BME680

Part: BME680 — Bosch Sensortec

Type: Digital gas, pressure, humidity and temperature sensor (4-in-1 environmental sensor)

Description: 4-in-1 digital environmental sensor with VDD of 1.71–3.6 V, I²C (up to 3.4 MHz) and SPI (up to 10 MHz) interfaces, in a 3.0 × 3.0 mm metal-lid LGA package with 0.15 μA typical sleep current.

Operating Conditions:

• Supply voltage: VDD 1.71–3.6 V; VDDIO 1.2–3.6 V
• Operating temperature: -40 to +85 °C
• Operating range: 0–100 % r.H., 300–1100 hPa

Absolute Maximum Ratings:

• Max supply voltage: 4.25 V (VDD and VDDIO pins)
• Max interface pin voltage: VDDIO + 0.3 V
• Storage temperature: -45 to +85 °C (≤ 65 % r.H.)
• ESD: ±2 kV HBM, ±200 V machine model

Key Specs:

• Sleep current: 0.15 μA typ, 1 μA max
• Standby current: 0.29 μA typ, 0.8 μA max
• Current during humidity measurement: 340 μA typ, 450 μA max (max at 85 °C)
• Current during pressure measurement: 714 μA typ, 849 μA max (max at -40 °C)
• Current during temperature measurement: 350 μA typ (at 85 °C)
• Gas sensor heater supply current: 12 mA typ (9–13 mA), at 320 °C heater target, VDD ≤ 1.8 V, 25 °C
• Gas sensor average current (IAQ): 0.09 mA ultra-low power, 0.9 mA low power, 12 mA continuous
• Start-up time: 2 ms max
• Humidity accuracy tolerance ±3 % r.H.; hysteresis ±1.5 % r.H.
• Pressure RMS noise 0.12 Pa; offset temperature coefficient ±1.3 Pa/K

Features:

• Gas, humidity, pressure and temperature sensing in one package
• I²C (up to 3.4 MHz) and SPI (3- and 4-wire, up to 10 MHz) interfaces
• Individual humidity, pressure and gas sensors can be enabled or disabled independently
• Indoor air quality (IAQ) index output of 0–500 via BSEC software
• Gas sensor response time below 1 s for new sensors
• RoHS compliant, halogen-free, MSL1

Applications:

• Indoor air quality
• Home automation and control
• Internet of things
• Weather forecast
• GPS enhancement and indoor/outdoor navigation
• Vertical velocity indication
• Handsets, wearables, smart watches, home appliances

Package:

• 3.0 mm × 3.0 mm × 0.93 mm metal-lid LGA

• Package

3.0 mm x 3.0 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

2.1 μA at 1 Hz humidity and temperature

3.1 μA at 1 Hz pressure and temperature

3.7 μA at 1 Hz humidity, pressure and temperature

0.09 - 12 mA for p/h/T/gas depending on operation mode

0.15 μA in sleep mode

• Operating range

-40 - +85 °C, 0 - 100% r.H., 300 - 1100 hPa

• Individual humidity, pressure and gas sensors can be independently enabled/disabled

• The product is RoHS compliant, halogen-free, MSL1

• Indoor air quality
• Home automation and control
• Internet of things
• Weather forecast
• GPS enhancement (e.g. time-to-first-fix improvement, dead reckoning, slope detection)
• Indoor navigation (change of floor detection, elevator detection)
• Outdoor navigation, leisure and sports applications
• Vertical velocity indication (rise/sink speed)

The absolute maximum ratings are determined over the complete temperature range using corner lots. The values are provided in Table 9.

Table 9: Absolute maximum ratings

• Indoor air quality
• Home automation and control
• Internet of things
• Weather forecast
• GPS enhancement (e.g. time-to-first-fix improvement, dead reckoning, slope detection)
• Indoor navigation (change of floor detection, elevator detection)
• Outdoor navigation, leisure and sports applications
• Vertical velocity indication (rise/sink speed)

Picture 13: Package dimensions for top, bottom and side view