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. 889-5531
Mfr. Part No.MCP4921-E/P
BrandMicrochip
R 24.309
Each (In a Tube of 60)
units
12 bit 1 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V External Resistor String 8 4.5µs Unipolar 1%FSR
RS stock no. 738-6027
Mfr. Part No.MCP4921-E/P
BrandMicrochip
R 34.855
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V External Resistor String 8 4.5µs Unipolar 1%FSR
RS stock no. 825-1060
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
R 14.054
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. 165-1906
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
R 10.833
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. 738-7124
Mfr. Part No.MCP4716A0T-E/CH
BrandMicrochip
R 15.926
Each (In a Pack of 5)
units
10 bit 1 Serial (I2C) Surface Mount SOT-23-6 Single - 2.7 → 5.5 V External Resistor String 6 6µs Unipolar 20.5LSB
RS stock no. 709-5888
Mfr. Part No.AD5420AREZ
R 160.44
Each
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 12 V, 15 V, 18 V, 24 V, 28 V External, Internal R-2R, Resistor String 24 40µs Unipolar ±0.2%FSR
RS stock no. 912-7716
Mfr. Part No.AD5420AREZ
R 133.055
Each (In a Tube of 62)
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 12 V, 15 V, 18 V, 24 V, 28 V External, Internal R-2R, Resistor String 24 40µs Unipolar ±0.2%FSR
RS stock no. 889-5301
Mfr. Part No.MCP4716A0T-E/CH
BrandMicrochip
R 9.288
Each (On a Reel of 3000)
units
10 bit 1 Serial (I2C) Surface Mount SOT-23-6 Single - 2.7 → 5.5 V External Resistor String 6 6µs Unipolar 20.5LSB
RS stock no. 823-7929
Mfr. Part No.MCP4726A1T-E/CH
BrandMicrochip
R 15.918
Each (In a Pack of 10)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 82LSB
RS stock no. 165-1905
Mfr. Part No.MCP4726A1T-E/CH
BrandMicrochip
R 9.118
Each (On a Reel of 3000)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 82LSB
RS stock no. 165-2207
Mfr. Part No.MCP4725A1T-E/CH
BrandMicrochip
R 10.814
Each (On a Reel of 3000)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar -
RS stock no. 461-9096
Mfr. Part No.PCM1744U
R 94.94
Each
units
24 bit 2 Serial Surface Mount SOIC Single 96ksps 5 V - Delta Sigma 14 - Bipolar ±10%FSR
RS stock no. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
R 20.512
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. 162-4166
Mfr. Part No.DAC121C085CIMM/NOPB
R 22.979
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. 887-7316
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
R 10.804
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. 146-0259
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
R 21.477
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. 491-5625
Mfr. Part No.CS4398-CZZ
R 270.85
Each
units
24 bit 2 Serial Surface Mount TSSOP Single 216ksps 5 V External, Internal Delta Sigma 28 - Bipolar -
RS stock no. 169-8303
Mfr. Part No.CS4398-CZZ
R 121.91
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. 823-7922
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
R 28.108
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. 162-4260
Mfr. Part No.PCM1744U
R 82.546
Each (In a Tube of 50)
units
24 bit 2 Serial Surface Mount SOIC Single 96ksps 5 V - Delta Sigma 14 - Bipolar ±10%FSR