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. 145-0081
Mfr. Part No.TLC7524CN
£2.77
Each (In a Tube of 25)
Units
8 bit 1 Parallel Through Hole PDIP Single 10Msps 5 V, 15 V External R-2R, Resistor String 16 0.1µs - ±2.5LSB
RS Stock No. 650-087
Mfr. Part No.TLC7524CN
£3.19
Each
Units
8 bit 1 Parallel Through Hole PDIP Single 10Msps 15 V, 5 V External R-2R, Resistor String 16 0.1µs - ±2.5LSB
RS Stock No. 662-1638
Mfr. Part No.DAC8830ICD
£11.15
Each
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 1Msps 3 V, 5 V External R-2R, Resistor String 8 1µs Unipolar ±7LSB
RS Stock No. 922-2675
Mfr. Part No.DAC8830ICD
£9.415
Each (In a Tube of 75)
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 1Msps 3 V, 5 V External R-2R, Resistor String 8 1µs Unipolar ±7LSB
RS Stock No. 709-6480
Mfr. Part No.AD7538KNZ
£32.21
Each
Units
14 bit 1 Parallel Through Hole PDIP Single 667ksps 12 V, 15 V External R-2R, Resistor String 24 1.5µs - ±5LSB
RS Stock No. 145-1191
Mfr. Part No.LTC1446CN8#PBF
£7.816
Each (In a Tube of 50)
Units
12 bit 2 Serial (SPI) Through Hole PDIP Single - 5 V Internal R-2R 8 14µs Unipolar -
RS Stock No. 545-7158
Mfr. Part No.LTC1446CN8#PBF
£12.46
Each
Units
12 bit 2 Serial (SPI) Through Hole PDIP Single - 5 V Internal R-2R 8 14µs Unipolar -
RS Stock No. 159-7810
Mfr. Part No.AD7538KNZ
£28.889
Each (In a Tube of 15)
Units
14 bit 1 Parallel Through Hole PDIP Single 667ksps 12 V, 15 V External R-2R, Resistor String 24 1.5µs - ±5LSB
RS Stock No. 662-1921
Mfr. Part No.TLV5620CN
£2.30
Each
Units
8 bit 4 Serial (SPI) Through Hole PDIP Single 48ksps 3.3 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 162-7122
Mfr. Part No.TLV5620CN
£2.067
Each (In a Tube of 25)
Units
8 bit 4 Serial (SPI) Through Hole PDIP Single 48ksps 3.3 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 461-6312
Mfr. Part No.DAC8534IPW
£15.64
Each
Units
16 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single 93ksps 3.3 V, 5 V External Resistor String 16 10µs Unipolar -1%FSR
RS Stock No. 912-8126
Mfr. Part No.AD5791BRUZ
£78.742
Each (In a Tube of 75)
Units
20 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±21LSB
RS Stock No. 806-5513
Mfr. Part No.AD5791BRUZ
£85.63
Each
Units
20 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±21LSB
RS Stock No. 545-6565
Mfr. Part No.LTC1257CN8#PBF
£8.57
Each
Units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V External, Internal Resistor String 8 6µs Unipolar ±2LSB
RS Stock No. 709-9139
Mfr. Part No.DAC8411IDCKT
£4.83
Each
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SC-70 Single - 2.5 V, 3.3 V, 5 V Supply Resistor String 6 10µs Unipolar 0.2%FSR
RS Stock No. 160-1661
Mfr. Part No.AD5648ARUZ-2
£12.634
Each (In a Tube of 96)
Units
14 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal Resistor String 16 7µs - -1%FSR
RS Stock No. 806-5395
Mfr. Part No.AD5648ARUZ-2
£15.39
Each
Units
14 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal Resistor String 16 7µs - -1%FSR
RS Stock No. 921-5131
Mfr. Part No.DAC8411IDCKT
£3.237
Each (On a Reel of 250)
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SC-70 Single - 2.5 V, 3.3 V, 5 V Supply Resistor String 6 10µs Unipolar 0.2%FSR
RS Stock No. 153-3494
Mfr. Part No.LTC1257CN8#PBF
£5.374
Each (In a Tube of 50)
Units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V External, Internal Resistor String 8 6µs Unipolar ±2LSB
RS Stock No. 806-5493
Mfr. Part No.AD5755ACPZ
£19.89
Each
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount LFCSP VQ Dual, Single - 0 → 10 V, 0 → 5 V External, Internal R-2R 64 18µs Bipolar, Unipolar ±0.03%FSR
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