BME280

Part: BME280, Bosch Sensortec

Type: Digital Humidity, Pressure, and Temperature Sensor

Key Specs:

• Package: 2.5 mm x 2.5 mm x 0.93 mm
• Main Supply Voltage (VDD): 1.71 V to 3.6 V
• Interface Supply Voltage (VDDIO): 1.2 V to 3.6 V
• Current Consumption (H+P+T @ 1 Hz): 3.6 µA
• Sleep Mode Current Consumption: 0.1 µA
• Operating Temperature Range: -40 °C to +85 °C
• Operating Humidity Range: 0 % to 100 % rel. humidity
• Operating Pressure Range: 300 hPa to 1100 hPa
• Humidity Response Time (63%): 1 s
• Humidity Accuracy Tolerance: ±3 % relative humidity
• Pressure RMS Noise: 0.2 Pa
• I²C Interface Speed: up to 3.4 MHz
• SPI Interface Speed: up to 10 MHz

Features:

• Digital interface I²C and SPI
• Humidity and pressure sensors can be independently enabled/disabled
• Register and performance compatible to Bosch Sensortec BMP280
• RoHS compliant, halogen-free, MSL1
• Extremely fast humidity response time
• High accuracy and resolution pressure sensor
• Integrated temperature sensor for compensation and ambient temperature estimation
• Three power modes: sleep, normal, forced
• Configurable oversampling, filter modes, and data rates

Applications:

• Context awareness
• Fitness monitoring / well-being
• Home automation control (HVAC)
• Internet of things
• GPS enhancement
• Indoor navigation
• Weather forecast
• Vertical velocity indication
• Handsets (mobile phones, tablet PCs, GPS devices)
• Home weather stations
• Watches

Package:

• Metal lid LGA: 2.5 mm x 2.5 mm x 0.93 mm

• Package 2.5 mm x 2.5 mm x 0.93 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: 1.71 V to 3.6 V

VDDIO interface voltage range: 1.2 V to 3.6 V

• Current consumption 1.8 µA @ 1 Hz humidity and temperature 2.8 µA @ 1 Hz pressure and temperature

3.6 µA @ 1 Hz humidity, pressure and temperature

0.1 µA in sleep mode

• Operating range -40…+85 °C, 0…100 % rel. humidity, 300…1100 hPa

• Humidity sensor and pressure sensor can be independently enabled / disabled

• Register and performance compatible to Bosch Sensortec BMP280 digital pressure sensor

• RoHS compliant, halogen-free, MSL1

The absolute maximum ratings are determined over complete temperature range using corner lots. The values are provided in Table 5.

Table 5: Absolute maximum ratings