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. 709-6184
Mfr. Part No.AD7228ABNZ
TWD1,305.00
Each
units
8 bit 8 Parallel Through Hole PDIP Dual, Single 200ksps 5 V, 15 V External R-2R, Resistor String 24 7µs Unipolar ±4LSB
RS Stock No. 157-8499
Mfr. Part No.DAC8800FPZ
TWD879.10
Each (In a Tube of 18)
units
8 bit 8 Serial (SPI) Through Hole PDIP Dual, Single 1.25Msps 12 V External - 20 2µs Bipolar, Unipolar ±0.5LSB
RS Stock No. 158-0158
Mfr. Part No.AD5390BSTZ-5
TWD1,187.40
Each (In a Tray of 160)
units
14 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 125ksps 5 V External, Internal Resistor String 52 10µs Unipolar ±0.06%FSR
RS Stock No. 523-7235
Mfr. Part No.AD9754ARUZ
TWD638.00
Each
units
14 bit 1 Parallel Surface Mount TSSOP Single 125Msps 5 V External, Internal - 28 0.035µs - ±5%FSR
RS Stock No. 922-4703
Mfr. Part No.TLV5638CD
TWD378.00
Each (In a Tube of 75)
units
12 bit 2 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 233ksps 3 V, 5 V External, Internal Resistor String 8 7µs Unipolar ±0.6%FSR
RS Stock No. 523-6642
Mfr. Part No.AD7628KNZ
TWD312.00
Each
units
8 bit 2 Parallel Through Hole PDIP Single 2.9Msps 12 V, 15 V External R-2R, Resistor String 20 0.4µs - ±3LSB
RS Stock No. 738-6702
Mfr. Part No.MCP4922-E/ST
BrandMicrochip
TWD87.00
Each
units
12 bit 2 Serial (SPI) Surface Mount TSSOP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Unipolar 1%FSR
RS Stock No. 146-0259
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
TWD46.40
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. 806-5373
Mfr. Part No.AD5624RBRMZ-3
TWD362.00
Each
units
12 bit 4 Serial (SPI) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 4.5µs Bipolar ±1%FSR
RS Stock No. 823-7922
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
TWD62.80
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. 823-3683
Mfr. Part No.MCP4911-E/SN
BrandMicrochip
TWD44.40
Each (In a Pack of 5)
units
10 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar -
RS Stock No. 522-9874
Mfr. Part No.DAC8800FPZ
TWD934.00
Each
units
8 bit 8 Serial (SPI) Through Hole PDIP Dual, Single 1.25Msps 12 V External - 20 2µs Bipolar, Unipolar ±0.5LSB
RS Stock No. 154-7630
Mfr. Part No.LTC2606CDD#PBF
TWD130.30
Each (In a Tube of 121)
units
16 bit 1 Serial Surface Mount DFN Single 400kHz 2.7 → 5.5 V External R-2R, Resistor String 10 10µs - ±1LSB
RS Stock No. 538-4886
Mfr. Part No.AD5390BSTZ-5
TWD1,513.00
Each
units
14 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 125ksps 5 V External, Internal Resistor String 52 10µs Unipolar ±0.06%FSR
RS Stock No. 662-1984
Mfr. Part No.TLV5638CD
TWD443.00
Each
units
12 bit 2 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 233ksps 3 V, 5 V External, Internal Resistor String 8 7µs Unipolar ±0.6%FSR
RS Stock No. 709-5935
Mfr. Part No.AD5624BRMZ
TWD331.00
Each
units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 287ksps 3.3 V, 5 V External Resistor String 10 4.5µs Unipolar ±1%FSR
RS Stock No. 165-1973
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
TWD47.90
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. 230-826
Mfr. Part No.AD7528JRZ
TWD562.00
Each
units
8 bit 2 Parallel Surface Mount SOIC W Single 5.6Msps 9 V, 12 V External R-2R, Resistor String 20 0.4µs - ±6LSB
RS Stock No. 662-1789
Mfr. Part No.TLC7225CDW
TWD214.00
Each
units
8 bit 4 Parallel Surface Mount SOIC Dual, Single 143ksps 15 V External R-2R, Resistor String 24 7µs Bipolar, Unipolar ±2LSB
RS Stock No. 709-4774
Mfr. Part No.AD5542BRZ
TWD842.00
Each
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 1.5Msps 5 V External R-2R, Resistor String 14 1µs Bipolar, Unipolar ±7LSB