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. 145-0836
Mfr. Part No.TLC5620CD
SGD8.732
Each (In a Tube of 50)
units
8 bit 4 Serial (SPI) Surface Mount SOIC Single 48ksps 5 V External Resistor String 14 10µs Unipolar ±60mV
RS Stock No. 889-5503
Mfr. Part No.MCP4822-E/MS
BrandMicrochip
SGD3.352
Each (In a Tube of 100)
units
12 bit 2 Serial (SPI/Microwire) Surface Mount MSOP Single - 5 V Internal Resistor String 8 4.5µs Unipolar ±2%FSR
RS Stock No. 162-4996
Mfr. Part No.DAC084S085CIMM/NOPB
SGD1.686
Each (On a Reel of 1000)
units
8 bit 4 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single - 3.3 V, 5 V External Resistor String 10 4.5µs Unipolar -0.75%FSR
RS Stock No. 522-9240
Mfr. Part No.AD7542JNZ
SGD58.29
Each
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V External R-2R, Resistor String 16 2µs - ±4LSB
RS Stock No. 158-0545
Mfr. Part No.AD9767ASTZ
SGD36.216
Each (In a Tray of 250)
units
14 bit 2 Parallel Surface Mount LQFP Single 125Msps 5 V External, Internal Segmented 48 0.035µs Unipolar ±5%FSR
RS Stock No. 669-6290
Mfr. Part No.MCP4725A0T-E/CH
BrandMicrochip
SGD1.422
Each (In a Pack of 5)
units
12 bit 1 Serial (I2C) Surface Mount SOT-23A Single - 3.3 V, 5 V External Resistor String 6 6µs Unipolar ±2%FSR
RS Stock No. 111-1138
Mfr. Part No.AD7541AKNZ
SGD30.236
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 - ±5LSB
RS Stock No. 770-9798
Mfr. Part No.MCP4821-E/P
BrandMicrochip
SGD3.805
Each (In a Pack of 2)
units
12 bit 1 Serial (SPI) Through Hole PDIP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar 12LSB
RS Stock No. 697-7458
Mfr. Part No.AD9767ASTZ
SGD37.89
Each
units
14 bit 2 Parallel Surface Mount LQFP Single 125Msps 5 V External, Internal Segmented 48 0.035µs Unipolar ±5%FSR
RS Stock No. 165-8939
Mfr. Part No.MAX536ACPE+
SGD114.774
Each (In a Tube of 10)
units
12 bit 4 Serial (SPI/QSPI/Microwire) Through Hole PDIP Dual - - External R-2R, Resistor String 16 3µs Unipolar ±1.5LSB
RS Stock No. 161-0640
Mfr. Part No.AD7542JNZ
SGD52.136
Each (In a Tube of 25)
units
12 bit 1 Parallel Through Hole PDIP Single - 5 V External R-2R, Resistor String 16 2µs - ±4LSB
RS Stock No. 887-7423
Mfr. Part No.MCP4728-E/UN
BrandMicrochip
SGD2.127
Each (In a Tube of 100)
units
12 bit - Serial (I2C) Surface Mount MSOP Single - 3.3 V, 5 V - Resistor String 10 - - -
RS Stock No. 160-7973
Mfr. Part No.AD5641BKSZ-500RL7
SGD5.427
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. 145-1191
Mfr. Part No.LTC1446CN8#PBF
SGD15.247
Each (In a Tube of 50)
units
12 bit 2 Serial (SPI) Through Hole PDIP Single - 5 V Internal R-2R 8 14µs Unipolar -
RS Stock No. 145-7183
Mfr. Part No.LTC2622IMS8#PBF
SGD8.156
Each (In a Tube of 50)
units
12 bit 2 Serial (SPI) Surface Mount MSOP Single 50MHz 2.5 5.5 V External R-2R, Resistor String 8 10µs - ±0.5LSB
RS Stock No. 650-087
Mfr. Part No.TLC7524CN
SGD6.10
Each
units
8 bit 1 Parallel Through Hole PDIP Single 10Msps 15 V, 5 V External R-2R, Resistor String 16 0.1µs - ±2.5LSB
RS Stock No. 146-0259
Mfr. Part No.MCP4728A1-E/UN
BrandMicrochip
SGD2.219
Each (In a Tube of 100)
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. 121-8980
Mfr. Part No.DAC121S101CIMM/NOPB
SGD1.695
Each (On a Reel of 1000)
units
12 bit 1 Serial (SPI/QSPI/Microwire) Surface Mount MSOP Single - 3.3 V, 5 V Supply Resistor String 8 10µs Unipolar -1%FSR
RS Stock No. 912-9955
Mfr. Part No.AD5421BREZ
SGD14.514
Each (In a Tube of 50)
units
16 bit 1 Serial Surface Mount TSSOP Single - 5.5 → 52 V Internal - 28 50µs - 0.107%FSR
RS Stock No. 145-9358
Mfr. Part No.MCP4821-E/MS
BrandMicrochip
SGD2.756
Each (In a Tube of 100)
units
12 bit 1 Serial (SPI) Surface Mount MSOP Single - 2.7 → 5.5 V Internal Resistor String 8 4.5µs Bipolar ±2%FSR
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