BMP280

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BMP280

+BOM

SENSOR 15.95PSIA 16BIT 8SMD

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Specifications

Attribute Value
Part Status Obsolete
Base Product Number BMP280
Applications Board Mount
Pressure Type Absolute
Operating Pressure 4.35PSI ~ 15.95PSI (30kPa ~ 110kPa)
Output Type I2C, SPI
Output 16b
Accuracy ±0.015PSI (±0.1kPa)
Voltage - Supply 1.71V ~ 3.6V
Port Style No Port
Features Standby Mode
Termination Style SMD (SMT) Tab
Maximum Pressure 290.08PSI (2000kPa)
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SMD
Supplier Device Package 8-SMD
Packaging Tape & Reel (TR)

Overview

Description

The BMP280 is a high-performance sensor developed by Bosch Sensortec, designed for accurate measurement of atmospheric pressure and temperature. It's commonly used in various applications such as weather monitoring, altimeters, and IoT devices. The sensor operates on low power, making it ideal for mobile and battery-powered devices.
Key features of the BMP280 include a digital output with I2C and SPI interfaces, allowing easy integration with microcontrollers and embedded systems. It offers high precision with an absolute accuracy of ±1 hPa for pressure and ±1°C for temperature. The sensor's compact design (2.0 mm x 2.5 mm) makes it suitable for space-constrained projects.
The BMP280 supports pressure ranges from 300 hPa to 1100 hPa, equating to altitudes from sea level to 9,000 meters. Its fast response time and high resolution enable quick and reliable data acquisition. Additionally, its temperature compensation ensures consistent performance across different environmental conditions. Overall, the BMP280 is a versatile and efficient option for applications requiring precise atmospheric measurements.

Equivalent

The BMP280 is a barometric pressure sensor from Bosch Sensortec. Equivalent products include:
1. BME280: Also from Bosch Sensortec, it includes humidity sensing.
2. DPS310: From Infineon Technologies, offers similar pressure sensing capabilities.
3. MPL3115A2: From NXP Semiconductors, includes altitude and temperature sensing.
4. LPS22HB: From STMicroelectronics, features similar pressure and temperature sensing.
5. MS5611: From TE Connectivity, provides high-resolution pressure and altitude measurements.
These alternatives offer similar functionalities with slight variations in features and specifications.

Features

The BMP280 is a high-precision sensor designed for environmental sensing in consumer electronics. Its key features include:
1. Pressure Sensing: It offers high-resolution pressure measurement, capable of detecting changes as small as 1 Pa, which is equivalent to approximately 8.5 cm of altitude difference.
2. Temperature Measurement: The sensor also measures temperature, providing accurate readings crucial for compensating pressure data.
3. Low Power Consumption: Ideal for battery-powered applications, it consumes minimal power, making it suitable for mobile and wearable devices.
4. Compact Size: The small form factor allows easy integration into various applications without compromising device design.
5. Digital Interface: It supports both I2C and SPI interfaces, enabling easy communication with microcontrollers and other digital systems.
6. Altitude Calculation: Useful in applications needing altitude estimation, such as drones and fitness devices.
7. Wide Range: Operates effectively over a broad range of temperatures and pressures, making it versatile for different environments.
These features make the BMP280 a popular choice for applications in weather stations, smartphones, and GPS devices.

Pinout

The BMP280 is a barometric pressure and temperature sensor from Bosch Sensortec. It typically comes in a small form factor with the following pin count and functions:
1. VCC (or VIN): Power Supply (1.71V to 3.6V).
2. GND: Ground.
3. SCL: Serial Clock Line for I2C interface or Serial Clock for SPI interface.
4. SDA (or SDI/SDO in SPI mode): Serial Data Line for I2C interface or Serial Data Input/Output for SPI interface.
5. CSB (Chip Select, optional in some configurations): Chip Select for SPI interface, typically active low.
The BMP280 can operate in both I2C and SPI communication modes. In I2C mode, the SCL and SDA lines are used. In SPI mode, SCL, SDI, and CSB lines are used for communication, with the SDO pin serving as the output line.
This sensor is commonly used for altitude measurement, weather forecasting, and indoor navigation due to its high precision and low power consumption.

Manufacturer

The BMP280 is manufactured by Bosch Sensortec, a subsidiary of Robert Bosch GmbH. Bosch Sensortec specializes in developing and manufacturing microelectromechanical systems (MEMS) sensors for applications in consumer electronics, including smartphones, wearable devices, and the Internet of Things (IoT). Bosch Sensortec is known for its innovation and expertise in providing sensors that enhance the functionality and user experience of electronic devices. The company is a part of the larger Bosch Group, which is a multinational engineering and technology company based in Germany, renowned for its automotive components, industrial products, consumer goods, and building technologies.

Application

The BMP280 is a barometric pressure sensor used in various applications. Its primary uses include weather monitoring, where it measures atmospheric pressure to predict changes. In altimetry, it helps determine altitude in devices like drones and navigation systems. The sensor is also used in smartphones and wearables for activity tracking, providing elevation data for fitness applications. Additionally, the BMP280 is employed in HVAC systems to monitor air pressure and improve efficiency. It can also enhance GPS accuracy by providing altitude data. Its small size, low power consumption, and high precision make it suitable for diverse applications in IoT devices and automotive systems.

Package

The BMP280 sensor is typically available in a compact LGA (Land Grid Array) package, measuring approximately 2.0 mm x 2.5 mm x 0.95 mm. This package type is designed for integration into various electronic devices, offering a small footprint suitable for mobile and portable applications.

Frequently Asked Questions


Q: What is the operating pressure range of the BMP280?
A: The BMP280 measures absolute pressure from 4.35 PSI to 15.95 PSI (30 kPa to 110 kPa), suitable for barometric sensing.


Q: Does the BMP280 support I2C or SPI communication?
A: Yes, it supports both I2C and SPI interfaces with a 16-bit digital output for flexible system integration.


Q: What is the typical accuracy of this pressure sensor?
A: The accuracy is ±0.015 PSI (±0.1 kPa), ensuring reliable pressure readings for board-mount applications.


Q: Can the BMP280 operate in low-power standby mode?
A: Yes, it features a standby mode to minimize power consumption during inactive periods.


Q: What supply voltage does the BMP280 require?
A: It operates on a supply voltage range of 1.71V to 3.6V, compatible with low-voltage designs.


Q: What is the maximum overpressure the BMP280 can withstand?
A: The maximum rated pressure is 290.08 PSI (2000 kPa), providing robust overload protection.


Q: Is the BMP280 suitable for surface-mount assembly?
A: Yes, it is available in an 8-SMD package with SMT termination, designed for automated surface-mount manufacturing.


Q: What is the operating temperature range of the BMP280?
A: It operates reliably from -40°C to 85°C, making it suitable for diverse environmental conditions.


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