Pressure Measurement from five-channel low-power programmable sensor signal processor AD7714


Posted on Mar 28, 2007

AD7714 circuit constituted by a pressure measurement system is shown in Fig. BP01 is Sensym companys pressure sensors. The BP01 connected into a bridge circuit, from OUT +, OUT


Pressure Measurement from five-channel low-power programmable sensor signal processor AD7714
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- ended output differential voltage. When applied to the pressure sensor rated full-scale pressure (in this case 40kPa), its differential output voltage sensitivity of 3mV/V. If a + 5V excitation voltage, the sensor full-scale output range of 15mV. The excitation voltage is also through 24k and 15k resistance partial pressure for the AD7714 provides 1.92V reference voltage, so the fluctuations in the excitation voltage will not cause measurement error of the system.




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