STMicroelectronics LPS28DFW
The LPS28DFW is an ultra-compact piezoresistive absolute pressure sensor which functions as a digital output barometer. The device comprises a sensing element and an IC interface which communicates over the I²C or MIPI I3CSM interface from the sensing element to the application. The LPS28DFW provides lower power consumption, achieving lower pressure noise than its predecessor.FEATURES
● Dual full-scale absolute pressure with water-resistant package – Mode 1: 260 ~ 1260 hPa – Mode 2: 260 ~ 4060 hPa● Current consumption down to 1.7 μA
● Absolute pressure accuracy: 0.5 hPa
● Low pressure sensor noise: 0.32 Pa
● Embedded temperature compensation
● 24-bit pressure data output
● ODR from 1 Hz to 200 Hz
● I²C or MIPI I3CSM interface
● Embedded FIFO
● Interrupt functions: data-ready, FIFO flags, pressure thresholds
● Supply voltage: 1.7 to 3.6 V
● Easily sealed package with O-ring
● ECOPACK lead-free compliant
APPLICATIONS
● Wearables● Altimeters and barometers for portable devices
● GPS applications
● Weather station equipment
● Sport watches
● e-cigarettes
● Water depth monitoring
DESCRIPTION
The LPS28DFW is available in a ceramic LGA package with a metal lid. It is guaranteed to operate over a temperature range extending from -40 °C to +85 °C. The package is holed to allow external pressure to reach the sensing element. Gel inside the IC protects the electrical components from water and the metal cap is, optionally, connected to ground or left floating electrically in the application PCB layout.