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. 879-3246
Mfr. Part No.MCP47FEB12A0-E/ST
BrandMicrochip
TWD56.00
Each (In a Pack of 5)
units
10 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. 146-0302
Mfr. Part No.MCP47FEB12A0-E/ST
BrandMicrochip
TWD46.10
Each (In a Tube of 100)
units
10 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. 823-0959
Mfr. Part No.MCP4716A1T-E/CH
BrandMicrochip
TWD22.60
Each (In a Pack of 10)
units
10 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 20.5LSB
RS Stock No. 165-2216
Mfr. Part No.MCP4716A1T-E/CH
BrandMicrochip
TWD21.30
Each (On a Reel of 3000)
units
10 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Bipolar 20.5LSB
RS Stock No. 876-7256
Mfr. Part No.MCP4922-E/SL
BrandMicrochip
TWD66.90
Each (In a Tube of 57)
units
12 bit 2 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Bipolar 1%FSR
RS Stock No. 402-910
Mfr. Part No.MCP4922-E/SL
BrandMicrochip
TWD79.50
Each (In a Pack of 2)
units
12 bit 2 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Bipolar 1%FSR
RS Stock No. 876-7199
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
TWD51.20
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 402-803
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
TWD67.50
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI/Microwire) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar 1%FSR
RS Stock No. 825-1060
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
TWD33.00
Each (In a Pack of 10)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single 3.4Msps 2.7 → 5.5 V External Resistor String 6 6µs Bipolar -
RS Stock No. 165-1906
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
TWD24.90
Each (On a Reel of 3000)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single 3.4Msps 2.7 → 5.5 V External Resistor String 6 6µs Bipolar -
RS Stock No. 823-3683
Mfr. Part No.MCP4911-E/SN
BrandMicrochip
TWD40.20
Each (In a Pack of 5)
units
10 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar -
RS Stock No. 738-6702
Mfr. Part No.MCP4922-E/ST
BrandMicrochip
TWD86.00
Each
units
12 bit 2 Serial (SPI) Surface Mount TSSOP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Unipolar 1%FSR
RS Stock No. 146-0259
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
TWD49.60
Each (In a Tube of 100)
units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 6µs Unipolar -
RS Stock No. 165-1976
Mfr. Part No.MCP4911-E/SN
BrandMicrochip
TWD36.60
Each (In a Tube of 100)
units
10 bit 1 Serial (SPI) Surface Mount SOIC Single - 2.7 → 5.5 V External Resistor String 8 4.5µs Bipolar -
RS Stock No. 823-7922
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
TWD65.80
Each (In a Pack of 5)
units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 6µs Unipolar -
RS Stock No. 146-0174
Mfr. Part No.MCP4922-E/ST
BrandMicrochip
TWD73.70
Each (In a Tube of 96)
units
12 bit 2 Serial (SPI) Surface Mount TSSOP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Unipolar 1%FSR
RS Stock No. 146-0330
Mfr. Part No.MCP48FVB22-E/UN
BrandMicrochip
TWD59.00
Each (In a Tube of 100)
units
12 bit 2 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. 165-1973
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
TWD49.60
Each (In a Tube of 100)
units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 6µs Unipolar -
RS Stock No. 738-7121
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
TWD29.60
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. 145-9099
Mfr. Part No.MCP47FEB01A0-E/ST
BrandMicrochip
TWD21.10
Each (In a Tube of 100)
units
8 bit 1 Serial (I2C) Surface Mount TSSOP Single - 1.8 → 5.5 V External, Internal Resistor String 8 6µs Bipolar 4.5LSB