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. 169-0511
Mfr. Part No.BU2506FV-E2
BrandROHM
SGD3.509
Each (On a Reel of 2500)
units
10 bit 8 Serial (SPI) Surface Mount SSOP Single - 5 V External R-2R, Resistor String 20 20µs Unipolar ±25mV
RS Stock No. 169-8931
Mfr. Part No.BH2219FVM-TR
BrandROHM
SGD0.846
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. 169-9458
Mfr. Part No.BH2219FVM-TR
BrandROHM
SGD1.282
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. 700-3485
Mfr. Part No.BU2506FV-E2
BrandROHM
SGD5.63
Each
units
10 bit 8 Serial (SPI) Surface Mount SSOP Single - 5 V External R-2R, Resistor String 20 20µs Unipolar ±25mV
New
RS Stock No. 185-1362
Mfr. Part No.BU2508FV-E2
BrandROHM
SGD3.498
Each (In a Pack of 5)
units
10 bit 4 - Surface Mount SSOP Single - 4.5 → 5.5 V - - 14 20µs - ±25mV
RS Stock No. 169-9337
Mfr. Part No.BH2223FV-E2
BrandROHM
SGD3.73
Each (In a Pack of 2)
units
8 bit 10 Serial (3 Wire) Surface Mount SSOP Single - 2.7 → 5.5 V External R-2R 16 100µs Unipolar -
RS Stock No. 177-9889
Mfr. Part No.BU2507FV-E2
BrandROHM
SGD2.07
Each (On a Reel of 2500)
units
10 bit 6 - Surface Mount SSOP-B Single - 4.5 → 5.5 V Internal R-2R 14 20µs - 1 (Differential) LSB, 3.5 (Integral) LSB
RS Stock No. 700-3488
Mfr. Part No.BU2500FV-E2
BrandROHM
SGD4.64
Each
units
8 bit 12 Serial (SPI) Surface Mount SSOP Single - 5 V Supply R-2R, Resistor String 20 250µs Unipolar ±2LSB
RS Stock No. 178-0585
Mfr. Part No.BH2226FV-E2
BrandROHM
SGD4.275
Each (In a Pack of 2)
units
8 bit 8 - Surface Mount SSOP-B Single - 2.7 → 5.5 V Internal R-2R 16 100µs - 1 (Differential) LSB, 1.5 (Integral) LSB
RS Stock No. 169-8932
Mfr. Part No.BH2223FV-E2
BrandROHM
SGD2.433
Each (On a Reel of 2500)
units
8 bit 10 Serial (3 Wire) Surface Mount SSOP Single - 2.7 → 5.5 V External R-2R 16 100µs Unipolar -
RS Stock No. 700-3481
Mfr. Part No.BU2501FV-E2
BrandROHM
SGD4.03
Each
units
8 bit 12 Serial (SPI) Surface Mount SSOP Single - 3 V Supply R-2R, Resistor String 20 250µs Unipolar ±2LSB
RS Stock No. 177-9888
Mfr. Part No.BH2226FV-E2
BrandROHM
SGD2.847
Each (On a Reel of 2500)
units
8 bit 8 - Surface Mount SSOP-B Single - 2.7 → 5.5 V Internal R-2R 16 100µs - 1 (Differential) LSB, 1.5 (Integral) LSB
New
RS Stock No. 185-1265
Mfr. Part No.BU22210MUV-E2
BrandROHM
SGD2.319
Each (On a Reel of 3000)
units
10 bit 10 - Surface Mount VQFN Single - 2.7 → 5.5 V - - 16 - - -
RS Stock No. 131-2760
Mfr. Part No.BU2505FV-E2
BrandROHM
SGD3.264
Each (In a Pack of 5)
units
10 bit 10 Serial Surface Mount SSOP-B Single - 5 V External R-2R 20 20µs - ±25mV
RS Stock No. 169-8934
Mfr. Part No.BH2228FV-E2
BrandROHM
SGD1.778
Each (On a Reel of 2500)
units
8 bit 6 Serial (3 Wire) Surface Mount SSOP Single - 2.7 → 5.5 V External R-2R 14 100µs Unipolar -
RS Stock No. 124-6508
Mfr. Part No.BH2220FVM-TR
BrandROHM
SGD1.866
Each (In a Pack of 5)
units
8 bit 3 Serial Surface Mount MSOP Single - 2.7 → 5.5 V External R-2R 8 100µs Unipolar -
RS Stock No. 169-9341
Mfr. Part No.BH2226F-E2
BrandROHM
SGD1.902
Each (In a Pack of 5)
units
8 bit 8 Serial (3 Wire) Surface Mount SSOP Single - 2.7 → 5.5 V External R-2R 16 100µs Unipolar -
RS Stock No. 177-9887
Mfr. Part No.BH2221FV-E2
BrandROHM
SGD2.006
Each (On a Reel of 2500)
units
8 bit 12 - Surface Mount SSOP-B Single - 2.7 → 5.5 V Internal R-2R 20 100µs - 1 (Differential) LSB, 1.5 (Integral) LSB
New
RS Stock No. 185-1266
Mfr. Part No.BU2508FV-E2
BrandROHM
SGD1.963
Each (On a Reel of 2500)
units
10 bit 4 - Surface Mount SSOP Single - 4.5 → 5.5 V - - 14 20µs - ±25mV
New
RS Stock No. 185-1358
Mfr. Part No.BU22210MUV-E2
BrandROHM
SGD4.185
Each (In a Pack of 2)
units
10 bit 10 - Surface Mount VQFN Single - 2.7 → 5.5 V - - 16 - - -