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. 912-8804
Mfr. Part No.DAC8412FPCZ
MYR224.46
Each (In a Tube of 39)
units
12 bit 4 Parallel Surface Mount PLCC Dual, Single 167ksps 5 V External R-2R, Resistor String 28 10µs Unipolar ±8LSB
RS Stock No. 761-9143
Mfr. Part No.LTC1661CMS8#PBF
MYR13.97
Each
units
10 bit 2 Serial (SPI) Surface Mount MSOP Single 10MHz 2.7 → 5.5 V External R-2R, Resistor String 8 30µs - ±12LSB
RS Stock No. 145-7671
Mfr. Part No.AD7224KRZ-18
MYR47.487
Each (In a Tube of 41)
units
8 bit 1 Serial Surface Mount SOIC Dual, Single - 11.4 → 16.5 V Internal R-2R 18 20µs Bipolar, Unipolar ±3/2LSB
RS Stock No. 460-613
Mfr. Part No.DAC0808LCN/NOPB
MYR8.808
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. 662-1931
Mfr. Part No.TLV5624CD
MYR16.55
Each
units
8 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 233ksps 3 V, 5 V External, Internal Resistor String 8 7µs Unipolar ±0.6%FSR
RS Stock No. 917-3643
Mfr. Part No.LTC2620CGN#PBF
MYR49.972
Each (In a Tube of 100)
units
12 bit 8 Serial (SPI/Microwire) Surface Mount SSOP Single - 3.3 V, 5 V External - 16 7µs Unipolar ±0.7%FSR
RS Stock No. 545-7574
Mfr. Part No.DAC7554IDGS
MYR34.08
Each
units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 10 5µs Unipolar ±0.5%FSR
RS Stock No. 877-8720
Mfr. Part No.AD7224KRZ-18
MYR56.85
Each
units
8 bit 1 Serial Surface Mount SOIC Dual, Single - 11.4 → 16.5 V Internal R-2R 18 20µs Bipolar, Unipolar ±3/2LSB
RS Stock No. 651-2026
Mfr. Part No.DAC124S085CIMM/NOPB
MYR26.21
Each (In a Pack of 5)
units
12 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 10 8.5µs Unipolar -0.75%FSR
RS Stock No. 662-1498
Mfr. Part No.DAC8552IDGKT
MYR36.19
Each
units
16 bit 2 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. 912-7198
Mfr. Part No.AD421BRZ
MYR56.44
Each (In a Tube of 47)
units
16 bit 1 Serial (SPI) Surface Mount SOIC W Single 125sps 3.3 V, 5 V External, Internal Delta Sigma 16 8000µs - ±0.2%FSR
RS Stock No. 159-9329
Mfr. Part No.AD5694BRUZ
MYR38.16
Each (In a Tube of 96)
units
12 bit 4 Serial (I2C) Surface Mount TSSOP Single - 2.7 → 5.5 V External Resistor String 16 7µs Unipolar ±0.1%FSR
RS Stock No. 151-3086
Mfr. Part No.LTC2631CTS8-LZ12#TRMPBF
MYR12.642
Each (On a Reel of 500)
units
12 bit 1 Serial (I2C) Surface Mount TSOT-23 Single - Maximum of 5.5 V External, Internal - 8 4.6µs - ±0.4%FSR
RS Stock No. 159-9330
Mfr. Part No.AD5696ARUZ
MYR56.77
Each (In a Tube of 96)
units
16 bit 4 Serial (I2C) Surface Mount TSSOP Single - 2.7 → 5.5 V External Resistor String 16 8µs Unipolar ±0.2%FSR
RS Stock No. 151-3087
Mfr. Part No.LTC2632HTS8-LZ10#TRMPBF
MYR18.612
Each (On a Reel of 500)
units
10 bit 2 Serial (3 Wire) Surface Mount TSOT-23 Single - Maximum of 5.5 V External, Internal - 8 4.1µs - -
RS Stock No. 145-7585
Mfr. Part No.AD7845JRZ
MYR64.655
Each (In a Tube of 31)
units
12 bit 1 Parallel Surface Mount SOIC W Dual 200ksps - External R-2R, Resistor String 24 5µs Bipolar, Unipolar ±7LSB
New
RS Stock No. 190-4645
Mfr. Part No.MAX5725BAUP+
BrandMaxim
MYR35.904
Each (In a Tube of 74)
units
12 bit 8 - Surface Mount TSSOP Single - 2.7 → 5.5 V External, Internal - 20 4.5 (Typ.)µs Bipolar, Unipolar ±0.5%FSR
New
RS Stock No. 191-3322
Mfr. Part No.MAX526DCNG+
BrandMaxim
MYR202.587
Each (In a Tube of 15)
units
12 bit 4 Parallel Surface Mount DIP Dual - 4.75 → 5.5 V External R-2R 24 3µs - -
RS Stock No. 145-0081
Mfr. Part No.TLC7524CN
MYR12.078
Each (In a Tube of 25)
units
8 bit 1 Parallel Through Hole PDIP Single 10Msps 5 V, 15 V External R-2R, Resistor String 16 0.1µs - ±2.5LSB
RS Stock No. 697-7448
Mfr. Part No.AD9740ARUZ
MYR44.09
Each
units
10 bit 1 Parallel Surface Mount TSSOP Single 210Msps 3.3 V External, Internal Segmented 28 0.011µs - ±2%FSR
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