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. 738-6027
Mfr. Part No.MCP4921-E/P
BrandMicrochip
PHP98.00
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V External Resistor String 8 4.5µs Unipolar 1%FSR
RS Stock No. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
PHP130.835
Each (In a Pack of 2)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 3 V, 5 V External Resistor String 14 4.5µs Unipolar 1%FSR
RS Stock No. 538-6422
Mfr. Part No.AD5543BRZ
PHP995.50
Each
units
16 bit 1 Serial (SPI) Surface Mount SOIC Single 2.47Msps 5 V External R-2R, Resistor String 8 0.5µs Unipolar ±4mV
RS Stock No. 912-7558
Mfr. Part No.AD5543BRZ
PHP781.094
Each (In a Tube of 98)
units
16 bit 1 Serial (SPI) Surface Mount SOIC Single 2.47Msps 5 V External R-2R, Resistor String 8 0.5µs Unipolar ±4mV
RS Stock No. 876-7240
Mfr. Part No.MCP4922-E/P
BrandMicrochip
PHP96.556
Each (In a Tube of 30)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Bipolar -
RS Stock No. 889-5531
Mfr. Part No.MCP4921-E/P
BrandMicrochip
PHP72.659
Each (In a Tube of 60)
units
12 bit 1 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V External Resistor String 8 4.5µs Unipolar 1%FSR
RS Stock No. 145-7729
Mfr. Part No.DAC7741YB/250
PHP784.59
Each (On a Reel of 250)
units
16 bit 1 Parallel Surface Mount LQFP Dual 200ksps - External, Internal R-2R, Resistor String 48 5µs Bipolar, Unipolar ±0.25%FSR
RS Stock No. 461-6233
Mfr. Part No.DAC7741YB/250
PHP1,006.24
Each
units
16 bit 1 Parallel Surface Mount LQFP Dual 200ksps - External, Internal R-2R, Resistor String 48 5µs Bipolar, Unipolar ±0.25%FSR
RS Stock No. 177-7118
Mfr. Part No.LTC1458CSW#PBF
PHP1,821.50
Each (In a Tube of 27)
units
12 bit 4 Serial (SPI) Surface Mount SOIC W Single - 5 V External, Internal R-2R 28 14µs Unipolar -
RS Stock No. 810-7714
Mfr. Part No.AD5683RBRMZ
PHP381.68
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. 858-0787
Mfr. Part No.LTC1458CSW#PBF
PHP1,030.32
Each
units
12 bit 4 Serial (SPI) Surface Mount SOIC W Single - 5 V External, Internal R-2R 28 14µs Unipolar -
RS Stock No. 160-4464
Mfr. Part No.AD5683RBRMZ
PHP283.70
Each (In a Tube of 50)
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. 121-9190
Mfr. Part No.DAC8501E/250
PHP258.534
Each (On a Reel of 250)
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 93ksps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.25%FSR
RS Stock No. 159-7843
Mfr. Part No.AD7846KNZ
PHP6,743.608
Each (In a Tube of 13)
units
16 bit 1 Parallel Through Hole PDIP Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 662-1473
Mfr. Part No.DAC8501E/250
PHP394.28
Each
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 93ksps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.25%FSR
RS Stock No. 759-0800
Mfr. Part No.AD565AJRZ
PHP1,935.57
Each
units
12 bit 1 - Surface Mount SOIC Dual 4Msps - - Current Steering 28 0.25µs Bipolar ±1/2LSB
RS Stock No. 709-6825
Mfr. Part No.AD7846KNZ
PHP6,743.70
Each
units
16 bit 1 Parallel Through Hole PDIP Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 540-3993
Mfr. Part No.MAX517ACPA+
PHP379.58
Each
units
8 bit 1 Serial (I2C) Through Hole PDIP Single - 5 V External R-2R, Resistor String 8 6µs Unipolar ±18mV
RS Stock No. 806-5288
Mfr. Part No.AD5063BRMZ-1
PHP625.33
Each
units
16 bit 1 Serial (SPI) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal R-2R, Resistor String 10 1µs Bipolar ±800µV
RS Stock No. 100-3823
Mfr. Part No.DAC7612U
PHP325.766
Each (In a Tube of 75)
units
12 bit 2 Serial (SPI) Surface Mount SOIC Single 130ksps 5 V Internal R-2R, Resistor String 8 7µs Unipolar -
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