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. 146-0302
Mfr. Part No.MCP47FEB12A0-E/ST
BrandMicrochip
TWD43.20
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. 879-3246
Mfr. Part No.MCP47FEB12A0-E/ST
BrandMicrochip
TWD57.00
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. 647-9929
Mfr. Part No.DAC0808LCM/NOPB
TWD82.40
Each (In a Pack of 5)
units
8 bit 1 Parallel Surface Mount SOIC Dual - - External R-2R, Resistor String 16 0.15µs Unipolar -
RS Stock No. 145-0836
Mfr. Part No.TLC5620CD
TWD180.00
Each (In a Tube of 50)
units
8 bit 4 Serial (SPI) Surface Mount SOIC Single 48ksps 5 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 356-7045
Mfr. Part No.TLC5620CD
TWD212.00
Each
units
8 bit 4 Serial (SPI) Surface Mount SOIC Single 48ksps 5 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 660-5112
Mfr. Part No.DAC712U
TWD1,083.00
Each
units
16 bit 1 Parallel Surface Mount SOIC Dual 100ksps - Internal R-2R, Resistor String 28 6µs Bipolar ±0.2%FSR
RS Stock No. 121-9037
Mfr. Part No.DAC712U
TWD968.00
Each (In a Tube of 20)
units
16 bit 1 Parallel Surface Mount SOIC Dual 100ksps - Internal R-2R, Resistor String 28 6µs Bipolar ±0.2%FSR
RS Stock No. 161-0640
Mfr. Part No.AD7542JNZ
TWD1,196.60
Each (In a Tube of 25)
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V External R-2R, Resistor String 16 2µs - ±4LSB
RS Stock No. 402-910
Mfr. Part No.MCP4922-E/SL
BrandMicrochip
TWD93.50
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. 162-7120
Mfr. Part No.TLV5619CDW
TWD333.30
Each (In a Tube of 25)
units
12 bit 1 Parallel Surface Mount SOIC Single 1Msps 3 V, 5 V External Resistor String 20 3µs Unipolar ±0.5%FSR
RS Stock No. 823-0959
Mfr. Part No.MCP4716A1T-E/CH
BrandMicrochip
TWD26.40
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. 876-7256
Mfr. Part No.MCP4922-E/SL
BrandMicrochip
TWD78.20
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. 662-1912
Mfr. Part No.TLV5619CDW
TWD4.97
Each
units
12 bit 1 Parallel Surface Mount SOIC Single 1Msps 3 V, 5 V External Resistor String 20 3µs Unipolar ±0.5%FSR
RS Stock No. 111-1118
Mfr. Part No.AD7224KNZ
TWD521.40
Each (In a Tube of 20)
units
8 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 15 V External R-2R, Resistor String 18 20µs Unipolar ±1.5LSB
RS Stock No. 522-9379
Mfr. Part No.AD7224KNZ
TWD567.00
Each
units
8 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 15 V External R-2R, Resistor String 18 20µs Unipolar ±1.5LSB
RS Stock No. 522-9240
Mfr. Part No.AD7542JNZ
TWD1,339.00
Each
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V External R-2R, Resistor String 16 2µs - ±4LSB
RS Stock No. 165-2216
Mfr. Part No.MCP4716A1T-E/CH
BrandMicrochip
TWD20.60
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. 100-3824
Mfr. Part No.DAC7614U
TWD454.20
Each (In a Tube of 40)
units
12 bit 4 Serial Surface Mount SOIC Dual, Single 89ksps 5 V External R-2R, Resistor String 16 10µs Bipolar, Unipolar ±8LSB
RS Stock No. 697-6940
Mfr. Part No.AD5764RBSUZ
TWD1,598.00
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. 876-7199
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
TWD4.97
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