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. 806-5513
Mfr. Part No.AD5791BRUZ
€101.35
Each
units
20 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±21LSB
RS Stock No. 912-8126
Mfr. Part No.AD5791BRUZ
€91.341
Each (In a Tube of 75)
units
20 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±21LSB
RS Stock No. 496-8089
Mfr. Part No.AD5337ARMZ
€3.68
Each
units
8 bit 2 Serial Surface Mount MSOP Single 14.8ksps 3.3 V, 5 V External Resistor String 8 8µs Unipolar ±1%FSR
RS Stock No. 461-9096
Mfr. Part No.PCM1744U
€2.81
Each
units
24 bit 2 Serial Surface Mount SOIC Single 96ksps 5 V - Delta Sigma 14 - Bipolar ±10%FSR
RS Stock No. 887-7316
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
€0.655
Each (On a Reel of 3000)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23A Single - 3.3 V, 5 V External Resistor String 6 6µs Unipolar ±2%FSR
RS Stock No. 161-0551
Mfr. Part No.AD5337ARMZ
€3.016
Each (In a Tube of 50)
units
8 bit 2 Serial Surface Mount MSOP Single 14.8ksps 3.3 V, 5 V External Resistor String 8 8µs Unipolar ±1%FSR
RS Stock No. 876-7240
Mfr. Part No.MCP4922-E/P
BrandMicrochip
€1.96
Each (In a Tube of 30)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Bipolar -
RS Stock No. 662-1451
Mfr. Part No.DAC7512N/250
€4.11
Each
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOT-23 Single 95ksps 3.3 V, 5 V External Resistor String 6 12µs Unipolar -1.25%FSR
RS Stock No. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
€0.864
Each (In a Pack of 5)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23A Single - 3.3 V, 5 V External Resistor String 6 6µs Unipolar ±2%FSR
RS Stock No. 162-4260
Mfr. Part No.PCM1744U
€2.707
Each (In a Tube of 50)
units
24 bit 2 Serial Surface Mount SOIC Single 96ksps 5 V - Delta Sigma 14 - Bipolar ±10%FSR
RS Stock No. 922-2616
Mfr. Part No.DAC7512N/250
€2.68
Each (On a Reel of 250)
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOT-23 Single 95ksps 3.3 V, 5 V External Resistor String 6 12µs Unipolar -1.25%FSR
RS Stock No. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
€2.355
Each (In a Pack of 2)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 3 V, 5 V External Resistor String 14 4.5µs Unipolar 1%FSR
RS Stock No. 538-4173
Mfr. Part No.PM7543FPZ
€13.16
Each
units
12 bit 1 Serial Through Hole PDIP Single - 5 V External R-2R, Resistor String 16 - - ±2LSB
RS Stock No. 162-4166
Mfr. Part No.DAC121C085CIMM/NOPB
€1.027
Each (On a Reel of 1000)
units
12 bit 1 Serial (I2C) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 8 8.5µs Unipolar -0.7%FSR
RS Stock No. 823-1110
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
€1.694
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. 160-1688
Mfr. Part No.AD5781ARUZ
€24.082
Each (In a Tube of 75)
units
18 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±5.25LSB
RS Stock No. 517-123
Mfr. Part No.DAC121C085CIMM/NOPB
€2.08
Each
units
12 bit 1 Serial (I2C) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 8 8.5µs Unipolar -0.7%FSR
RS Stock No. 538-8125
Mfr. Part No.AD5551BRZ
€15.72
Each
units
14 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 1Msps 3 V, 5 V External R-2R, Resistor String 8 1µs Unipolar 0.5LSB
RS Stock No. 169-8303
Mfr. Part No.CS4398-CZZ
€8.503
Each (In a Tube of 50)
units
24 bit 2 Serial Surface Mount TSSOP Single 216ksps 5 V External, Internal Delta Sigma 28 - Bipolar -
RS Stock No. 806-5503
Mfr. Part No.AD5781ARUZ
€27.71
Each
units
18 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±5.25LSB
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