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庫存編號 858-0605
製造零件編號LTC1091CN8#PBF
HK$143.59
單位
1 - - 10 bit - - Through Hole PDIP 8 - ±2LSB Single 4.5 → 10 V -
RS庫存編號 786-9799
製造零件編號LTC1290DCSW#PBF
HK$148.38
單位
1 1 - 12 bit 74dB 13µs Surface Mount SOIC 20 ±0.75LSB 1LSB Dual, Single 5 V ±5V
RS庫存編號 858-0721
製造零件編號LTC1392CS8#PBF
HK$52.39
單位
1 - - 10 bit - - Surface Mount SOIC 8 - ±25LSB Single 4.5 → 6 V -
RS庫存編號 155-6751
製造零件編號LTC1290DCSW#PBF
HK$141.534
毎管:38 個
單位
1 1 - 12 bit 74dB 13µs Surface Mount SOIC 20 ±0.75LSB 1LSB Dual, Single 5 V ±5V
RS庫存編號 145-6092
製造零件編號LTC1392CS8#PBF
HK$57.018
毎管:100 個
單位
1 - - 10 bit - - Surface Mount SOIC 8 - ±25LSB Single 4.5 → 6 V -
RS庫存編號 155-9347
製造零件編號LTC1091CN8#PBF
HK$123.347
毎管:50 個
單位
1 - - 10 bit - - Through Hole PDIP 8 - ±2LSB Single 4.5 → 10 V -