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
PHP77.981
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
PHP88.985
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. 538-6422
Mfr. Part No.AD5543BRZ
PHP933.20
Each
units
16 bit 1 Serial (SPI) Surface Mount SOIC Single 2.47Msps 5 V External R-2R, Resistor String 8 0.5µs Unipolar ±4mV
RS Stock No. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
PHP118.35
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. 876-7240
Mfr. Part No.MCP4922-E/P
BrandMicrochip
PHP114.98
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. 810-7714
Mfr. Part No.AD5683RBRMZ
PHP381.68
Each
units
16 bit 1 Serial (SPI) Surface Mount MSOP Single - 2.7 → 5.5 V Internal Resistor String 10 7µs - ±0.075%FSR
RS Stock No. 121-9190
Mfr. Part No.DAC8501E/250
PHP235.306
Each (On a Reel of 250)
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 93ksps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.25%FSR
RS Stock No. 709-6825
Mfr. Part No.AD7846KNZ
PHP3,420.99
Each
units
16 bit 1 Parallel Through Hole PDIP Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 858-0787
Mfr. Part No.LTC1458CSW#PBF
PHP1,285.60
Each
units
12 bit 4 Serial (SPI) Surface Mount SOIC W Single - 5 V External, Internal R-2R 28 14µs Unipolar -
RS Stock No. 662-1473
Mfr. Part No.DAC8501E/250
PHP363.50
Each
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 93ksps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.25%FSR
RS Stock No. 407-331
Mfr. Part No.DAC088S085CIMT/NOPB
PHP224.75
Each
units
8 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 3.3 V, 5 V External Resistor String 16 4.5µs Unipolar -0.75%FSR
RS Stock No. 378-1926
Mfr. Part No.DAC7612U
PHP489.83
Each
units
12 bit 2 Serial (SPI) Surface Mount SOIC Single 130ksps 5 V Internal R-2R, Resistor String 8 7µs Unipolar -
RS Stock No. 100-3823
Mfr. Part No.DAC7612U
PHP444.68
Each (In a Tube of 75)
units
12 bit 2 Serial (SPI) Surface Mount SOIC Single 130ksps 5 V Internal R-2R, Resistor String 8 7µs Unipolar -
RS Stock No. 402-803
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
PHP103.79
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 681-1092
Mfr. Part No.MCP4822-E/P
BrandMicrochip
PHP145.21
Each
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V Internal Resistor String 8 4.5µs Unipolar ±2%FSR
RS Stock No. 889-6048
Mfr. Part No.MCP4821-E/SN
BrandMicrochip
PHP86.54
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 889-5831
Mfr. Part No.MCP4822-E/P
BrandMicrochip
PHP118.874
Each (In a Tube of 60)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V Internal Resistor String 8 4.5µs Unipolar ±2%FSR
RS Stock No. 522-8483
Mfr. Part No.AD7243ANZ
PHP1,226.90
Each
units
12 bit 1 Serial (SPI) Through Hole PDIP Dual, Single 300ksps 12 V, 15 V External, Internal R-2R, Resistor String 16 10µs Bipolar, Unipolar ±6LSB
RS Stock No. 738-6682
Mfr. Part No.MCP4821-E/SN
BrandMicrochip
PHP108.86
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 876-7199
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
PHP70.849
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR