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. 111-1110
Mfr. Part No.AD7533LNZ
SGD17.581
Each (In a Tube of 25)
units
10 bit 1 Parallel Through Hole PDIP Single 1.7Msps 15 V External R-2R, Resistor String 16 0.8µs - ±1%FSR
RS Stock No. 912-9955
Mfr. Part No.AD5421BREZ
SGD14.279
Each (In a Tube of 50)
units
16 bit 1 Serial Surface Mount TSSOP Single - 5.5 → 52 V Internal - 28 50µs - 0.107%FSR
RS Stock No. 517-123
Mfr. Part No.DAC121C085CIMM/NOPB
SGD3.15
Each
units
12 bit 1 Serial (I2C) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 8 8.5µs Unipolar -0.7%FSR
RS Stock No. 169-8931
Mfr. Part No.BH2219FVM-TR
BrandROHM
SGD0.846
Each (On a Reel of 3000)
units
8 bit 2 Serial (3 Wire) Surface Mount MSOP Single - 2.7 → 5.5 V External R-2R 8 100µs Unipolar -
RS Stock No. 158-0475
Mfr. Part No.AD5318ARUZ
SGD11.437
Each (In a Tube of 96)
units
10 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single 167ksps 3.3 V, 5 V External Resistor String 16 9µs Unipolar ±1.25%FSR
RS Stock No. 806-5392
Mfr. Part No.AD5629RBRUZ-2
SGD24.60
Each
units
12 bit 8 Serial (I2C) Surface Mount TSSOP Single - 2.7 → 5.5 V Internal Resistor String 16 7µs - -1%FSR
RS Stock No. 165-9566
Mfr. Part No.MAX5322EAI+
SGD29.897
Each (In a Tube of 46)
units
12 bit 2 Serial (SPI/QSPI/Microwire) Surface Mount SSOP Dual, Single - 15 V External R-2R 28 10µs Bipolar, Unipolar -
RS Stock No. 523-6715
Mfr. Part No.AD7537JNZ
SGD43.06
Each
units
12 bit 2 Parallel Through Hole PDIP Single 667ksps 12 V, 15 V External R-2R, Resistor String 24 1.5µs - ±6LSB
RS Stock No. 145-7385
Mfr. Part No.DAC312HSZ
SGD12.919
Each (In a Tube of 37)
units
12 bit 1 Parallel Surface Mount SOIC W Dual - - External R-2R, Resistor String 20 0.5µs Unipolar -
RS Stock No. 796-8893
Mfr. Part No.AD5601BKSZ-500RL7
SGD2.198
Each (In a Pack of 5)
units
8 bit 1 Serial (SPI) Surface Mount SC-70 Single - 2.7 → 5.5 V Internal Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 462-6842
Mfr. Part No.TLV5604ID
SGD16.14
Each
units
10 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 102ksps 3 V, 5 V External Resistor String 16 18µs Unipolar ±0.6%FSR
RS Stock No. 522-9521
Mfr. Part No.AD7548JNZ
SGD38.96
Each
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V, 12 V, 15 V External R-2R, Resistor String 20 1.5µs - ±6LSB
RS Stock No. 799-7645
Mfr. Part No.MAX5322EAI+
SGD21.93
Each
units
12 bit 2 Serial (SPI/QSPI/Microwire) Surface Mount SSOP Dual, Single - 15 V External R-2R 28 10µs Bipolar, Unipolar -
RS Stock No. 912-6574
Mfr. Part No.AD5662BRMZ-1
SGD8.418
Each (In a Tube of 50)
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 1.2Msps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.5%FSR
RS Stock No. 912-7842
Mfr. Part No.AD7537KNZ
SGD49.01
Each (In a Tube of 15)
units
12 bit 2 Parallel Through Hole PDIP Single 667ksps 12 V, 15 V External R-2R, Resistor String 24 1.5µs - ±3LSB
RS Stock No. 798-7838
Mfr. Part No.MAX5541ESA+
SGD13.32
Each
units
16 bit 1 Serial (SPI/QSPI) Surface Mount SOIC Single - 5 V - - 8 1µs Unipolar -
RS Stock No. 810-7714
Mfr. Part No.AD5683RBRMZ
SGD8.58
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. 496-7660
Mfr. Part No.AD5443YRMZ
SGD7.32
Each
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 2.5Msps 3.3 V, 5 V External R-2R, Resistor String 10 0.16µs - ±10mV
RS Stock No. 761-9339
Mfr. Part No.LTC2622IMS8#PBF
SGD8.63
Each
units
12 bit 2 Serial (SPI) Surface Mount MSOP Single 50MHz 2.5 → 5.5 V External R-2R, Resistor String 8 10µs - ±0.5LSB
RS Stock No. 697-6896
Mfr. Part No.AD5318ARUZ
SGD12.91
Each
units
10 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single 167ksps 3.3 V, 5 V External Resistor String 16 9µs Unipolar ±1.25%FSR
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