New Miniature Pressure Sensor from STMicroelectronics
Tiny sensor leveraging ST MEMS expertise boosts smartphone support for location-based services and new high-value apps
The new LPS25H miniature barometric pressure sensor from STMicroelectronics enables a wide range of new
mobile apps with enhanced location based sensing.
The LPS25H is a MEMS (Micro-Electro-Mechanical Systems) sensor, benefiting from ST's position as the world's top MEMS supplier and owner of over 900 MEMS-related patents and patent applications worldwide. The unique features of this sensor include enhanced temperature compensation which allows apps to perform consistently in changing environments. In addition, auto-zero capability allows instant accuracy upon entering a building together with additional value-added features like thresholds and interrupts. In addition to mobile applications, ST's LPS25H is also used in wearable, industrial, and smart-home systems.
Commenting on the first design wins by the LPS25H, Francesco Italia, General Manager, High-End Sensor and Analog Division, STMicroelectronics, said, “ST's new pressure sensor combines advanced functionality and best-in-class quality, giving our customers the confidence to deliver innovative new products to market ahead of the curve. We expect new smartphones containing the LPS25H to enjoy considerable success, offering great features that deliver significant added value for end users.”
The tiny 2.5mm x 2.5mm x 1mm sensor occupies minimal space and has very low operating current of 4µA to preserve battery life. Ultra low-noise design helps ensure accuracy to within ±0.2mbar.
Features of the New LPS25HB Absolute Pressure Sensor
- 260 to 1260 hPa absolute pressure range
- High-resolution mode: 0.01 hPa RMS
- Low power consumption
- Low-resolution mode: 4 µA
- Low current & noise mode with FIFO: 4.5 µA
- High overpressure capability: 20x full scale
- Embedded temperature compensation
- 24-bit pressure data output
- ODR from 1 Hz to 25 Hz
- SPI and I²C interfaces
- Embedded FIFO
- Interrupt functions: Data Ready, FIFO flags, pressure thresholds
- Supply voltage: 1.7 to 3.6 V
- High shock survivability: 10,000 g
The LPS25H has now been replaced by the LPS25HB, for more information on the LPS25HB pressure sensor, visit the ST Website at
STMicroelectronics LPS25HB product page
The company's Web site address is www.st.com.
[Reprinted with kind permission from STMicroelectronics]