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. 378-2143
Mfr. Part No.DAC902E
HK$125.27
Each
units
12 bit 1 Parallel Surface Mount TSSOP Single 200Msps 5 V External, Internal Segmented 28 0.03µs Unipolar ±10%FSR
RS Stock No. 162-4167
Mfr. Part No.DAC7551IDRNT
HK$22.16
Each (On a Reel of 250)
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount USON Single 500ksps 3.3 V, 5 V External Resistor String 12 5µs Unipolar ±0.5%FSR
RS Stock No. 923-6927
Mfr. Part No.DAC7311IDCKT
HK$15.57
Each (On a Reel of 250)
units
12 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. 709-4576
Mfr. Part No.DAC7311IDCKT
HK$22.93
Each
units
12 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. 389-316
Mfr. Part No.DAC7551IDRNT
HK$32.09
Each
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount USON Single 500ksps 3.3 V, 5 V External Resistor String 12 5µs Unipolar ±0.5%FSR
RS Stock No. 732-1521
Mfr. Part No.DAC7568ICPW
HK$150.95
Each
units
12 bit 8 Serial (SPI) Surface Mount TSSOP Single - 5 V Internal Resistor String 16 10µs Unipolar ±0.2%FSR
RS Stock No. 921-5267
Mfr. Part No.DAC8568IBPW
HK$165.83
Each (In a Tube of 90)
units
16 bit 8 Serial (SPI) Surface Mount TSSOP Single - - Internal Resistor String 16 10µs Unipolar ±0.2%FSR
RS Stock No. 645-3696
Mfr. Part No.DAC0800LCM/NOPB
HK$16.69
Each (In a Pack of 5)
units
8 bit 1 Parallel Surface Mount SOIC Dual - - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 709-4579
Mfr. Part No.DAC5311IDCKT
HK$12.11
Each
units
8 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. 662-1912
Mfr. Part No.TLV5619CDW
HK$102.50
Each
units
12 bit 1 Parallel Surface Mount SOIC Single 1Msps 3 V, 5 V External Resistor String 20 3µs Unipolar ±0.5%FSR
RS Stock No. 121-9038
Mfr. Part No.DAC7725UB
HK$223.08
Each (In a Tube of 20)
units
12 bit 4 Parallel Surface Mount SOIC Dual, Single 100ksps 15 V External R-2R, Resistor String 28 10µs Bipolar, Unipolar ±2LSB
RS Stock No. 662-1568
Mfr. Part No.DAC7611U
HK$66.32
Each
units
12 bit 1 Serial (SPI) Surface Mount SOIC Single 132ksps 5 V Internal R-2R, Resistor String 8 7µs Unipolar -
RS Stock No. 162-7121
Mfr. Part No.TLV5619IPW
HK$92.59
Each (In a Tube of 70)
units
12 bit 1 Parallel Surface Mount TSSOP Single 1Msps 3 V, 5 V External Resistor String 20 3µs Unipolar ±0.5%FSR
RS Stock No. 742-2858
Mfr. Part No.DAC8162SDSCT
HK$85.11
Each
units
14 bit 2 Serial (SPI) Surface Mount SON Single - 5 V Internal Resistor String 10 10µs Unipolar ±0.2%FSR
RS Stock No. 709-3891
Mfr. Part No.DAC8728SPAG
HK$268.18
Each
units
16 bit 8 Parallel Surface Mount TQFP Dual, Single - 30.5 V, 33.5 V External Resistor String 64 10µs Bipolar, Unipolar ±15LSB
RS Stock No. 462-5495
Mfr. Part No.TLV5623ID
HK$25.54
Each
units
8 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 102ksps 3 V, 5 V External Resistor String 8 20µs Unipolar ±0.6%FSR
RS Stock No. 378-1926
Mfr. Part No.DAC7612U
HK$86.60
Each
units
12 bit 2 Serial (SPI) Surface Mount SOIC Single 130ksps 5 V Internal R-2R, Resistor String 8 7µs Unipolar -
RS Stock No. 662-1451
Mfr. Part No.DAC7512N/250
HK$39.96
Each
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOT-23 Single 95ksps 3.3 V, 5 V External Resistor String 6 12µs Unipolar -1.25%FSR
RS Stock No. 922-2631
Mfr. Part No.DAC8551IADGKT
HK$38.42
Each (On a Reel of 250)
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 200ksps 3.3 V, 5 V External Resistor String 8 12µs Unipolar ±0.5%FSR
RS Stock No. 407-331
Mfr. Part No.DAC088S085CIMT/NOPB
HK$30.44
Each
units
8 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 3.3 V, 5 V External Resistor String 16 4.5µs Unipolar -0.75%FSR