产品概览
The MPL115A2 is a miniature digital barometer from NXP Semiconductors featuring a piezoresistive pressure sensor with I2C digital output. It measures absolute pressure from 50 to 115 kPa with 1 kPa accuracy over the -40°C to +105°C temperature range, housed in a compact LGA-8 (3 x 5 x 1.2 mm) package.
主要规格
- Pressure Range: 50 kPa ~ 115 kPa (500 ~ 1150 hPa)
- Accuracy: ±1 kPa (at 25°C, 50-105 kPa)
- Resolution: 0.15 kPa (1.5 hPa)
- Interface: I2C (up to 400 kHz)
- Supply Voltage: 2.375V ~ 5.5V
- Supply Current: 5 µA active (1 sample/s), 1 µA standby
- Conversion Time: 1 ms typical (pressure), 1 ms (temperature)
- Internal ADC: 10-bit pressure, 11-bit temperature
- Calibration: Factory-trimmed coefficients stored in on-chip EEPROM
- Operating Temperature: -40°C ~ +105°C
- Package: LGA-8 (3 x 5 x 1.2 mm)
特点
- Ultra-low power consumption: 5 µA at 1 sample/second
- Digital I2C output eliminates external ADC
- Factory-calibrated with on-chip compensation coefficients
- Integrated temperature sensor for thermal compensation
- Compact LGA package for space-constrained designs
- Auto-shutdown between conversions for minimal power
应用
- Weather stations and barometric altitude measurement
- GPS dead reckoning and altitude aiding
- Smartphones and tablets (weather and floor detection)
- HVAC systems and indoor navigation
- Altimeter and variometer for drones