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. 121-6912
Mfr. Part No.ADDAC80NZ-CBI-V
£24.448
Each (In a Tube of 15)
Units
12 bit 1 Parallel Through Hole PDIP Dual, Single - 12 V External, Internal Current Steering 24 4µs Bipolar, Unipolar -
RS Stock No. 159-8021
Mfr. Part No.DAC10GPZ
£5.17
Each (In a Tube of 20)
Units
10 bit 1 Parallel Through Hole PDIP Dual - - External Current Steering 18 0.15µs Unipolar -
RS Stock No. 160-1685
Mfr. Part No.AD5755ACPZ
£16.928
Each (In a Tray of 260)
Units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount LFCSP VQ Dual, Single - 0 → 10 V, 0 → 5 V External, Internal R-2R 64 18µs Bipolar, Unipolar ±0.03%FSR
RS Stock No. 726-3882
Mfr. Part No.MCP4911-E/P
BrandMicrochip
£1.15
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
£0.938
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. 522-9212
Mfr. Part No.AD7533JNZ
£9.76
Each
Units
10 bit 1 Parallel Through Hole PDIP Single 1.7Msps 15 V External R-2R, Resistor String 16 0.8µs - ±1%FSR
RS Stock No. 160-1691
Mfr. Part No.AD5791ARUZ
£46.943
Each (In a Tube of 75)
Units
20 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±21LSB
RS Stock No. 889-5847
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
£0.599
Each (On a Reel of 3000)
Units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Unipolar 82LSB
RS Stock No. 538-8298
Mfr. Part No.AD5342BRUZ
£10.44
Each
Units
12 bit 2 Parallel Surface Mount TSSOP Single 125ksps 3.3 V, 5 V External Resistor String 28 10µs Unipolar ±1%FSR
RS Stock No. 161-0629
Mfr. Part No.AD7528KNZ
£12.466
Each (In a Tube of 18)
Units
8 bit 2 Parallel Through Hole PDIP Single 5.6Msps 9 V, 12 V External R-2R, Resistor String 20 0.4µs - ±4LSB
RS Stock No. 806-5519
Mfr. Part No.AD5791ARUZ
£50.29
Each
Units
20 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±21LSB
RS Stock No. 738-7121
Mfr. Part No.MCP4726A0T-E/CH
BrandMicrochip
£0.802
Each (In a Pack of 5)
Units
12 bit 1 Serial (I2C) Surface Mount SOT-23 Single - 2.7 → 5.5 V External Resistor String 6 6µs Unipolar 82LSB
RS Stock No. 912-7637
Mfr. Part No.AD5342BRUZ
£8.612
Each (In a Tube of 50)
Units
12 bit 2 Parallel Surface Mount TSSOP Single 125ksps 3.3 V, 5 V External Resistor String 28 10µs Unipolar ±1%FSR
RS Stock No. 111-1109
Mfr. Part No.AD7533JNZ
£8.323
Each (In a Tube of 25)
Units
10 bit 1 Parallel Through Hole PDIP Single 1.7Msps 15 V External R-2R, Resistor String 16 0.8µs - ±1%FSR
RS Stock No. 111-1099
Mfr. Part No.DAC08CPZ
£2.337
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. 522-9004
Mfr. Part No.DAC08CPZ
£2.92
Each
Units
8 bit 1 Parallel Through Hole PDIP Dual 11.8Msps - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 522-8607
Mfr. Part No.AD7528KNZ
£13.73
Each
Units
8 bit 2 Parallel Through Hole PDIP Single 5.6Msps 9 V, 12 V External R-2R, Resistor String 20 0.4µs - ±4LSB
RS Stock No. 823-1110
Mfr. Part No.MCP4728A0-E/UN
BrandMicrochip
£1.584
Each (In a Pack of 5)
Units
12 bit 4 Serial (I2C) Surface Mount MSOP Single - 2.7 → 5.5 V External, Internal Resistor String 10 6µs Unipolar -
RS Stock No. 709-5456
Mfr. Part No.AD7245AANZ
£19.29
Each
Units
12 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 12 V, 15 V Internal R-2R, Resistor String 24 7µs Bipolar, Unipolar ±0.2%FSR
RS Stock No. 158-5256
Mfr. Part No.AD7245AANZ
£17.54
Each (In a Tube of 15)
Units
12 bit 1 Parallel Through Hole PDIP Dual, Single 143ksps 12 V, 15 V Internal R-2R, Resistor String 24 7µs Bipolar, Unipolar ±0.2%FSR
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