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STMicroelectronics Electronic Components Datasheet

LPS33K Datasheet

MEMS pressure sensor

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LPS33K
Datasheet
MEMS pressure sensor: 300-1200 hPa absolute digital output barometer with
potted gel package
Product status link
LPS33K
Product summary
Order code LPS33KTR LPS33K
Temp.
range [°C]
-40 to +85
Package
CCLGA-4L
3.3 x 3.3 x (max) 2.9 mm
Packing
Tape and
reel
Tray
Features
• Pressure sensor with potted gel package
• 300 to 1200 hPa absolute pressure range
• Current consumption down to 4 µA
• High overpressure capability: 20x full scale
• Embedded temperature compensation
• 24-bit pressure data output
• 16-bit temperature data output
• ODR from 1 Hz to 75 Hz
• I²C interfaces
• Supply voltage: 1.7 to 3.6 V
ECOPACK lead-free compliant
Applications
Wearable devices
• Altimeters and barometers for portable devices
• GPS applications
• Weather station equipment
• e-cigarettes
Description
The LPS33K is an ultra-compact piezoresistive pressure sensor which functions as a
digital output barometer. The device comprises a sensing element and an IC
interface which communicates through I²C from the sensing element to the
application.
The sensing element, which detects absolute pressure, consists of a suspended
membrane manufactured using a dedicated process developed by ST.
The LPS33K is available in a ceramic LGA package with 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 harsh environmental conditions.
DS12817 - Rev 3 - May 2020
For further information contact your local STMicroelectronics sales office.
www.st.com


STMicroelectronics Electronic Components Datasheet

LPS33K Datasheet

MEMS pressure sensor

No Preview Available !

LPS33K
Block diagram and pin description
1
Block diagram and pin description
Figure 1. Block diagram
p
MUX
I2C
Sensing
element
Temperature
sensor
Sensor bias
Voltage and
current bias
Clock and timing
Figure 2. Pin connections (bottom view)
4
1
3
2
Pin number
1
2
3
4
Table 1. Pin description
Pin name
GND
VDD
SCL
SDA
0 V supply
Power supply
I²C serial clock
I²C serial data
Function
DS12817 - Rev 3
page 2/31



Part Number LPS33K
Description MEMS pressure sensor
Maker STMicroelectronics
Total Page 3 Pages
PDF Download

LPS33K Datasheet PDF





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