LPS25H Datasheet, PDF (1/45 Pages) STMicroelectronics – Embedded temperature compensation

LPS25H
MEMS pressure sensor: 260-1260 hPa absolute
digital output barometer
Datasheet - not recommended for new design
Applications
• Altimeter and barometer for portable devices
• GPS applications
• Weather station equipment
• Sport watches
HCLGA-10L
(2.5 x 2.5 x 1.0 mm)
Features
• 260 to 1260 hPa absolute pressure range
• High-resolution mode: 1 Pa RMS
• Low power consumption:
– Low resolution mode: 4 µA
– High resolution mode: 25 µA
• High overpressure capability: 20x full scale
• Embedded temperature compensation
• Embedded 24-bit ADC
• Selectable ODR from 1 Hz to 25 Hz
• SPI and I²C interfaces
• Embedded FIFO
• Supply voltage: 1.7 to 3.6 V
• High shock survivability: 10,000 g
• Small and thin package
• ECOPACK^® lead-free compliant
Description
The LPS25H is an ultra compact absolute
piezoresistive pressure sensor. It includes a
monolithic sensing element and an IC interface
able to take the information from the sensing
element and to provide a digital signal to the
external world.
The sensing element consists of a suspended
membrane realized inside a single mono-silicon
substrate. It is capable to detect the absolute
pressure and is manufactured with a dedicated
process developed by ST.
The membrane is very small compared to the
traditionally built silicon micromachined
membranes. Membrane breakage is prevented
by an intrinsic mechanical stopper.
The IC interface is manufactured using a standard
CMOS process that allows a high level of
integration to design a dedicated circuit which is
trimmed to better match the sensing element
characteristics.
The LPS25H is available in a cavity holed LGA
package (HCLGA). It is guaranteed to operate
over a temperature range extending from -30 °C
to +105 °C. The package is holed to allow
external pressure to reach the sensing element.
Order code
LPS25HTR
LPS25H
Table 1. Device summary
Temperature range [°C]
Package
-30 to +105
HCLGA-10L
Packing
Tape and reel
Tray
April 2016
DocID023722 Rev 5
This is information on a product still in production but not recommended for new designs.
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