Bosch Sensortec BMP581 is a compact, low-power 24-bit absolute barometric pressure sensor for altitude tracking, indoor localization/navigation, wearables, smart-home and industrial devices. It supports I²C, I3C and SPI and is supplied in a metal-lid LGA package.
Standard specifications
| Product model | BMP581 |
|---|---|
| Sensor type | barometric_pressure_sensor |
| Supply voltage | VDD 1.65–3.6 V; VDDIO 1.08–3.6 V |
| Calibration | Factory-trimmed; on-chip linearization and temperature compensation |
| Data interface | I2C|I3C|SPI |
| Ingress protection | No IP rating stated in the cited Bosch sources |
| Operating temperature | −40 to +85 °C |
| Dimensions | 2.0 × 2.0 × 0.75 mm metal-lid LGA package |
Technical extensions
Pressure range: 300–1250 hPa. Official BMP581 data: absolute pressure range 300–1250 hPa; absolute accuracy ±30 Pa typical under 300–1100 hPa and −5…65 °C; relative accuracy ±6 Pa typical under 700–1100 hPa and 15–55 °C; pressure noise 0.08 Pa; temperature coefficient of offset ±0.5 Pa/K; long-term drift ±0.1 hPa over 12 months; solder drift ±0.3 hPa. Typical current is 1.3 µA at 1 Hz and 0.5 µA in standby; continuous-mode sampling reaches 480 Hz. The product-page summary and datasheet attach different stated conditions to accuracy values; the conditions are retained explicitly from the technical documentation.
Sources: Bosch Sensortec BMP581 product page; BMP581 product flyer; BMP581 datasheet.
