LPS28DFW STMicroelectronics In Stock
The LPS28DFW is a dual full-scale absolute digital barometer from STMicroelectronics, covering pressure ranges up to 1260 hPa and 4060 hPa in a water-resistant package with a digital output interface. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- —
- Pin Count
- 999
- Lifecycle
- ACTIVE
- Datasheet
- LPS28DFW Datasheet PDF
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LPS28DFW?
- Dual full-scale pressure measurement supporting both 1260 hPa standard barometric range and 4060 hPa extended range for underwater or high-pressure applications
- Water-resistant package construction protects the sensor from moisture ingress in wearables, outdoor, and marine environments
- Absolute digital output eliminates external ADC requirements and simplifies host MCU firmware for altitude and depth sensing
What is LPS28DFW used for?
The LPS28DFW suits altitude-tracking wearables and GPS-assisted navigation devices that need accurate atmospheric pressure readings within the 1260 hPa standard barometric range. Its extended 4060 hPa full-scale range and water-resistant package make it well suited for dive computers, underwater robotics, and pool-depth monitoring applications. The digital output interface integrates directly with low-power microcontrollers in IoT weather stations and portable medical respiratory monitoring equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LPS28DFW datasheet?
LPS28DFW Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for LPS28DFW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the two pressure full-scale ranges available on the LPS28DFW and which applications benefit from each?
The LPS28DFW provides a standard 1260 hPa range for atmospheric barometric altimetry in weather stations and wearables, and an extended 4060 hPa range for underwater depth measurement in dive computers and pool-depth sensors. The 4060 hPa scale corresponds to water depths approaching 30 meters, enabling certified consumer-dive applications at a pressure of approximately 400 kPa absolute.
How does the water-resistant package of the LPS28DFW compare to a standard MEMS barometer package in outdoor product designs?
Standard MEMS barometers use open-cavity packages that expose the pressure port directly to ambient air, making them susceptible to water ingress during rain or washing. The LPS28DFW's water-resistant construction seals the package against liquid while still permitting gas-pressure transmission, allowing IPX7 or IPX8 rated products to integrate a barometer without a separate protective gel-filled housing, saving assembly cost and up to 2 mm of vertical board clearance.
Which digital interface does the LPS28DFW use, and how does that simplify firmware integration on a 3.3 V microcontroller?
The LPS28DFW provides a digital output using standard I2C or SPI communication at 3.3 V logic levels, allowing direct connection to most modern microcontrollers without level shifters. Reading a pressure sample requires only a few register transactions, and the absolute digital output format means no external 16-bit ADC or bridge conditioning circuit is needed, reducing firmware complexity and BOM count.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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