BMP390 datasheet(3/59 Pages) BOSCH

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Bosch Sensortec | BMP390 Datasheet

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Modifications reserved |Data subject to change without notice | Printed in Germany

Document number: BST-BMP390-DS002-07 Revision_1.7_032021

Key features

Table 1: Key Features of BMP390

Package

2.0 mm x 2.0 mm x 0.75 mm metal lid LGA

Digital interface

I²C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)

Supply voltage

VDD main supply voltage range: 1.65 V to 3.6 V

VDDIO interface voltage range: 1.2 V to 3.6 V

Relative accuracy

typ. ± 3 Pa, equiv. to ± 0.25 m

(700 … 1100 hPa, 25 . . . 40 °C )

Absolute accuracy

typ. ± 50 Pa

(300 ...1100 hPa, -0 ...+65 °C)

Temperature coefficient offset

mean value ± 0.6 Pa/K

(25 – 40°C @900 hPa)

Current consumption

3.2 µA at 1 Hz pressure and temperature

1.4 µA in sleep mode

Operating range

-40 ‒ +85 °C, 300‒1250 hPa

The product is RoHS compliant, halogen-free, MSL1

BMP390 enables accurate altitude tracking and is specifically suited for mobile applications. The best-in-class TCO between

-20-65°C for accurate altitude measurement over a wide temperature range of the BMP390 greatly enhance use cases like

indoor navigation and localization. It is compatible for use with other Bosch sensors, including the IMUs like BMI260 for better

performance, robustness and stability. The new BMP390 sensor offers outstanding design flexibility, providing a single

package solution that can also be easily integrated into other existing and upcoming devices such as smartphones, wearables

smart homes and industrial products.

The sensor is more accurate than its predecessor BMP380, covering a wide measurement range from 300 hPa to 1250 hPa.

This new barometric pressure sensor exhibits an attractive price-performance ratio coupled with low power consumption.

It is available in a compact 10-in 2.0 x 2.0 x 0.75 mm³ LGA package with metal lid

Due to the built-in hardware synchronization of the pressure sensor data and its ability to synchronize data from external

devices such as acceleration sensors, the BMP390 is ideally suited for fitness and navigation applications which require

highly accurate, low power and low latency sensor data fusion.

The new interrupt functionality provides simple access to data and storage. Examples of interrupts than can be used in a

power efficient manner without using software algorithms include: Data ready interrupt, watermark interrupt (on byte level)

or FIFO full interrupt.

BMP390 also includes a new FIFO functionality. This greatly improves ease of use while helping to reduce power

consumption of the overall device system during full operation. The integrated 512 byte FIFO buffer supports low power

applications and prevents data loss in non-real-time systems.

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