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. 131-1218
Mfr. Part No.AD7616BSTZ
$38.90
Each
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. 403-648
Mfr. Part No.MCP2120-I/SL
BrandMicrochip
$1.782
Each (In a Pack of 5)
units
- - - - - - Surface Mount SOIC 14 - - - - -
RS Stock No. 806-7799
Mfr. Part No.AD7606BSTZ-4
$36.11
Each
units
1 - 200ksps 16 bit 95.5dB 80µs Surface Mount LQFP 64 ±2LSB ±32LSB Single 5 V -
RS Stock No. 162-9688
Mfr. Part No.ADS8688IDBT
$29.322
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. 911-5586
Mfr. Part No.MCP2120-I/SL
BrandMicrochip
$1.529
Each (In a Tube of 57)
units
- - - - - - Surface Mount SOIC 14 - - - - -
RS Stock No. 538-4145
Mfr. Part No.AD7569JNZ
$50.82
Each
units
1 1 200kHz 8 bit 44dB 4µs Through Hole PDIP 24 ±1LSB ±3LSB Dual, Single 5 V ±5V
RS Stock No. 796-8701
Mfr. Part No.ADAS3022BCPZ
$48.05
Each
units
1 1 1Msps 16 bit 91.5dB 100ms Surface Mount LFCSP 40 +1.5LSB ±15LSB Dual, Single 4.75 → 5.25 V ±1.28 → ±10.24V
RS Stock No. 172-7832
Mfr. Part No.AD7605-4BSTZ
$28.12
Each (In a Tray of 160)
units
1 - 300ksps 16 bit 90dB 80µs Surface Mount LQFP 64 ±2LSB ±32LSB Single 2.5 → 5 V -
New
RS Stock No. 200-3858
Mfr. Part No.MAX17843ACB/V+
$20.31
Each
units
- - - - - - - LQFP 64 - - - - -
RS Stock No. 155-9347
Mfr. Part No.LTC1091CN8#PBF
$24.813
Each (In a Tube of 50)
units
1 - - 10 bit - - Through Hole PDIP 8 - ±2LSB Single 4.5 → 10 V -
RS Stock No. 795-8022
Mfr. Part No.ADAS3023BCPZ
$51.26
Each
units
1 - 1Msps 16 bit 91.5dB 100ms Surface Mount LFCSP 40 - - Single 4.75 → 5.25 V -
RS Stock No. 171-4091
Mfr. Part No.BU92001KN-E2
BrandROHM
$6.292
Each (On a Reel of 2500)
units
- - 115.2ksps - - - Surface Mount VQFN 20 - - Single 3 V -
RS Stock No. 159-9299
Mfr. Part No.ADAS3022BCPZ
$46.026
Each (In a Tray of 490)
units
1 1 1Msps 16 bit 91.5dB 100ms Surface Mount LFCSP 40 +1.5LSB ±15LSB Dual, Single 4.75 → 5.25 V ±1.28 → ±10.24V
RS Stock No. 806-7802
Mfr. Part No.AD7609BSTZ
$65.70
Each
units
18 - 200ksps 18 bit 101dB 80µs Surface Mount LQFP 64 ±7.5LSB ±140LSB Single 5 V -
New
RS Stock No. 200-3857
Mfr. Part No.MAX17843ACB/V+
$17.129
Each (In a Tray of 160)
units
- - - - - - - LQFP 64 - - - - -
RS Stock No. 912-8148
Mfr. Part No.AD7606BSTZ-4
$27.964
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. 177-2844
Mfr. Part No.MCP2122T-E/SN
BrandMicrochip
$1.107
Each (On a Reel of 3300)
units
- - 115.2kBd 8 bit, 16 bit - - Surface Mount SOIC 8 - - Single - -
RS Stock No. 159-6632
Mfr. Part No.MCP2122-E/SN
BrandMicrochip
$1.10
Each (In a Tube of 100)
units
- - - - - - Surface Mount SOIC 8 - - Single - -
RS Stock No. 865-9899
Mfr. Part No.ADS8688IDBT
$37.07
Each
units
1 - 0.5Msps 16 bit - - Surface Mount TSSOP 38 ±4LSB - Single 3.3 V, 5 V -
RS Stock No. 145-6092
Mfr. Part No.LTC1392CS8#PBF
$9.914
Each (In a Tube of 100)
units
1 - - 10 bit - - Surface Mount SOIC 8 - ±25LSB Single 4.5 → 6 V -
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