The pressure measurement system circuit using 5 - channel low-power programmable sensor signal processor AD7714

Published:2012/10/11 21:38:00 Author:Ecco | Keyword: pressure measurement system , 5 - channel, low-power , programmable sensor, signal processor | From:SeekIC

BP01 is a pressure sensor produced by Sensym Company. BP01 is connected as a bridge circuit, OUT + , OUT - ends output differential voltage. When the pressure sensor is applied to nominal full scale pressure ( 40kPa), the sensitivity of differential output voltage is 3mV / V. If it uses +5 V excitation voltage, the sensor full-scale output range is ± 15mV. The excitation voltage is divided by 24kΩ and 15kΩ resistors to provide 1.92 V reference voltage for AD7714, and the excitation voltage fluctuation does not cause a measurement error of the system.



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