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. 759-0822
Mfr. Part No.AD5667RBRMZ-2
SGD15.47
Each
units
16 bit 2 Serial Surface Mount MSOP Single 250ksps 2.7 → 5.5 V External, Internal Resistor String 10 7µs Unipolar ±1%FSR
RS Stock No. 889-5831
Mfr. Part No.MCP4822-E/P
BrandMicrochip
SGD3.77
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. 681-1092
Mfr. Part No.MCP4822-E/P
BrandMicrochip
SGD4.44
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. 726-3882
Mfr. Part No.MCP4911-E/P
BrandMicrochip
SGD2.04
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
RS Stock No. 146-0165
Mfr. Part No.MCP4911-E/P
BrandMicrochip
SGD1.70
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. 894-9010
Mfr. Part No.AD5676BRUZ
SGD29.93
Each
units
16 bit 8 Serial Surface Mount TSSOP Single - 2.7 → 5.5 V External - 20 8µs - ±0.14%FSR
RS Stock No. 402-881
Mfr. Part No.MCP4922-E/P
BrandMicrochip
SGD3.88
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. 876-7240
Mfr. Part No.MCP4922-E/P
BrandMicrochip
SGD3.30
Each (In a Tube of 30)
units
12 bit 2 Serial (SPI/Microwire) Through Hole PDIP Single - 2.7 → 5.5 V External Resistor String 14 4.5µs Bipolar -
RS Stock No. 759-0840
Mfr. Part No.AD5754BREZ
SGD35.90
Each
units
16 bit 4 Serial (SPI) Surface Mount TSSOP Dual, Single 100ksps 2.7 → 5.5 V External Resistor String 24 12µs Bipolar, Unipolar -
RS Stock No. 884-6955
Mfr. Part No.LTC1660CN#PBF
SGD19.18
Each
units
10 bit 8 Serial Through Hole PDIP Single - 2.7 → 5.5 V External, Internal - 16 30µs Bipolar ±15LSB
RS Stock No. 522-8152
Mfr. Part No.AD557JNZ
SGD22.69
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. 460-613
Mfr. Part No.DAC0808LCN/NOPB
SGD3.07
Each (In a Pack of 5)
units
8 bit 1 Parallel Through Hole MDIP Dual - - External R-2R, Resistor String 16 0.15µs Unipolar -
RS Stock No. 738-6027
Mfr. Part No.MCP4921-E/P
BrandMicrochip
SGD2.92
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. 162-4996
Mfr. Part No.DAC084S085CIMM/NOPB
SGD1.499
Each (On a Reel of 1000)
units
8 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 10 4.5µs Unipolar -0.75%FSR
RS Stock No. 165-2133
Mfr. Part No.MCP4821-E/P
BrandMicrochip
SGD2.84
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. 697-7458
Mfr. Part No.AD9767ASTZ
SGD39.06
Each
units
14 bit 2 Parallel Surface Mount LQFP Single 125Msps 5 V External, Internal Segmented 48 0.035µs Unipolar ±5%FSR
RS Stock No. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
SGD1.45
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. 522-9240
Mfr. Part No.AD7542JNZ
SGD61.52
Each
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V External R-2R, Resistor String 16 2µs - ±4LSB
RS Stock No. 356-7045
Mfr. Part No.TLC5620CD
SGD10.54
Each
units
8 bit 4 Serial (SPI) Surface Mount SOIC Single 48ksps 5 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 200-6640
Mfr. Part No.TLC5628CN
SGD11.08
Each
units
8 bit 8 Serial (SPI) Through Hole PDIP Single 45ksps 5 V External Resistor String 16 10µs Unipolar ±60mV
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