STMicroelectronics LPS22DF
Low-power and high-precision MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer
LPS22DFTR is a low-power and high-precision MEMS nano pressure sensor, absolute digital output barometer. It is an ultra-compact piezoresistive absolute pressure sensor which functions as a digital output barometer. This provides lower power consumption, achieving lower pressure noise than its predecessor. The device comprises a sensing element and an IC interface which communicates over I²C, MIPI I3CSM or SPI interfaces from the sensing element to the application and supports a wide Vdd IO range for the digital interfaces as well. The sensing element, which detects absolute pressure, consists of a suspended membrane manufactured using a dedicated process developed by ST. The package is holed to allow external pressure to reach the sensing element. Typical applications are altimeters and barometers for portable devices, GPS applications, weather station equipment, sport watches, e-cigarettes, drones, gas metering.
Key features
- 260 to 1260 hPa absolute pressure range
- Current consumption down to 1.7 μA
- Absolute pressure accuracy: 0.2 hPa
- Robustness to soldering stress: 0.15 hPa
Additional features
- High-performance TCO is 0.45Pa/°C, supply voltage range from 1.7 to 3.6V
- Embedded temperature compensation, 24-bit pressure data output
- ODR from 1Hz to 200Hz
- Supports 1.08V digital interface
- Interrupt functions: data-ready, FIFO flags, pressure thresholds
- HLGA-10L package
- SPI, I²C or MIPI I3CSM interfaces
- Embedded FIFO
- Temperature rating range from -40 to +85°C
Applications
- Altimeters and barometers for portable devices
- GPS applications
- Weather station equipment
- Sport watches
- e-cigarettes
- Drones
- Gas metering
Available tools
STEVAL-MKIT04KA:
MEMS Sensors generation 3 sample kit based on LIS2DUXS12, LPS22DF, LSM6DSV16X
The STEVAL-MKIT04KA is composed by four different adapters DIL24: the STEVAL-MKI224V1, the STEVAL-MKI227A contained in the STEVAL-MKI227KA adapter kit, the STEVAL-MKI235A contained in the STEVAL-MKI235KA adapter kit, the STEVAL-MKE003A contained in the STEVAL-MKI227KA and STEVAL-MKI235KA adapter kit.
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