LPS225HB Datasheet, PDF (1/47 Pages) STMicroelectronics – Embedded temperature compensation

LPS225HB
MEMS pressure sensor: 26 - 126 kPa absolute
digital output barometer
Datasheet - production data
HLGA 8L
2.0 x 2.5 x 0.8 (max) mm
Features
 26 to 126 kPa absolute pressure range
 High-resolution mode: 1 Pa RMS
 Low-power mode: 3.5 Pa RMS
 Current consumption down to 4 μA
 High overpressure capability: 20x full scale
 Embedded temperature compensation
 Embedded 24-bit ADC
 ODR from 1 Hz to 75 Hz
 SPI and I²C interfaces
 Embedded FIFO
 Interrupt functions: Data Ready, FIFO flags,
pressure thresholds
 Supply voltage: 1.7 to 3.6 V
 Small and thin package
 ECOPACK^® lead-free compliant
Applications
 Altimeters and barometers for portable devices
 GPS applications
 Weather station equipment
 Sport watches
Description
The LPS225HB is an ultra-compact piezoresistive
absolute pressure sensor. It includes a monolithic
sensing element and an IC interface which
communicates a digital signal from the sensing
element to the application.
The sensing element, which detects absolute
pressure, consists of a suspended membrane
inside a single mono-silicon substrate and is
manufactured using 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 characteristics of the
sensing element.
The LPS225HB is available in a full-mold, holed
LGA package (HLGA). 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.
Order code
LPS225HBTR
Table 1. Device summary
Temperature range [°C]
Package
-40 to +85°C
HLGA-8L
Packing
Tape and reel
February 2017
This is information on a product in full production.
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