The MPL3115A2 is a compact piezoresistive absolute pressure sensor with an I2C interface. MPL3115 has a wide operating range of 20kPa to 110 kPa, a range that covers all surface elevations on Earth.

The fully internally compensated MEMS in conjunction with an embedded high resolution 24-bit equivalent ADC provide accurate pressure [Pascals] /altitude [meters] and temperature [degrees Celsius] data. The internal processing in MPL3115A2 removes compensation and unit conversion load from the system MCU, simplifying system design.

More information at NXP dedicated page

Technical Details

  • Supply Voltage (Vdd): from 1.95 V to 3.6 V
  • Operation Temperature (Top): from -40 °C to 85 °C
  • Operating range: 20 kPa to 110 kPa absolute pressure
  • Pressure 20-bit measurement (Pascals): from 20 kPa to 110 kPa
  • Altitude 20-bit measurement (meters): from –698 m to 11775 m
  • Temperature 12-bit measurement (°C): from -40 °C to 85 °C
  • Precision ADC resulting in 0.1 meter of effective resolution
  • Fully compensated internally
  • I²C interface

Here below, the Zerynth driver for the NXP MPL3115A2.