Build with BME280 — Datasheet Specs & AI Design Help

00 — Overview

What the BME280 does

The BME280 is a combined digital humidity, pressure, and temperature sensor housed in a compact 2.5 mm x 2.5 mm metal lid LGA package. It features a supply voltage range of 1.71 V to 3.6 V, current consumption as low as 0.1 µA in sleep mode, and a humidity response time of 1 second. The device offers an accuracy tolerance of ±3% for relative humidity and an RMS noise of 0.2 Pa for pressure measurements. Engineers typically use this component for context awareness, fitness monitoring, home automation control, indoor navigation, and weather forecasting in battery-driven devices like handsets, watches, and GPS units.

Next step

Start building with BME280 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for BME280
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	2.8 µA	4.2 µA	1 Hz forced mode, pressure and temperature, lowest power; Pressure parameter specification	Bosch datasheet, p. 10 — Table 3: Pressure parameter specification
supply voltage range	1.71 V	1.8 V	3.6 V	ripple max. 50 mVpp; Electrical parameter specification	Bosch datasheet, p. 8 — Table 1: Electrical parameter specification
abs max voltage (abs max)	-300 mV	—	4.25 V	VDDand VDDIOpin	Bosch datasheet, p. 13 — Table 5: Absolute maximum ratings
operating temperature	-40 °C	25 °C	85 °C	operational; Pressure parameter specification	Bosch datasheet, p. 10 — Table 3: Pressure parameter specification
standby current	—	100 nA	300 nA	Electrical parameter specification	Bosch datasheet, p. 8 — Table 1: Electrical parameter specification

02 — Alternatives

Closest matches to BME280

BMP388 1.1× lower abs max voltage, 1.1× higher quiescent current, 1.1× higher sample rate

BMP180 2.0× lower standby current, 1.7× higher quiescent current, 1.4× higher supply voltage range

TMP102 4.2× higher quiescent current, 1.8× higher supply voltage range, 1.7× higher operating temperature

MAX31820 3.8× higher standby current, 1.9× higher supply voltage range, 1.4× higher operating temperature

MAX31820MCR+ 3.8× higher standby current, 1.9× higher supply voltage range, 1.4× higher operating temperature

DHT22 2.3× higher supply voltage range, 1.2× lower operating temperature, similar standby current

ICM-42607-C 4.4× higher sample rate, 1.1× lower operating temperature, similar supply voltage range

LSM6DS3TR-C 18.3× higher sample rate, 15.0× higher standby current, 1.1× lower operating temperature

03 — FAQ

Frequently asked questions

What is the absolute maximum voltage allowed on the VDD and VDDIO pins?

The absolute maximum voltage on the VDD and VDDIO pins is 4.25 V.

What is the operating temperature for the BME280 during operational pressure parameter specification?

The operating temperature is 25 °C.

What is the quiescent current of the BME280 in 1 Hz forced mode with pressure and temperature sensing in lowest power configuration?

The quiescent current is 2.8 µA.

What is the standby current of the BME280?

The standby current is 100 nA under Electrical parameter specification.

What is the supply voltage range for the BME280 under the condition of ripple max. 50 mVpp?

The supply voltage range is 1.8 V.