (SPI) Surface Mount TSSOP Single - 5.5 → 52 V External, Internal Current Steering 28 50µs - ±0.126%FSR
RS Stock No. 165-1906
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
£0.565
Each (On a Reel of 3000)
Units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single 3.4Msps 2.7 → 5.5 V External Resistor String 6 6µs Bipolar -
RS Stock No. 823-0959
Mfr. Part No.MCP4716A1T-E/CH
BrandMicrochip
£0.635
Each (In a Pack of 10)
Units
10 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 20.5LSB
RS Stock No. 806-5355
Mfr. Part No.AD5504BRUZ
£15.66
Each
Units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 2.3 → 5.5 V Internal Resistor String 16 55µs - +275mV
RS Stock No. 165-2216
Mfr. Part No.MCP4716A1T-E/CH
BrandMicrochip
£0.48
Each (On a Reel of 3000)
Units
10 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 20.5LSB
RS Stock No. 158-5294
Mfr. Part No.AD5440YRUZ
£4.232
Each (In a Tube of 62)
Units
10 bit 2 Parallel Surface Mount TSSOP Single 21.3Msps 3.3 V, 5 V External R-2R, Resistor String 24 0.12µs - ±25mV
RS Stock No. 160-1653
Mfr. Part No.AD5504BRUZ
£13.21
Each (In a Tube of 96)
Units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 2.3 → 5.5 V Internal Resistor String 16 55µs - +275mV
RS Stock No. 770-9798
Mfr. Part No.MCP4821-E/P
BrandMicrochip
£1.78
Each (In a Pack of 2)
Units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar 12LSB
RS Stock No. 825-1060
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
£0.743
Each (In a Pack of 10)
Units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single 3.4Msps 2.7 → 5.5 V External Resistor String 6 6µs Bipolar -
RS Stock No. 822-5799
Mfr. Part No.LTC1595CCS8#PBF
£19.54
Each
Units
16 bit 1 Serial (SPI/Microwire) Surface Mount SOIC Single - 5 V Internal R-2R 8 1µs Bipolar, Unipolar ±1LSB
RS Stock No. 165-2133
Mfr. Part No.MCP4821-E/P
BrandMicrochip
£1.49
Each (In a Tube of 60)
Units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar 12LSB
RS Stock No. 709-5890
Mfr. Part No.AD5440YRUZ
£4.34
Each
Units
10 bit 2 Parallel Surface Mount TSSOP Single 21.3Msps 3.3 V, 5 V External R-2R, Resistor String 24 0.12µs - ±25mV
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