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The circuit shown in Figure 1 is a 12-bit, 1 MSPS data acquisition system utilizing only two active devices. The system processes charge input signals from piezoelectric sensors using a single 3.3 V supply and has a total error of less than 0.25% FSR after calibration over a ±10°C temperature range, making it ideal for a wide variety of laboratory and industrial measurements.
The small footprint of the circuit makes this combination an industry-leading solution for data acquisition systems where accuracy, speed, cost, and size play a critical role.
The circuit design allows single supply operation. The minimum output voltage specification of the AD8608 is 50 mV for a 2.7 V power supply and 290 mV for 5 V power supply with 10 mA load current, over the temperature range of -40°C to +125°C. A minimum output voltage of 45 mV to 60 mV is a conservative estimate for a 3.3 V power supply, a load current less than 1 mA, and a narrower temperature range.
|Manufacturer||Analog Devices Inc.|
|Sub-Category||Other Sensing Solutions|
|Eval Board Part Number||EVAL-CN0350-PMDZ-ND|
|Eval Board Supplier||Analog Devices Inc.|
Normally In Stock
Up to 7.5 MHz
Over Voltage Protection
Shutdown, Enable, Standby
|Component Count + Extras||
24 + 6
|Main I.C. Base Part||