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. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
$1.52
Each (In a Pack of 5)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23A Single - 3.3 V, 5 V External Resistor String 6 6µs Unipolar ±2%FSR
RS Stock No. 709-5881
Mfr. Part No.AD5412AREZ
$16.45
Each
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Dual, Single 40ksps 12 V, 15 V, 18 V, 24 V, 28 V External, Internal R-2R, Resistor String 24 40µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 912-7707
Mfr. Part No.AD5412AREZ
$13.09
Each (In a Tube of 62)
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Dual, Single 40ksps 12 V, 15 V, 18 V, 24 V, 28 V External, Internal R-2R, Resistor String 24 40µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 460-613
Mfr. Part No.DAC0808LCN/NOPB
$3.846
Each (In a Pack of 5)
units
8 bit 1 Parallel Through Hole MDIP Dual - - External R-2R, Resistor String 16 0.15µs Unipolar -
RS Stock No. 545-6565
Mfr. Part No.LTC1257CN8#PBF
$17.33
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. 887-7316
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
$1.12
Each (On a Reel of 3000)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23A Single - 3.3 V, 5 V External Resistor String 6 6µs Unipolar ±2%FSR
RS Stock No. 687-8736
Mfr. Part No.MCP4728-E/UN
BrandMicrochip
$2.99
Each
units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 3.3 V, 5 V Internal Resistor String 10 6µs Unipolar ±3%FSR
RS Stock No. 145-6025
Mfr. Part No.AD5311BRMZ
$7.51
Each (In a Tube of 50)
units
10 bit 1 Serial (I2C) Surface Mount MSOP Single 143ksps 3.3 V, 5 V External Resistor String 8 9µs Unipolar ±1.25%FSR
RS Stock No. 889-6048
Mfr. Part No.MCP4821-E/SN
BrandMicrochip
$2.938
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 660-5156
Mfr. Part No.DAC7625UB
$37.68
Each
units
12 bit 4 Parallel Surface Mount SOIC Dual, Single 100ksps 5 V External R-2R, Resistor String 28 10µs Bipolar, Unipolar ±8LSB
RS Stock No. 884-6955
Mfr. Part No.LTC1660CN#PBF
$19.93
Each
units
10 bit 8 Serial Through Hole PDIP Single - 2.7 → 5.5 V External, Internal - 16 30µs Bipolar ±15LSB
RS Stock No. 145-7849
Mfr. Part No.AD5671RBRUZ
$16.40
Each (In a Tube of 75)
units
12 bit 8 Serial (I2C) Surface Mount TSSOP Single - 2.7 → 5.5 V Internal - 20 8µs - ±0.14%FSR
RS Stock No. 876-7199
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
$2.28
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 786-3353
Mfr. Part No.AD5421BREZ
$18.30
Each
units
16 bit 1 Serial Surface Mount TSSOP Single - 5.5 → 52 V Internal - 28 50µs - 0.107%FSR
RS Stock No. 876-7256
Mfr. Part No.MCP4922-E/SL
BrandMicrochip
$3.371
Each (In a Tube of 57)
units
12 bit 2 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Bipolar 1%FSR
RS Stock No. 894-9007
Mfr. Part No.AD5671RBRUZ
$19.97
Each
units
12 bit 8 Serial (I2C) Surface Mount TSSOP Single - 2.7 → 5.5 V Internal - 20 8µs - ±0.14%FSR
RS Stock No. 738-6682
Mfr. Part No.MCP4821-E/SN
BrandMicrochip
$3.81
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 732-1395
Mfr. Part No.TLV5631IPW
$18.04
Each
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. 724-0126
Mfr. Part No.MCP4821-E/MS
BrandMicrochip
$3.63
Each
units
12 bit 1 Serial (SPI) Surface Mount MSOP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 921-5223
Mfr. Part No.TLV5631IPW
$15.72
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
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