MPX2102DP

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Pressure sensors and transducers play a critical role in measuring, monitoring, and optimizing industrial processes and are increasingly being used in many other arenas, like entertainment, automotive, medical, aerospace, and IoT applications. The MPX2102DP is a pressure sensor and transducer released by NXP, created specifically for usage in industrial and consumer electronic applications. This article will discuss its applications and working principle.

Application Field of MPX2102DP

Thanks to its features such as wide pressure range, small footprint, low power consumption, and efficient electric power, the MPX2102DP is an ideal choice to be used in a variety of applications. It is widely used in industry and consumer applications, such as tire pressure monitoring, automotive brake pressure sensing, wastewater level monitoring, medical breathing measurement, etc. The device is also suitable for measuring air velocity, air quality, gas pressure, liquid level, and many other applications.

Working Principle of MPX2102DP

The MPX2102DP is a piezoresistive pressure sensor and transducer that is based on the Wheatstone bridge principle. The Wheatstone bridge consists of four resistors, two of them being the external resistors while the other two are located on the bottom side of the chip. There is a pre-calibrated ratio between the output voltage and the pressure applied to the sensor. When the pressure is applied to the sensor, the resistors, which are located on the bottom side of the chip, experience changes in resistance. This results in a variation of the output voltage. This output voltage can be measured directly with an oscilloscope, or it can be converted to a digital signal with an ADC.

The MPX2102DP has an operating temperature range of -40°C to 85°C, with a maximum operating pressure of 350psig. The pressure accuracy of the device is 0.25%FS and a measurement resolution of 9 bits. Additionally, the device has over-pressure, under-pressure, and temperature compensation functions to ensure more accurate and reliable measurements. The device also features a low-power sleep mode, which allows the device to be powered on and off according to the requirements of the application.

Conclusion

The MPX2102DP is a pressure sensor and transducer that has a wide range of applications in both industrial and consumer electronic applications. It is based on the Wheatstone bridge principle, and it is capable of providing accurate and reliable measurements due to its temperature compensation and over-pressure and under-pressure functions. Thanks to its low power consumption and small footprint, the MPX2102DP is a cost-effective and efficient solution for your pressure measurement needs.

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