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. 172-7833
Mfr. Part No.AD7616BSTZ
£14.308
Each (In a Tray of 90)
Units
2 0 1Msps 16 (ADC) bit 90.5 dB @ ±10 V 120µs Surface Mount LQFP 80 ±2LSB ±32 LSB @ ±10 V Dual, Single 5 V ±10 V, ±2.5 V, ±5 V
RS Stock No. 155-9347
Mfr. Part No.LTC1091CN8#PBF
£11.094
Each (In a Tube of 50)
Units
1 - - 10 bit - - Through Hole PDIP 8 - ±2LSB Single 4.5 → 10 V -
RS Stock No. 145-6092
Mfr. Part No.LTC1392CS8#PBF
£4.379
Each (In a Tube of 100)
Units
1 - - 10 bit - - Surface Mount SOIC 8 - ±25LSB Single 4.5 → 6 V -
RS Stock No. 806-7809
Mfr. Part No.AD7606BSTZ-6
£18.03
Each
Units
1 - 200ksps 16 bit 95.5dB 80µs Surface Mount LQFP 64 ±2LSB ±32LSB Single 5 V -
RS Stock No. 858-0721
Mfr. Part No.LTC1392CS8#PBF
£4.45
Each
Units
1 - - 10 bit - - Surface Mount SOIC 8 - ±25LSB Single 4.5 → 6 V -
RS Stock No. 144-6431
Mfr. Part No.ADAQ7988BCCZ
£11.261
Each (In a Tray of 442)
Units
1 - - 16 bit - - Surface Mount LGA 24 ±20ppm - Dual, Single - -
RS Stock No. 144-6452
Mfr. Part No.ADAQ7988BCCZ
£13.48
Each
Units
1 - - 16 bit - - Surface Mount LGA 24 ±20ppm - Dual, Single - -
RS Stock No. 160-2730
Mfr. Part No.AD5593RBRUZ
£4.449
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. 171-4091
Mfr. Part No.BU92001KN-E2
BrandROHM
£2.803
Each (On a Reel of 2500)
Units
- - 115.2ksps - - - Surface Mount VQFN 20 - - Single 3 V -
RS Stock No. 177-2844
Mfr. Part No.MCP2122T-E/SN
£0.41
Each (On a Reel of 3300)
Units
- - 115.2kBd 8 bit, 16 bit - - Surface Mount SOIC 8 - - Single - -
RS Stock No. 875-4815
Mfr. Part No.AD5593RBRUZ
£5.80
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. 786-9799
Mfr. Part No.LTC1290DCSW#PBF
£16.35
Each
Units
1 1 - 12 bit 74dB 13µs Surface Mount SOIC 20 ±0.75LSB 1LSB Dual, Single 5 V ±5V
RS Stock No. 144-6430
Mfr. Part No.ADAQ7980BCCZ
£15.309
Each (In a Tray of 442)
Units
1 - - 16 bit - - Surface Mount LGA 24 ±20ppm - Dual, Single - -
RS Stock No. 171-4187
Mfr. Part No.BU92001KN-E2
BrandROHM
£5.105
Each (In a Pack of 2)
Units
- - 115.2ksps - - - Surface Mount VQFN 20 - - Single 3 V -
RS Stock No. 144-6450
Mfr. Part No.ADAQ7980BCCZ
£18.33
Each
Units
1 - - 16 bit - - Surface Mount LGA 24 ±20ppm - Dual, Single - -
RS Stock No. 177-3061
Mfr. Part No.MCP2122T-E/SN
£0.475
Each (In a Pack of 20)
Units
- - 115.2kBd 8 bit, 16 bit - - Surface Mount SOIC 8 - - Single - -
RS Stock No. 155-6751
Mfr. Part No.LTC1290DCSW#PBF
£13.088
Each (In a Tube of 38)
Units
1 1 - 12 bit 74dB 13µs Surface Mount SOIC 20 ±0.75LSB 1LSB Dual, Single 5 V ±5V
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