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. 681-1092
Mfr. Part No.MCP4822-E/P
BrandMicrochip
$5.74
Each
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V Internal Resistor String 8 4.5µs Unipolar ±2%FSR
RS Stock No. 889-5831
Mfr. Part No.MCP4822-E/P
BrandMicrochip
$3.372
Each (In a Tube of 60)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 5 V Internal Resistor String 8 4.5µs Unipolar ±2%FSR
RS Stock No. 889-5847
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
$0.77
Each (On a Reel of 3000)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Unipolar 82LSB
RS Stock No. 738-7121
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
$1.53
Each (In a Pack of 5)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Unipolar 82LSB
RS Stock No. 726-3898
Mfr. Part No.MCP4812-E/P
BrandMicrochip
$3.835
Each (In a Pack of 2)
units
10 bit 2 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 165-2133
Mfr. Part No.MCP4821-E/P
BrandMicrochip
$3.133
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. 770-9798
Mfr. Part No.MCP4821-E/P
BrandMicrochip
$3.39
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. 879-3255
Mfr. Part No.MCP47FEB22A0-E/ST
BrandMicrochip
$3.672
Each (In a Pack of 5)
units
12 bit 2 Serial (I2C) Surface Mount TSSOP Single - 1.8 → 5.5 V External, Internal Resistor String 8 6µs Bipolar 4.5LSB
RS Stock No. 145-9395
Mfr. Part No.MCP47FEB22A0-E/ST
BrandMicrochip
$3.038
Each (In a Tube of 100)
units
12 bit 2 Serial (I2C) Surface Mount TSSOP Single - 1.8 → 5.5 V External, Internal Resistor String 8 6µs Bipolar 4.5LSB
RS Stock No. 145-9360
Mfr. Part No.MCP4812-E/P
BrandMicrochip
$2.608
Each (In a Tube of 60)
units
10 bit 2 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
RS Stock No. 165-2212
Mfr. Part No.MCP4706A2T-E/CH
BrandMicrochip
$0.93
Each (On a Reel of 3000)
units
8 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 5.2LSB
RS Stock No. 738-6027
Mfr. Part No.MCP4921-E/P
BrandMicrochip
$3.73
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. 889-5531
Mfr. Part No.MCP4921-E/P
BrandMicrochip
$2.227
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. 823-0947
Mfr. Part No.MCP4706A2T-E/CH
BrandMicrochip
$0.96
Each (In a Pack of 10)
units
8 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 5.2LSB
RS Stock No. 916-3680
Mfr. Part No.MCP48FVB21-E/UN
BrandMicrochip
$2.064
Each (In a Pack of 5)
units
12 bit 1 Serial (SPI) Surface Mount MSOP Single - 1.8 → 2.7 V, 2.7 → 5.5 V Internal Resistor String 10 7.8µs Bipolar 70LSB
RS Stock No. 145-9160
Mfr. Part No.MCP48FVB21-E/UN
BrandMicrochip
$1.61
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI) Surface Mount MSOP Single - 1.8 → 2.7 V, 2.7 → 5.5 V Internal Resistor String 10 7.8µs Bipolar 70LSB
RS Stock No. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
$5.00
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. 146-0165
Mfr. Part No.MCP4911-E/P
BrandMicrochip
$1.655
Each (In a Tube of 60)
units
10 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
$1.85
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. 726-3882
Mfr. Part No.MCP4911-E/P
BrandMicrochip
$2.038
Each (In a Pack of 5)
units
10 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR