Data Acquisition System ICs

A Data Acquisition System, commonly abbreviated to DAS or DAQ, is a device that measures analogue electrical signals and converts them into digital form. The translation of analogue signals into digital provides data in a binary format that can be stored, read and processed by a computing system.

For example, a Data Acquisition System is commonly used to process the signals produced by sensors. A sensor monitors a physical phenomenon, producing an analogue output proportional to the variable being measured. A Data Acquisition System can be used to convert the signal into digital, allowing it to be used by the host system.

To provide complete analogue-to-digital conversion functionality a Data Acquisition System IC integrates all the required circuity into one device, marrying an analogue front-end (AFE) signal conditioning circuit to an analogue-to-digital converter in one package.

Signal conditioning circuity prepares the analogue input for processing, as often raw input signals are not suitable for processing by the analogue-to-digital converter. Filtering, amplification, isolation and attenuation are some examples of the conditioning circuity that may be integrated into the device.

Why use a Digital Acquisition System IC for Signal Conversion?

• A DAS IC provides a complete signal conversion solution, it minimises the external circuity required. Component count is less compared to utilising standalone analogue to digital converters with separate signal conditioning circuits
• Product development is simpler as all of the needed conversion functionality is already designed and provided by the device.
• Can be more space efficient and take up less PCB space

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Description Price Number of ADCs Number of DACs Data Rate Resolution Signal to Noise Ratio Maximum Settling Time Mounting Type Package Type Pin Count Integral Nonlinearity Error Full Scale Error Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage
RS Stock No. 177-3061
Mfr. Part No.MCP2122T-E/SN
BrandMicrochip
SGD1.13
Each (In a Pack of 20)
units
- - 115.2kBd 8 bit, 16 bit - - Surface Mount SOIC 8 - - Single - -
New
RS Stock No. 200-6329
Mfr. Part No.AS8510-ASSM
Brandams
SGD15.05
Each
units
2 No DACs / 2 ADCs - 16 bit 90dB 2000µs - SSOP 20 - - - - -
RS Stock No. 875-4815
Mfr. Part No.AD5593RBRUZ
SGD11.38
Each
units
1 8 10kHz 12 bit 81dB 6µs Surface Mount TSSOP 16 ±1 (DAC) LSB, ±2 (ADC) LSB 0.3%FSR Single 2.7 → 5.5 V -
RS Stock No. 171-4091
Mfr. Part No.BU92001KN-E2
BrandROHM
SGD5.64
Each (On a Reel of 2500)
units
- - 115.2ksps - - - Surface Mount VQFN 20 - - Single 3 V -
RS Stock No. 160-2730
Mfr. Part No.AD5593RBRUZ
SGD8.97
Each (In a Tube of 96)
units
1 8 10kHz 12 bit 81dB 6µs Surface Mount TSSOP 16 ±1 (DAC) LSB, ±2 (ADC) LSB 0.3%FSR Single 2.7 → 5.5 V -
RS Stock No. 159-6632
Mfr. Part No.MCP2122-E/SN
BrandMicrochip
SGD0.943
Each (In a Tube of 100)
units
- - - - - - Surface Mount SOIC 8 - - Single - -
RS Stock No. 912-8148
Mfr. Part No.AD7606BSTZ-4
SGD24.877
Each (In a Tray of 160)
units
1 - 200ksps 16 bit 95.5dB 80µs Surface Mount LQFP 64 ±2LSB ±32LSB Single 5 V -
RS Stock No. 145-6092
Mfr. Part No.LTC1392CS8#PBF
SGD8.957
Each (In a Tube of 100)
units
1 - - 10 bit - - Surface Mount SOIC 8 - ±25LSB Single 4.5 → 6 V -
RS Stock No. 865-9899
Mfr. Part No.ADS8688IDBT
SGD34.38
Each
units
1 - 0.5Msps 16 bit - - Surface Mount TSSOP 38 ±4LSB - Single 3.3 V, 5 V -
RS Stock No. 858-0605
Mfr. Part No.LTC1091CN8#PBF
SGD27.41
Each
units
1 - - 10 bit - - Through Hole PDIP 8 - ±2LSB Single 4.5 → 10 V -
RS Stock No. 162-9688
Mfr. Part No.ADS8688IDBT
SGD24.719
Each (In a Tube of 50)
units
1 - 0.5Msps 16 bit - - Surface Mount TSSOP 38 ±4LSB - Single 3.3 V, 5 V -
RS Stock No. 155-9347
Mfr. Part No.LTC1091CN8#PBF
SGD21.924
Each (In a Tube of 50)
units
1 - - 10 bit - - Through Hole PDIP 8 - ±2LSB Single 4.5 → 10 V -
RS Stock No. 538-4145
Mfr. Part No.AD7569JNZ
SGD45.54
Each
units
1 1 200kHz 8 bit 44dB 4µs Through Hole PDIP 24 ±1LSB ±3LSB Dual, Single 5 V ±5V
RS Stock No. 806-7799
Mfr. Part No.AD7606BSTZ-4
SGD32.55
Each
units
1 - 200ksps 16 bit 95.5dB 80µs Surface Mount LQFP 64 ±2LSB ±32LSB Single 5 V -
RS Stock No. 795-8022
Mfr. Part No.ADAS3023BCPZ
SGD46.47
Each
units
1 - 1Msps 16 bit 91.5dB 100ms Surface Mount LFCSP 40 - - Single 4.75 → 5.25 V -
RS Stock No. 144-6430
Mfr. Part No.ADAQ7980BCCZ
SGD29.396
Each (In a Tray of 442)
units
1 - - 16 bit - - Surface Mount LGA 24 ±20ppm - Dual, Single - -
RS Stock No. 160-2729
Mfr. Part No.AD5592RBRUZ
SGD8.97
Each (In a Tube of 96)
units
1 8 400ksps 12 bit 81dB 6µs Surface Mount TSSOP 16 ±1 (DAC) LSB, ±2 (ADC) LSB 0.3%FSR Single 2.7 → 5.5 V -
RS Stock No. 144-6450
Mfr. Part No.ADAQ7980BCCZ
SGD36.92
Each
units
1 - - 16 bit - - Surface Mount LGA 24 ±20ppm - Dual, Single - -
New
RS Stock No. 200-3857
Mfr. Part No.MAX17843ACB/V+
SGD14.572
Each (In a Tray of 160)
units
- - - - - - - LQFP 64 - - - - -
New
RS Stock No. 200-6328
Mfr. Part No.AS8510-ASSM
Brandams
SGD8.628
Each (On a Reel of 500)
units
2 No DACs / 2 ADCs - 16 bit 90dB 2000µs - SSOP 20 - - - - -
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