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. 759-0822
Mfr. Part No.AD5667RBRMZ-2
SGD14.88
Each
units
16 bit 2 Serial Surface Mount MSOP Single 250ksps 2.7 → 5.5 V External, Internal Resistor String 10 7µs Unipolar ±1%FSR
RS Stock No. 540-3993
Mfr. Part No.MAX517ACPA+
SGD14.57
Each
units
8 bit 1 Serial (I2C) Through Hole PDIP Single - 5 V External R-2R, Resistor String 8 6µs Unipolar ±18mV
RS Stock No. 165-9072
Mfr. Part No.MAX517ACPA+
SGD15.665
Each (In a Tube of 50)
units
8 bit 1 Serial (I2C) Through Hole PDIP Single - 5 V External R-2R, Resistor String 8 6µs Unipolar ±18mV
RS Stock No. 681-1092
Mfr. Part No.MCP4822-E/P
BrandMicrochip
SGD5.20
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. 889-5831
Mfr. Part No.MCP4822-E/P
BrandMicrochip
SGD3.292
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. 160-2949
Mfr. Part No.AD5676BRUZ
SGD24.58
Each (In a Tube of 75)
units
16 bit 8 Serial Surface Mount TSSOP Single - 2.7 → 5.5 V External - 20 8µs - ±0.14%FSR
RS Stock No. 726-3882
Mfr. Part No.MCP4911-E/P
BrandMicrochip
SGD2.126
Each (In a Pack of 5)
units
10 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 165-1906
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
SGD1.125
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. 146-0165
Mfr. Part No.MCP4911-E/P
BrandMicrochip
SGD1.663
Each (In a Tube of 60)
units
10 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 894-9010
Mfr. Part No.AD5676BRUZ
SGD29.41
Each
units
16 bit 8 Serial Surface Mount TSSOP Single - 2.7 → 5.5 V External - 20 8µs - ±0.14%FSR
RS Stock No. 825-1060
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
SGD1.56
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. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
SGD4.04
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. 346-7046
Mfr. Part No.TLC7528CN
SGD6.76
Each
units
8 bit 2 Parallel Through Hole PDIP Single 10Msps 15 V, 5 V External R-2R, Resistor String 20 0.1µs - 2.5LSB
RS Stock No. 884-6955
Mfr. Part No.LTC1660CN#PBF
SGD17.09
Each
units
10 bit 8 Serial Through Hole PDIP Single - 2.7 → 5.5 V External, Internal - 16 30µs Bipolar ±15LSB
RS Stock No. 876-7240
Mfr. Part No.MCP4922-E/P
BrandMicrochip
SGD2.614
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. 158-0351
Mfr. Part No.LTC1660CN#PBF
SGD13.044
Each (In a Tube of 20)
units
10 bit 8 Serial Through Hole PDIP Single - 2.7 → 5.5 V External, Internal - 16 30µs Bipolar ±15LSB
RS Stock No. 522-8152
Mfr. Part No.AD557JNZ
SGD19.24
Each
units
8 bit 1 Parallel Through Hole PDIP Single 1.25Msps 5 V Internal R-2R, Resistor String 16 1.5µs Unipolar -
RS Stock No. 159-7620
Mfr. Part No.AD5754BREZ
SGD29.16
Each (In a Tube of 62)
units
16 bit 4 Serial (SPI) Surface Mount TSSOP Dual, Single 100ksps 2.7 → 5.5 V External Resistor String 24 12µs Bipolar, Unipolar -
RS Stock No. 106-7049
Mfr. Part No.AD557JNZ
SGD16.20
Each (In a Tube of 25)
units
8 bit 1 Parallel Through Hole PDIP Single 1.25Msps 5 V Internal R-2R, Resistor String 16 1.5µs Unipolar -
RS Stock No. 162-4366
Mfr. Part No.TLC7528CN
SGD4.058
Each (In a Tube of 20)
units
8 bit 2 Parallel Through Hole PDIP Single 10Msps 5 V, 15 V External R-2R, Resistor String 20 0.1µs - 2.5LSB
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