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
New
RS Stock No. 190-5655
Mfr. Part No.MAX5815BAUD+
BrandMaxim
MYR21.50
Each (In a Pack of 2)
units
12 bit 4 - Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal - 14 4.5 (Typ.)µs Bipolar, Unipolar ±0.5%FSR
RS Stock No. 759-1020
Mfr. Part No.AD7545JNZ
MYR90.68
Each
units
12 bit 1 - Through Hole PDIP Single - 5 → 15 V External R-2R, Resistor String 20 2µs Bipolar, Unipolar -
RS Stock No. 660-4232
Mfr. Part No.DAC811KU
MYR139.21
Each
units
12 bit 1 Parallel Surface Mount SOIC Dual 250ksps - Internal R-2R, Resistor String 28 4µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 178-1174
Mfr. Part No.BU2507FV-E2
BrandROHM
MYR8.806
Each (In a Pack of 5)
units
10 bit 6 - Surface Mount SSOP-B Single - 4.5 → 5.5 V Internal R-2R 14 20µs - 1 (Differential) LSB, 3.5 (Integral) LSB
RS Stock No. 799-7623
Mfr. Part No.MAX526DCWG+
BrandMaxim
MYR263.17
Each
units
12 bit 4 Parallel Surface Mount SOIC Dual - - External R-2R 24 3µs Bipolar, Unipolar -
RS Stock No. 157-8545
Mfr. Part No.AD7847BRZ
MYR139.43
Each (In a Tube of 31)
units
12 bit 2 Parallel Surface Mount SOIC W Dual 250ksps - External R-2R, Resistor String 24 5µs Unipolar ±3LSB
RS Stock No. 162-4171
Mfr. Part No.DAC7621EB
MYR27.55
Each (In a Tube of 70)
units
12 bit 1 Parallel Surface Mount SSOP Single 143ksps 5 V Internal R-2R, Resistor String 20 7µs Unipolar -
RS Stock No. 497-2763
Mfr. Part No.AD5306ARUZ
MYR21.91
Each
units
8 bit 4 Serial (I2C) Surface Mount TSSOP Single 167ksps 3.3 V, 5 V External Resistor String 16 8µs Unipolar ±1.25%FSR
RS Stock No. 662-1486
Mfr. Part No.DAC8551IADGKT
MYR24.56
Each
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single 200ksps 3.3 V, 5 V External Resistor String 8 12µs Unipolar ±0.5%FSR
RS Stock No. 159-7906
Mfr. Part No.AD8804ANZ
MYR37.561
Each (In a Tube of 18)
units
8 bit 12 Serial (SPI) Through Hole PDIP Single 1.7Msps 3 V, 5 V External R-2R, Resistor String 20 0.6µs Unipolar ±1LSB
RS Stock No. 153-3494
Mfr. Part No.LTC1257CN8#PBF
MYR30.178
Each (In a Tube of 50)
units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V External, Internal Resistor String 8 6µs Unipolar ±2LSB
New
RS Stock No. 191-5289
Mfr. Part No.MAX5100AEUP+
BrandMaxim
MYR29.832
Each (In a Tube of 74)
units
8 bit 4 Parallel Surface Mount TSSOP Single - 2.7 → 5.5 V Internal - 20 6µs Bipolar, Unipolar -
RS Stock No. 145-6055
Mfr. Part No.AD8802ARUZ
MYR32.39
Each (In a Tube of 75)
units
8 bit 12 Serial (SPI) Surface Mount TSSOP Single 1.7Msps 3 → 5 V Internal R-2R 20 0.6µs - ±1LSB
RS Stock No. 461-6233
Mfr. Part No.DAC7741YB/250
MYR81.08
Each
units
16 bit 1 Parallel Surface Mount LQFP Dual 200ksps - External, Internal R-2R, Resistor String 48 5µs Bipolar, Unipolar ±0.25%FSR
RS Stock No. 761-9336
Mfr. Part No.LTC2606CDD#PBF
MYR25.00
Each
units
16 bit 1 Serial Surface Mount DFN Single 400kHz 2.7 → 5.5 V External R-2R, Resistor String 10 10µs - ±1LSB
New
RS Stock No. 189-7409
Mfr. Part No.MAX532ACWE+
BrandMaxim
MYR74.511
Each (In a Tube of 46)
units
12 bit 2 Serial (SPI/QSPI) Surface Mount SOIC Dual - - External R-2R, Resistor String 16 2.5µs Unipolar ±4LSB
RS Stock No. 111-1099
Mfr. Part No.DAC08CPZ
MYR11.629
Each (In a Tube of 25)
units
8 bit 1 Parallel Through Hole PDIP Dual 11.8Msps - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 813-6425
Mfr. Part No.DAC7678SRGET
MYR41.31
Each
units
12 bit 8 Serial Surface Mount VQFN Single - 2.7 → 5.5 V External, Internal Resistor String 24 12µs Bipolar ±0.2%FSR
RS Stock No. 160-3319
Mfr. Part No.AD5675ARUZ
MYR59.18
Each (In a Tube of 75)
units
16 bit 8 Serial (I2C) Surface Mount TSSOP Single - 2.7 → 5.5 V Internal - 20 8µs - ±0.28%FSR
RS Stock No. 813-6419
Mfr. Part No.DAC7578SPW
MYR40.95
Each
units
12 bit 8 Serial Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal Resistor String 16 12µs Bipolar ±0.2%FSR
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