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. 876-7240
Mfr. Part No.MCP4922-E/P
BrandMicrochip
$3.685
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. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
$4.625
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. 145-7109
Mfr. Part No.LTC1453CN8#PBF
$12.528
Each (In a Tube of 50)
units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 3 V, 5 V Internal - 8 14µs Unipolar -
RS Stock No. 545-6802
Mfr. Part No.LTC1453CN8#PBF
$21.12
Each
units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 3 V, 5 V Internal - 8 14µs Unipolar -
RS Stock No. 111-1099
Mfr. Part No.DAC08CPZ
$5.159
Each (In a Tube of 25)
units
8 bit 1 Parallel Through Hole PDIP Dual 11.8Msps - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 165-1976
Mfr. Part No.MCP4911-E/SN
BrandMicrochip
$1.782
Each (In a Tube of 100)
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. 160-9871
Mfr. Part No.AD5693RARMZ
$8.437
Each (In a Tube of 50)
units
16 bit 1 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External Resistor String 10 7µs - ±0.075%FSR
RS Stock No. 831-9103
Mfr. Part No.AD5693RARMZ
$10.62
Each
units
16 bit 1 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External Resistor String 10 7µs - ±0.075%FSR
RS Stock No. 157-8499
Mfr. Part No.DAC8800FPZ
$46.013
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. 522-9874
Mfr. Part No.DAC8800FPZ
$45.45
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. 823-3683
Mfr. Part No.MCP4911-E/SN
BrandMicrochip
$2.434
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. 522-9004
Mfr. Part No.DAC08CPZ
$6.45
Each
units
8 bit 1 Parallel Through Hole PDIP Dual 11.8Msps - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 522-9509
Mfr. Part No.AD7541AJNZ
$38.71
Each
units
12 bit 1 Parallel Through Hole PDIP Single - 15 V External R-2R, Resistor String 18 0.6µs - ±8LSB
RS Stock No. 912-6454
Mfr. Part No.AD5362BSTZ
$61.75
Each (In a Tray of 160)
units
16 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount LQFP Dual - - External Resistor String 52 30µs Bipolar, Unipolar ±20mV
RS Stock No. 738-6702
Mfr. Part No.MCP4922-E/ST
BrandMicrochip
$4.41
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. 522-8843
Mfr. Part No.AD558JNZ
$37.20
Each
units
8 bit 1 Parallel Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V Internal R-2R, Resistor String 16 3µs Unipolar ±2.5LSB
RS Stock No. 538-4909
Mfr. Part No.AD5391BSTZ-5
$60.65
Each
units
12 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 167ksps 5 V External, Internal Resistor String 52 8µs Unipolar ±0.06%FSR
RS Stock No. 158-0159
Mfr. Part No.AD5391BSTZ-5
$61.55
Each (In a Tray of 160)
units
12 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 167ksps 5 V External, Internal Resistor String 52 8µs Unipolar ±0.06%FSR
RS Stock No. 158-0158
Mfr. Part No.AD5390BSTZ-5
$73.93
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. 111-2289
Mfr. Part No.AD5724AREZ
$18.887
Each (In a Tube of 62)
units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Dual, Single 100ksps 5 V, 9 V, 12 V, 15 V External Resistor String 24 12µs Bipolar, Unipolar 0.08%FSR
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