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. 708-9987
Mfr. Part No.AD7835ASZ
kr 514,35
Each
Units
14 bit 4 Parallel Surface Mount MQFP Dual 100ksps - External R-2R, Resistor String 44 10µs Bipolar, Unipolar ±5mV
RS Stock No. 669-6307
Mfr. Part No.TC1320EOA
BrandMicrochip
kr 10,348
Each (In a Pack of 5)
Units
8 bit 1 Serial (I2C) Surface Mount SOIC Single - 3.3 V, 5 V External Current Steering 8 10µs Unipolar ±3%FSR
RS Stock No. 158-1981
Mfr. Part No.AD5662ARJZ-2REEL7
kr 36,218
Each (On a Reel of 3000)
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOT-23 Single 1.2Msps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.5%FSR
RS Stock No. 858-0771
Mfr. Part No.LTC1452CS8#PBF
kr 94,42
Each
Units
12 bit 1 Serial (SPI) Surface Mount SOIC Single - 3 → 5 V External, Internal R-2R 8 14µs Bipolar -
RS Stock No. 157-8499
Mfr. Part No.DAC8800FPZ
kr 221,617
Each (In a Tube of 18)
Units
8 bit 8 Serial (SPI) Through Hole PDIP Dual, Single 1.25Msps 12 V External - 20 2µs Bipolar, Unipolar ±0.5LSB
RS Stock No. 523-0004
Mfr. Part No.AD420ANZ-32
kr 259,22
Each
Units
16 bit 1 Serial (SPI/Microwire) Through Hole PDIP Single 400sps 15 V, 18 V, 24 V External, Internal Delta Sigma 24 3000µs Unipolar -
RS Stock No. 111-1142
Mfr. Part No.AD420ANZ-32
kr 235,697
Each (In a Tube of 15)
Units
16 bit 1 Serial (SPI/Microwire) Through Hole PDIP Single 400sps 15 V, 18 V, 24 V External, Internal Delta Sigma 24 3000µs Unipolar -
RS Stock No. 159-8072
Mfr. Part No.AD5668ARUZ-2
kr 150,001
Each (In a Tube of 96)
Units
16 bit 8 Serial (SPI) Surface Mount TSSOP Single 95ksps 2.7 → 5.5 V Internal Resistor String 16 7µs - -1%FSR
RS Stock No. 165-4795
Mfr. Part No.TC1320EOA
BrandMicrochip
kr 10,339
Each (In a Tube of 100)
Units
8 bit 1 Serial (I2C) Surface Mount SOIC Single - 3.3 V, 5 V External Current Steering 8 10µs Unipolar ±3%FSR
RS Stock No. 162-4260
Mfr. Part No.PCM1744U
kr 26,547
Each (In a Tube of 50)
Units
24 bit 2 Serial Surface Mount SOIC Single 96ksps 5 V - Delta Sigma 14 - Bipolar ±10%FSR
RS Stock No. 758-9676
Mfr. Part No.AD5668ARUZ-2
kr 172,38
Each
Units
16 bit 8 Serial (SPI) Surface Mount TSSOP Single 95ksps 2.7 → 5.5 V Internal Resistor String 16 7µs - -1%FSR
RS Stock No. 913-0018
Mfr. Part No.AD5641AKSZ-500RL7
kr 24,403
Each (On a Reel of 500)
Units
14 bit 1 Serial (SPI) Surface Mount SC-70 Single - 2.7 → 5.5 V Internal Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 522-8843
Mfr. Part No.AD558JNZ
kr 185,54
Each
Units
8 bit 1 Parallel Through Hole PDIP Single - 12 V, 15 V, 5 V, 9 V Internal R-2R, Resistor String 16 3µs Unipolar ±2.5LSB
RS Stock No. 681-1092
Mfr. Part No.MCP4822-E/P
BrandMicrochip
kr 26,82
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. 709-5468
Mfr. Part No.AD7245AARZ
kr 191,62
Each
Units
12 bit 1 Parallel Surface Mount SOIC W Dual, Single 143ksps 12 V, 15 V Internal R-2R, Resistor String 24 7µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 758-9651
Mfr. Part No.AD565AJD
kr 442,57
Each
Units
12 bit 1 Parallel Through Hole CDIP Dual 4Msps - - Current Steering 24 0.25µs Bipolar ±1/2LSB
RS Stock No. 523-6399
Mfr. Part No.AD5320BRTZ-500RL7
kr 55,03
Each
Units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOT-23 Single 125ksps 3.3 V, 5 V External Resistor String 6 10µs Unipolar -1.25%FSR
RS Stock No. 158-0545
Mfr. Part No.AD9767ASTZ
kr 184,944
Each (In a Tray of 250)
Units
14 bit 2 Parallel Surface Mount LQFP Single 125Msps 5 V External, Internal Segmented 48 0.035µs Unipolar ±5%FSR
RS Stock No. 159-7810
Mfr. Part No.AD7538KNZ
kr 333,497
Each (In a Tube of 15)
Units
14 bit 1 Parallel Through Hole PDIP Single 667ksps 12 V, 15 V External R-2R, Resistor String 24 1.5µs - ±5LSB
RS Stock No. 709-1577
Mfr. Part No.AD5662ARJZ-2REEL7
kr 53,24
Each
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOT-23 Single 1.2Msps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1.5%FSR
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