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 TVs (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$118.55
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. 923-6927
Mfr. Part No.DAC7311IDCKT
HK$14.754
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. 162-4167
Mfr. Part No.DAC7551IDRNT
HK$21.052
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. 709-4576
Mfr. Part No.DAC7311IDCKT
HK$20.60
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$27.21
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. 346-7046
Mfr. Part No.TLC7528CN
HK$34.64
Each
units
8 bit 2 Parallel Through Hole PDIP Single 10Msps 5 V, 15 V External R-2R, Resistor String 20 0.1µs - 2.5LSB
RS Stock No. 162-4366
Mfr. Part No.TLC7528CN
HK$35.888
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
RS Stock No. 923-2278
Mfr. Part No.DAC813JU
HK$209.967
Each (In a Tube of 20)
units
12 bit 1 Parallel Surface Mount SOIC Dual 167ksps - External, Internal R-2R, Resistor String 28 6µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 121-9038
Mfr. Part No.DAC7725UB
HK$196.753
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. 921-5223
Mfr. Part No.TLV5631IPW
HK$81.492
Each (In a Tube of 70)
units
10 bit 8 Serial (SPI) Surface Mount TSSOP Single 283ksps 5 V External Resistor String 20 7µs Unipolar ±0.6%FSR
RS Stock No. 162-4260
Mfr. Part No.PCM1744U
HK$39.039
Each (In a Tube of 50)
units
24 bit 2 Serial Surface Mount SOIC Single 96ksps 5 V - Delta Sigma 14 - Bipolar ±10%FSR
RS Stock No. 796-7975
Mfr. Part No.DAC0832LCWM/NOPB
HK$42.38
Each (In a Pack of 2)
units
8 bit 1 Parallel Surface Mount SOIC Single - 5 → 15 V dc Internal R-2R 20 1µs Bipolar 0.05%FSR
RS Stock No. 100-3884
Mfr. Part No.TLV5604ID
HK$76.725
Each (In a Tube of 40)
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. 662-1836
Mfr. Part No.TLC7528IN
HK$50.71
Each
units
8 bit 2 Parallel Through Hole PDIP Single 10Msps 5 V, 15 V External R-2R, Resistor String 20 0.1µs - 2.5LSB
RS Stock No. 461-6312
Mfr. Part No.DAC8534IPW
HK$151.95
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. 162-7256
Mfr. Part No.DAC8568ICPW
HK$187.162
Each (In a Tube of 90)
units
16 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 3.3 V, 5 V External, Internal Resistor String 16 10µs Unipolar ±0.2%FSR
RS Stock No. 732-1635
Mfr. Part No.DAC7568IAPW
HK$138.31
Each
units
12 bit 8 Serial (SPI) Surface Mount TSSOP Single - 5 V Internal Resistor String 14 10µs Unipolar ±0.2%FSR
RS Stock No. 921-5226
Mfr. Part No.DAC7724N
HK$217.56
Each (In a Tube of 37)
units
12 bit 4 Parallel Surface Mount PLCC Dual, Single 100ksps 15 V External R-2R, Resistor String 28 10µs Bipolar ±2LSB
RS Stock No. 922-4703
Mfr. Part No.TLV5638CD
HK$82.718
Each (In a Tube of 75)
units
12 bit 2 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 233ksps 3 V, 5 V External, Internal Resistor String 8 7µs Unipolar ±0.6%FSR
RS Stock No. 921-2886
Mfr. Part No.DAC7678SPW
HK$82.75
Each (In a Tube of 90)
units
12 bit 8 Serial Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal Resistor String 16 12µs Bipolar ±0.2%FSR