Pressure measuring system circuit diagram composed of AD7714

Published:2011/5/6 4:10:00 Author:Ecco | Keyword: Pressure measuring system | From:SeekIC

Pressure measuring system circuit diagram composed of AD7714 5-channel low-power programmable sensor signal processor Pressure measuring system circuit diagram composed of AD7714 is shown as the chart. BP01 is pressure sensor produced by Sensym. The BP01 is connected into a bridge circuit, the OUT +, OUT- ends output differential voltage. When pressure sensor is set the full scale rated pressure (in this case it is 40kPa), its differential output voltage sensitivity is 3mV / V. If it uses +5 V excitation voltage, the sensor full-scale output range is ± 15mV. The excitation voltage has been divided by 24kΩ and 15kΩ resistor to provide 1.92V reference voltage for AD7714, the excitation voltage fluctuations do not cause the measurement error to system.



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