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. 165-1906
Mfr. Part No.MCP4725A2T-E/CH
BrandMicrochip
TWD23.50
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. 378-1976
Mfr. Part No.DAC7614U
TWD582.00
Each
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. 145-1191
Mfr. Part No.LTC1446CN8#PBF
TWD293.30
Each (In a Tube of 50)
units
12 bit 2 Serial (SPI) Through Hole PDIP Single - 5 V Internal R-2R 8 14µs Unipolar -
RS Stock No. 402-803
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
TWD65.50
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
TWD31.90
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. 111-1101
Mfr. Part No.AD767JNZ
TWD1,083.60
Each (In a Tube of 15)
units
12 bit 1 Parallel Through Hole PDIP Dual - - External, Internal Current Steering 24 4µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 876-7199
Mfr. Part No.MCP4921-E/SN
BrandMicrochip
TWD48.00
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. 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. 545-7158
Mfr. Part No.LTC1446CN8#PBF
TWD516.00
Each
units
12 bit 2 Serial (SPI) Through Hole PDIP Single - 5 V Internal R-2R 8 14µs Unipolar -
RS Stock No. 145-7737
Mfr. Part No.AD7628KNZ
TWD280.30
Each (In a Tube of 18)
units
8 bit 2 Parallel Through Hole PDIP Single 2.9Msps 12 V, 15 V External R-2R, Resistor String 20 0.4µs - ±3LSB
RS Stock No. 761-9336
Mfr. Part No.LTC2606CDD#PBF
TWD236.00
Each
units
16 bit 1 Serial Surface Mount DFN Single 400kHz 2.7 → 5.5 V External R-2R, Resistor String 10 10µs - ±1LSB
RS Stock No. 160-1657
Mfr. Part No.AD5624RBRMZ-3
TWD295.00
Each (In a Tube of 50)
units
12 bit 4 Serial (SPI) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 4.5µs Bipolar ±1%FSR
RS Stock No. 146-0174
Mfr. Part No.MCP4922-E/ST
BrandMicrochip
TWD70.50
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. 157-8541
Mfr. Part No.AD9754ARUZ
TWD561.50
Each (In a Tube of 50)
units
14 bit 1 Parallel Surface Mount TSSOP Single 125Msps 5 V External, Internal - 28 0.035µs - ±5%FSR
RS Stock No. 709-4819
Mfr. Part No.AD660ARZ
TWD1,284.00
Each
units
16 bit 1 Parallel, Serial Surface Mount SOIC W Dual 167ksps - External, Internal Current Steering 24 13µs Bipolar, Unipolar ±0.1%FSR
RS Stock No. 165-1976
Mfr. Part No.MCP4911-E/SN
BrandMicrochip
TWD34.90
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. 159-7776
Mfr. Part No.AD7228ABNZ
TWD1,257.60
Each (In a Tube of 15)
units
8 bit 8 Parallel Through Hole PDIP Dual, Single 200ksps 5 V, 15 V External R-2R, Resistor String 24 7µs Unipolar ±4LSB
RS Stock No. 709-5973
Mfr. Part No.AD5724AREZ
TWD440.00
Each
units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Dual, Single 100ksps 5 V, 9 V, 12 V, 15 V External Resistor String 24 12µs Bipolar, Unipolar 0.08%FSR
RS Stock No. 111-2289
Mfr. Part No.AD5724AREZ
TWD377.40
Each (In a Tube of 62)
units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Dual, Single 100ksps 5 V, 9 V, 12 V, 15 V External Resistor String 24 12µs Bipolar, Unipolar 0.08%FSR
RS Stock No. 158-2570
Mfr. Part No.AD660ARZ
TWD1,144.10
Each (In a Tube of 31)
units
16 bit 1 Parallel, Serial Surface Mount SOIC W Dual 167ksps - External, Internal Current Steering 24 13µs Bipolar, Unipolar ±0.1%FSR