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. 111-2213
Mfr. Part No.AD7846JNZ
£42.503
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. 158-0485
Mfr. Part No.AD5764RBSUZ
£34.493
Each (In a Tray of 250)
Units
16 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TQFP Dual - - External, Internal R-2R, Resistor String 32 10µs Bipolar ±0.02%FSR
RS Stock No. 496-9925
Mfr. Part No.AD9748ACPZ
£5.94
Each
Units
8 bit 1 Parallel Surface Mount LFCSP Single 210Msps 3.3 V External, Internal Segmented 32 0.011µs Unipolar ±0.5%FSR
RS Stock No. 669-6294
Mfr. Part No.MCP4822-E/MS
BrandMicrochip
£2.29
Each (In a Pack of 2)
Units
12 bit 2 Serial (SPI/Microwire) Surface Mount MSOP Single - 5 V Internal Resistor String 8 4.5µs Unipolar ±2%FSR
RS Stock No. 726-3876
Mfr. Part No.MCP4902-E/P
BrandMicrochip
£0.288
Each (In a Pack of 5)
Units
8 bit 2 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Unipolar -1%FSR
RS Stock No. 145-9359
Mfr. Part No.MCP4902-E/P
BrandMicrochip
£0.585
Each (In a Tube of 30)
Units
8 bit 2 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Unipolar -1%FSR
RS Stock No. 162-4166
Mfr. Part No.DAC121C085CIMM/NOPB
£0.924
Each (On a Reel of 1000)
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. 538-4139
Mfr. Part No.AD7846JNZ
£45.26
Each
Units
16 bit 1 Parallel Through Hole PDIP Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 517-123
Mfr. Part No.DAC121C085CIMM/NOPB
£1.74
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. 697-6940
Mfr. Part No.AD5764RBSUZ
£38.42
Each
Units
16 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TQFP Dual - - External, Internal R-2R, Resistor String 32 10µs Bipolar ±0.02%FSR
RS Stock No. 709-5941
Mfr. Part No.AD5627BRMZ
£4.64
Each
Units
12 bit 2 Serial (I2C) Surface Mount MSOP Single 333ksps 3.3 V, 5 V External Resistor String 10 4.5µs Unipolar ±1%FSR
RS Stock No. 912-7725
Mfr. Part No.AD5627BRMZ
£3.866
Each (In a Tube of 50)
Units
12 bit 2 Serial (I2C) Surface Mount MSOP Single 333ksps 3.3 V, 5 V External Resistor String 10 4.5µs Unipolar ±1%FSR
RS Stock No. 161-0566
Mfr. Part No.AD9748ACPZ
£4.172
Each (In a Tray of 490)
Units
8 bit 1 Parallel Surface Mount LFCSP Single 210Msps 3.3 V External, Internal Segmented 32 0.011µs Unipolar ±0.5%FSR
RS Stock No. 461-6306
Mfr. Part No.DAC8532IDGK
£10.31
Each
Units
16 bit 2 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 93ksps 3.3 V, 5 V External Resistor String 8 10µs Unipolar -1%FSR
RS Stock No. 145-5742
Mfr. Part No.DAC7724UB
£19.525
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. 813-6438
Mfr. Part No.DAC8564IAPW
£10.75
Each
Units
16 bit 4 Serial (SPI) Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal Resistor String 16 12µs Bipolar ±0.5%FSR
RS Stock No. 823-0767
Mfr. Part No.MCP4725A1T-E/CH
BrandMicrochip
£0.732
Each (In a Pack of 10)
Units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar -
RS Stock No. 121-8521
Mfr. Part No.TLC7226CN
£4.152
Each (In a Tube of 20)
Units
- - - - - - - - - - - - - -
RS Stock No. 758-9626
Mfr. Part No.AD5422AREZ
£9.99
Each
Units
16 bit - Serial (SPI) Surface Mount TSSOP Dual, Single 40ksps 2.7 → 5.5 V External R-2R, Resistor String 24 25µs Bipolar, Unipolar +0.007%FSR
RS Stock No. 346-7030
Mfr. Part No.TLC7226CN
£4.75
Each
Units
8 bit 4 Parallel Through Hole PDIP Dual, Single 143ksps 15 V External R-2R, Resistor String 20 20µs Bipolar, Unipolar ±2LSB
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