Product Introduction
The BMP581 is an absolute barometric pressure sensor. Its small dimensions, its low power consumption and the highest performance allow the implementation in a wide range of applications.
Features
- Temperature operating range: -40 .. 85°C
- Ultra low noise: < 0.1 PaRMS natively (without low-pass filter enabled)
- 1.3 µA at 1Hz in low power mode
- Absolute pressure accuracy: ± 0.5 hPa (max)
- Relative pressure accuracy: 0.06 hPa per 10 kPa step
- Pressure Temperature-induced offset: ± 0.5 Pa/K
- Programmable low-pass filtering
- On-chip FIFO buffer for up to 32 pressure samples
- Programmable interrupts, including pressure-changed detection
- 6 bytes user programmable non-volatile memory
- RoHS compliant, halogen and lead free
Applications
- Enhancement of GPS navigation (e.g. time-to-first-fix improvement, dead-reckoning, slope detection)
- Indoor navigation (floor detection, elevator detection)
- Outdoor navigation
- Sports applications like calorie counting, fitness activity identification
- Emergency caller location
- Weather forecast
- Vertical velocity indication (e.g. rise/sink speed)
- Altitude control of drones and flying toys
- Handsets such as mobile phones, tablet PCs, GPS devices
- Navigation systems
- Portable health care devices
- Home weather stations
- Drones and flying toys
- Smart watches
- Virtual and augmented reality devices
Specifications Table
| Pressure Operating Range |
30~125 kPa |
| Temperature Operating Range |
-40~85 °C |
| Absolute Pressure Accuracy |
± 0.5 hPa (max) |
| Relative Pressure Accuracy |
0.06 hPa per 10 kPa step |
| Pressure Temperature-induced Offset |
± 0.5 Pa/K |
| Ultra Low Noise |
< 0.1 PaRMS |
| Current Consumption (1Hz Low Power Mode) |
1.3 µA |
| Output Data Rate (CONTINUOUS Mode) |
Up to 480 Hz |
| Output Data Rate (NORMAL Mode) |
0.125~240 Hz |
| Supply Voltage VDD |
1.71 V~3.6 V |
| Supply Voltage VDDIO |
1.08 V~3.6 V |
| Digital Interface |
SPI (4-wire, 3-wire), I3C, I²C (Fm+) |
| SPI Clock Frequency |
12 MHz |
| I3C Clock Frequency |
12.5 MHz |
| I²C Clock Frequency |
Up to 1 MHz |
| FIFO Buffer |
Up to 32 pressure samples |
| Non-volatile Memory |
6 bytes user programmable |
| Package Type |
10-pin metal-lid LGA |
| Package Footprint |
2.0 × 2.0 mm² |
| Package Height |
Max 0.8 mm |
To learn more, please download the PDF.