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. 158-0209
Mfr. Part No.AD5545BRUZ
TWD607.80
Each (In a Tube of 96)
units
16 bit 2 Serial (SPI) Surface Mount TSSOP Single 2Msps 5 V External Current Steering, R-2R 16 0.5µs Unipolar ±4mV
RS Stock No. 157-8545
Mfr. Part No.AD7847BRZ
TWD1,190.20
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. 806-5507
Mfr. Part No.AD5781BRUZ
TWD1,578.00
Each
units
18 bit 1 Serial (SPI) Surface Mount TSSOP Dual - - External, Internal R-2R, Resistor String 20 1µs Bipolar ±5.25LSB
RS Stock No. 709-5945
Mfr. Part No.AD5645RBRUZ
TWD460.00
Each
units
14 bit 4 Serial (I2C) Surface Mount TSSOP Single - 3.3 V, 5 V External, Internal Resistor String 14 5µs Unipolar ±0.5%FSR
RS Stock No. 111-1128
Mfr. Part No.AD7524JNZ
TWD383.90
Each (In a Tube of 25)
units
8 bit 1 Parallel Through Hole PDIP Single 4Msps 9 V, 12 V External R-2R, Resistor String 16 0.5µs - ±3.5LSB
RS Stock No. 162-7098
Mfr. Part No.TLC7226IN
TWD194.00
Each (In a Tube of 20)
units
8 bit 4 Parallel Through Hole PDIP Dual, Single 143ksps 15 V External R-2R, Resistor String 20 20µs Bipolar, Unipolar ±2LSB
RS Stock No. 146-0330
Mfr. Part No.MCP48FVB22-E/UN
BrandMicrochip
TWD56.90
Each (In a Tube of 100)
units
12 bit 2 Serial (SPI) Surface Mount MSOP Single - 1.8 → 2.7 V, 2.7 → 5.5 V Internal Resistor String 10 7.8µs Bipolar 70LSB
RS Stock No. 121-6901
Mfr. Part No.AD5611AKSZ-500RL7
TWD32.40
Each (On a Reel of 500)
units
10 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SC-70 Single - 2.7 → 5.5 V Internal Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 160-7973
Mfr. Part No.AD5641BKSZ-500RL7
TWD105.60
Each (On a Reel of 500)
units
14 bit 1 Serial (SPI/QSPI) Surface Mount SC-70 Single - 2.7 → 5.5 V External Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 912-6570
Mfr. Part No.AD5542BRZ
TWD730.30
Each (In a Tube of 56)
units
16 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SOIC Single 1.5Msps 5 V External R-2R, Resistor String 14 1µs Bipolar, Unipolar ±7LSB
RS Stock No. 806-5370
Mfr. Part No.AD5611AKSZ-500RL7
TWD54.80
Each (On a Tape of 5)
units
10 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount SC-70 Single - 2.7 → 5.5 V Internal Resistor String 6 10µs Bipolar ±0.5mV
RS Stock No. 851-4611
Mfr. Part No.LTC2601IDD#PBF
TWD249.00
Each
units
16 bit 1 Serial (SPI/Microwire) Surface Mount DFN Single - 2.5 → 5.5 V - R-2R 10 10µs - -
RS Stock No. 879-3258
Mfr. Part No.MCP47FEB01A0-E/ST
BrandMicrochip
TWD27.30
Each (In a Pack of 10)
units
8 bit 1 Serial (I2C) Surface Mount TSSOP Single - 1.8 → 5.5 V External, Internal Resistor String 8 6µs Bipolar 4.5LSB
RS Stock No. 645-3696
Mfr. Part No.DAC0800LCM/NOPB
TWD63.40
Each (In a Pack of 5)
units
8 bit 1 Parallel Surface Mount SOIC Dual - - External Current Steering 16 0.15µs Unipolar ±1LSB
RS Stock No. 758-9667
Mfr. Part No.AD5663BRMZ-1
TWD270.00
Each
units
16 bit 2 Serial (SPI) Surface Mount MSOP Single 220ksps 2.7 → 5.5 V External, Internal Resistor String 10 7µs Bipolar ±1%FSR
RS Stock No. 158-5297
Mfr. Part No.AD558JPZ
TWD624.60
Each (In a Tube of 49)
units
8 bit 1 Parallel Surface Mount PLCC Single - 5 V, 9 V, 12 V, 15 V Internal R-2R, Resistor String 20 3µs Unipolar ±2.5LSB
RS Stock No. 158-5301
Mfr. Part No.AD5645RBRUZ
TWD394.20
Each (In a Tube of 96)
units
14 bit 4 Serial (I2C) Surface Mount TSSOP Single - 3.3 V, 5 V External, Internal Resistor String 14 5µs Unipolar ±0.5%FSR
RS Stock No. 916-3699
Mfr. Part No.MCP48FVB22-E/UN
BrandMicrochip
TWD74.80
Each (In a Pack of 5)
units
12 bit 2 Serial (SPI) Surface Mount MSOP Single - 1.8 → 2.7 V, 2.7 → 5.5 V Internal Resistor String 10 7.8µs Bipolar 70LSB
RS Stock No. 497-0177
Mfr. Part No.AD5318BRUZ
TWD368.00
Each
units
10 bit 8 Serial (SPI/QSPI/Microwire) Surface Mount TSSOP Single 167ksps 3.3 V, 5 V External Resistor String 16 9µs Unipolar ±1.25%FSR
RS Stock No. 538-6034
Mfr. Part No.AD5545BRUZ
TWD703.00
Each
units
16 bit 2 Serial (SPI) Surface Mount TSSOP Single 2Msps 5 V External Current Steering, R-2R 16 0.5µs Unipolar ±4mV