MPL3115A2ST1

MPL3115A2ST1 is an I²C precision pressure sensor with altimetry. It is a compact, piezoresistive, absolute pressure sensor with an I²C digital interface. The MEMS is temperature compensated utilizing an on-chip temperature sensor. The pressure and temperature data is fed into a high-resolution ADC to provide fully compensated and digitized outputs for pressure in Pascals and temperature in °C. The internal processing in MPL3115A2 removes compensation and unit conversion load from the system MCU, simplifying system design. The application includes high-accuracy altimetry and barometry, smartphones, tablets, and wearable devices, GPS applications: dead reckoning, map assist, navigation, enhancement for emergency services, and weather station equipment.

• Calibrated range from 50kPa to 110kPa absolute pressure
• I²C digital output interface, fully compensated internally
• Precision ADC resulting in 0.1meter of effective resolution
• Programmable interrupts
• I/O supply voltage range from 1.62 to 3.6V (VDD = 2.5V, T = 25°C)
• Operating supply voltage range from 1.95 to 3.6V (VDD = 2.5V, T = 25°C)
• Output data rate is 100Hz typ (one-shot mode, VDD = 2.5V, T = 25°C, over 50 to 110kPa)
• Board mount drift is ±0.15kPa typ (after solder reflow, VDD = 2.5V, T = 25°C, over 50 to 110kPa)
• 98ASA002260D package
• Operating temperature range from -40 to +85°C