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. 159-7638
Mfr. Part No.AD7545JNZ
PHP1,075.251
Each (In a Tube of 18)
units
12 bit 1 - Through Hole PDIP Single - 5 → 15 V External R-2R, Resistor String 20 2µs Bipolar, Unipolar -
RS Stock No. 823-0767
Mfr. Part No.MCP4725A1T-E/CH
BrandMicrochip
PHP44.741
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. 759-0812
Mfr. Part No.AD5663RBRMZ-5
PHP527.10
Each
units
16 bit 2 Serial (SPI) Surface Mount MSOP Single 220ksps 2.7 → 5.5 V External, Internal Resistor String 10 7µs Bipolar ±1%FSR
RS Stock No. 538-4139
Mfr. Part No.AD7846JNZ
PHP3,068.18
Each
units
16 bit 1 Parallel Through Hole PDIP Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 709-6253
Mfr. Part No.AD7249ANZ
PHP1,690.22
Each
units
12 bit 2 Serial (SPI) Through Hole PDIP Dual, Single 125ksps 12 V, 15 V External, Internal R-2R, Resistor String 16 10µs Bipolar, Unipolar ±6LSB
RS Stock No. 111-1106
Mfr. Part No.AD7545AKNZ
PHP1,248.018
Each (In a Tube of 18)
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V, 15 V External R-2R, Resistor String 20 1µs - ±4LSB
RS Stock No. 155-6760
Mfr. Part No.LTC1660CGN#PBF
PHP492.967
Each (In a Tube of 100)
units
10 bit 8 Serial Surface Mount SSOP Single - 2.7 → 5.5 V Internal R-2R, Resistor String 16 30µs Unipolar ±3LSB
RS Stock No. 887-7316
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
PHP36.984
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. 522-8590
Mfr. Part No.AD7226KNZ
PHP2,643.90
Each
units
8 bit 4 Parallel Through Hole PDIP Dual, Single 143ksps 15 V External R-2R, Resistor String 20 20µs Unipolar ±1.5LSB
RS Stock No. 786-9859
Mfr. Part No.LTC1660CGN#PBF
PHP667.38
Each
units
10 bit 8 Serial Surface Mount SSOP Single - 2.7 to 5.5 V Internal R-2R, Resistor String 16 30µs Unipolar ±3LSB
RS Stock No. 709-6821
Mfr. Part No.AD7846JPZ
PHP5,184.27
Each
units
16 bit 1 Parallel Surface Mount PLCC Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 159-7615
Mfr. Part No.AD5663RBRMZ-5
PHP391.762
Each (In a Tube of 50)
units
16 bit 2 Serial (SPI) Surface Mount MSOP Single 220ksps 2.7 → 5.5 V External, Internal Resistor String 10 7µs Bipolar ±1%FSR
RS Stock No. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
PHP48.934
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. 709-6834
Mfr. Part No.AD7846KPZ
PHP5,953.02
Each
units
16 bit 1 Parallel Surface Mount PLCC Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 921-5223
Mfr. Part No.TLV5631IPW
PHP466.178
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. 165-8949
Mfr. Part No.MAX528CPP+
PHP1,106.235
Each (In a Tube of 18)
units
8 bit 8 Serial (SPI) Through Hole PDIP Dual, Single - 12 V External R-2R, Resistor String 20 3µs Unipolar ±0.5LSB
RS Stock No. 912-7823
Mfr. Part No.AD7249ANZ
PHP2,818.939
Each (In a Tube of 25)
units
12 bit 2 Serial (SPI) Through Hole PDIP Dual, Single 125ksps 12 V, 15 V External, Internal R-2R, Resistor String 16 10µs Bipolar, Unipolar ±6LSB
RS Stock No. 622-9392
Mfr. Part No.MAX517BCPA+
PHP308.70
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. 111-2213
Mfr. Part No.AD7846JNZ
PHP5,340.308
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. 758-9752
Mfr. Part No.AD7224LNZ
PHP1,026.03
Each
units
8 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 14.25 → 15.75 V External R-2R, Resistor String 18 7µs Bipolar, Unipolar ±3/2LSB
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