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. 522-8152
Mfr. Part No.AD557JNZ
SGD20.19
Each
units
8 bit 1 Parallel Through Hole PDIP Single 1.25Msps 5 V Internal R-2R, Resistor String 16 1.5µs Unipolar -
RS Stock No. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
SGD1.388
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. 160-7973
Mfr. Part No.AD5641BKSZ-500RL7
SGD5.427
Each (On a Reel of 500)
units
14 bit 1 Serial (SPI/QSPI) Surface Mount SC-70 Single - 2.7 → 5.5 V External Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 887-7423
Mfr. Part No.MCP4728-E/UN
BrandMicrochip
SGD1.918
Each (In a Tube of 100)
units
12 bit - Serial (I2C) Surface Mount MSOP Single - 3.3 V, 5 V - Resistor String 10 - - -
RS Stock No. 823-7926
Mfr. Part No.MCP4811-E/SN
BrandMicrochip
SGD2.198
Each (In a Pack of 5)
units
10 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar -
RS Stock No. 738-6027
Mfr. Part No.MCP4921-E/P
BrandMicrochip
SGD3.395
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. 687-8736
Mfr. Part No.MCP4728-E/UN
BrandMicrochip
SGD2.90
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. 538-4139
Mfr. Part No.AD7846JNZ
SGD77.89
Each
units
16 bit 1 Parallel Through Hole PDIP Dual 143ksps - External Resistor String 28 9µs Bipolar, Unipolar ±16LSB
RS Stock No. 806-5349
Mfr. Part No.AD5361BSTZ
SGD77.13
Each
units
14 bit 6 Serial (SPI/QSPI/Microwire) Surface Mount LQFP Single - 2.5 → 5.5 V External, Internal Current Steering 52 30µs Bipolar, Unipolar ±20mV
RS Stock No. 165-2133
Mfr. Part No.MCP4821-E/P
BrandMicrochip
SGD2.97
Each (In a Tube of 60)
units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar 12LSB
RS Stock No. 887-7316
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
SGD0.986
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. 111-1138
Mfr. Part No.AD7541AKNZ
SGD27.519
Each (In a Tube of 20)
units
12 bit 1 Parallel Through Hole PDIP Single - 15 V External R-2R, Resistor String 18 0.6µs - ±5LSB
RS Stock No. 162-7122
Mfr. Part No.TLV5620CN
SGD3.488
Each (In a Tube of 25)
units
8 bit 4 Serial (SPI) Through Hole PDIP Single 48ksps 3.3 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 159-7839
Mfr. Part No.AD7837BRZ
SGD54.853
Each (In a Tube of 31)
units
12 bit 2 Parallel Surface Mount SOIC W Dual 250ksps - External R-2R, Resistor String 24 5µs Unipolar ±3LSB
RS Stock No. 770-9798
Mfr. Part No.MCP4821-E/P
BrandMicrochip
SGD3.805
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar 12LSB
RS Stock No. 889-5503
Mfr. Part No.MCP4822-E/MS
BrandMicrochip
SGD2.949
Each (In a Tube of 100)
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. 165-8939
Mfr. Part No.MAX536ACPE+
BrandMaxim
SGD127.527
Each (In a Tube of 10)
units
12 bit 4 Serial (SPI/QSPI/Microwire) Through Hole PDIP Dual - - External R-2R, Resistor String 16 3µs Unipolar ±1.5LSB
RS Stock No. 820-9334
Mfr. Part No.AD5641BKSZ-500RL7
SGD5.62
Each (In a Pack of 2)
units
14 bit 1 Serial (SPI/QSPI) Surface Mount SC-70 Single - 2.7 → 5.5 V External Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 662-1921
Mfr. Part No.TLV5620CN
SGD3.74
Each
units
8 bit 4 Serial (SPI) Through Hole PDIP Single 48ksps 3.3 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 522-9896
Mfr. Part No.AD7541AKNZ
SGD37.03
Each
units
12 bit 1 Parallel Through Hole PDIP Single - 15 V External R-2R, Resistor String 18 0.6µs - ±5LSB
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