NXP MPL3115A2 Precision Altimeter

The NXP MPL3115A2 is a compact, piezoresistive, absolute pressure sensor with an I2C interface designed to deliver high-precision altitude and temperature data to embedded systems. This robust sensor module is ideal for a wide range of applications, including mobile phones, tablet computers, GPS devices, health and sports watches, and various other types of consumer electronics.

With its high-accuracy altimetry capabilities, the MPL3115A2 can measure height changes as small as 30 cm (less than a foot), making it an excellent choice for applications that require precise elevation data. The sensor operates over a wide range of pressures from 20 kPa to 110 kPa, which translates into a broad altitude range for most consumer and industrial applications.

The MPL3115A2 also features an onboard temperature sensor, providing an additional data point that can be used to enhance system performance or to monitor the environmental conditions. The temperature sensor is capable of detecting changes with a high degree of precision, offering a resolution down to 0.1°C.

Integration of the MPL3115A2 into a system is made easy thanks to its I2C interface, which allows for simple communication with most microcontrollers. The device also includes a number of advanced features such as data logging, event triggering, and autonomous data acquisition, which reduce the processing load on the host processor and help conserve power in battery-operated devices.

The MPL3115A2 is housed in a compact LGA package that measures just 5 x 3 x 1.1 mm, making it suitable for space-constrained applications. Its low power consumption, combined with a wide operating voltage range of 1.95V to 3.6V, ensures that the MPL3115A2 can be integrated into portable devices without significantly impacting battery life.

Overall, the NXP MPL3115A2 is a highly versatile and precise sensor that offers a compelling solution for designers looking to add altimetry and temperature sensing capabilities to their products.