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 TVs (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. 169-8931
Mfr. Part No.BH2219FVM-TR
BrandROHM
$1.665
Each (On a Reel of 3000)
units
8 bit 2 Serial (3 Wire) Surface Mount MSOP Single - 2.7 → 5.5 V External R-2R 8 100µs Unipolar -
RS Stock No. 111-2289
Mfr. Part No.AD5724AREZ
$19.059
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. 538-4886
Mfr. Part No.AD5390BSTZ-5
$77.56
Each
units
14 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 125ksps 5 V External, Internal Resistor String 52 10µs Unipolar ±0.06%FSR
RS Stock No. 912-6454
Mfr. Part No.AD5362BSTZ
$62.032
Each (In a Tray of 160)
units
16 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount LQFP Dual - - External Resistor String 52 30µs Bipolar, Unipolar ±20mV
RS Stock No. 146-0174
Mfr. Part No.MCP4922-E/ST
BrandMicrochip
$3.719
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. 158-0158
Mfr. Part No.AD5390BSTZ-5
$74.676
Each (In a Tray of 160)
units
14 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 125ksps 5 V External, Internal Resistor String 52 10µs Unipolar ±0.06%FSR
RS Stock No. 111-1122
Mfr. Part No.AD7541AJNZ
$34.982
Each (In a Tube of 20)
units
12 bit 1 Parallel Through Hole PDIP Single - 15 V External R-2R, Resistor String 18 0.6µs - ±8LSB
RS Stock No. 491-5625
Mfr. Part No.CS4398-CZZ
$19.07
Each
units
24 bit 2 Serial Surface Mount TSSOP Single 216ksps 5 V External, Internal Delta Sigma 28 - Bipolar -
RS Stock No. 522-8843
Mfr. Part No.AD558JNZ
$31.46
Each
units
8 bit 1 Parallel Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V Internal R-2R, Resistor String 16 3µs Unipolar ±2.5LSB
RS Stock No. 169-9458
Mfr. Part No.BH2219FVM-TR
BrandROHM
$3.73
Each (In a Pack of 5)
units
8 bit 2 Serial (3 Wire) Surface Mount MSOP Single - 2.7 → 5.5 V External R-2R 8 100µs Unipolar -
RS Stock No. 538-4909
Mfr. Part No.AD5391BSTZ-5
$61.21
Each
units
12 bit 16 Serial (I2C/SPI/QSPI/Microwire) Surface Mount LQFP Single 167ksps 5 V External, Internal Resistor String 52 8µs Unipolar ±0.06%FSR
RS Stock No. 106-7077
Mfr. Part No.AD558JNZ
$31.746
Each (In a Tube of 25)
units
8 bit 1 Parallel Through Hole PDIP Single - 5 V, 9 V, 12 V, 15 V Internal R-2R, Resistor String 16 3µs Unipolar ±2.5LSB
RS Stock No. 523-0133
Mfr. Part No.DAC08EPZ
$8.75
Each
units
8 bit 1 Parallel Through Hole PDIP Dual 11.8Msps - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 111-2234
Mfr. Part No.AD5308ARUZ
$8.336
Each (In a Tube of 96)
units
8 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single 167ksps 3.3 V, 5 V External Resistor String 16 8µs Unipolar ±1.25%FSR
RS Stock No. 460-613
Mfr. Part No.DAC0808LCN/NOPB
$4.23
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. 538-5621
Mfr. Part No.AD5339BRMZ
$23.33
Each
units
12 bit 2 Serial Surface Mount MSOP Single 14.8ksps 3.3 V, 5 V External Resistor String 8 10µs Unipolar ±1%FSR
RS Stock No. 407-278
Mfr. Part No.DAC108S085CIMT/NOPB
$15.04
Each
units
10 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single - 3.3 V, 5 V External Resistor String 16 6µs Unipolar -0.75%FSR
RS Stock No. 708-9498
Mfr. Part No.AD5764CSUZ
$85.87
Each
units
16 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount TQFP Dual 1.26Msps - External, Internal R-2R, Resistor String 32 10µs Bipolar ±0.02%FSR
RS Stock No. 427-111
Mfr. Part No.DAC8043FPZ
$43.69
Each
units
12 bit 1 Serial (SPI) Through Hole PDIP Single 366ksps 5 V External R-2R, Resistor String 8 1µs - 2LSB
RS Stock No. 160-5002
Mfr. Part No.AD5542AARUZ
$19.425
Each (In a Tube of 96)
units
16 bit 1 Serial (SPI/QSPI) Surface Mount TSSOP Single - 2.7 → 5.5 V External R-2R, Resistor String 16 1µs Bipolar, Unipolar -
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