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BMP581

BMP581

Bosch Sensortec
Pressure Sensor 4.35PSI ~ 18.13PSI (30kPa ~ 125kPa) Absolute 10-WFLGA
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Overview

The BMP581 is a high-performance absolute barometric pressure sensor designed for applications requiring extreme precision and low power consumption. It features a wide operating range of 30kPa to 125kPa with an absolute accuracy of +/-0.05kPa and an ultra-low noise floor of 0.08 Pa. The sensor includes integrated features like a FIFO buffer, programmable interrupts, and I3C support for advanced digital communication.

Why Choose This Part

It offers industry-leading power efficiency, consuming only 1.3 microamps at 1Hz in low power mode. The inclusion of an on-chip FIFO and programmable low-pass filtering reduces host MCU overhead and simplifies system integration. Furthermore, it supports the I3C interface, enabling higher data rates and lower power communication compared to standard I2C.

Applications

Indoor Navigation
Floor level detection in mobile devices and robots due to high relative accuracy and low noise.
Fitness Tracking
Precise altitude change monitoring for calorie expenditure and step counting in wearables.
Industrial IoT
Water level monitoring and air flow measurement in harsh industrial environments.
Drones and UAVs
Altitude hold and stability control through high-speed, low-latency pressure sensing.

Key Specifications

Accuracy +/-0.01PSI (+/-0.05kPa)
Port Style No Port
Output Type I2C, SPI
Mounting Type Surface Mount
Pressure Type Absolute
Package / Case 10-WFLGA
Voltage - Supply 1.65V ~ 3.6V
Operating Pressure 4.35PSI ~ 18.13PSI (30kPa ~ 125kPa)
Operating Temperature -40degC ~ 85degC
Supplier Device Package 10-LGA (2x2)

Getting Started

Start development with the Bosch Sensortec Shuttle Board 3.0 to quickly interface the sensor with a microcontroller via I2C or SPI. Drivers and API source code are available through Bosch Sensortec's GitHub repositories, which include ready-to-use C libraries for sensor configuration and data readout. Ensure the 1.65V to 3.6V supply voltage requirements are met and consider using the internal NVM for storing user-specific calibration or configuration data.