HP303B采用了成熟的半导体工艺,并兼具超高分辨率、良好的温度稳定性、低功耗运行和小巧的封装尺寸,允许开发人员改善各种应用的功能,提升用户体验,包括从辅助定位和导航,到运动和健身,再到实时天气监测。
HP303B可在很大的温度范围内实现精确而又稳定的性能,特别适用于室内导航和辅助定位应用,如购物广场和停车场的楼层检测,以及户外导航——在这类应用中,它有助于提高导航精度,或者在无法获得GPS信号时,支持“航位推算法”。此外,它能够为计算海拔升高和垂直速度提供准确数据,适用于移动和可穿戴健康和运动设备的活动追踪特性;同时,超高精度压力测量,也为手势识别和探测天气变化提供了新的可能性。
产品规格参数:
• Operation range: Pressure: 300 –1200 hPa. Temperature: -40 – 85 °C.
• Pressure sensor precision: ± 0.005 hPa (or ±0.05 m) (high precision mode).
• Relative accuracy: ± 0.06 hPa (or ±0.5 m)
• Absolute accuracy: ± 1 hPa (or ±8 m)
• Temperature accuracy: ± 0.5°C.
• Pressure temperature sensitivity: 0.5Pa/K
• Measurement time: Typical: 27.6 ms for standard mode (16x). Minimum: 3.6 ms for low precision
mode.
• Average current consumption: 1.7 µA for Pressure Measurement, 1.5uA for Temperature
measurement @1Hz sampling rate, Standby: 0.5 µA.
• Supply voltage: VDDIO: 1.2 – 3.6 V, VDD: 1.7 – 3.6 V.
• Operating modes: Command (manual), Background (automatic), and Standby.
• Calibration: Individually calibrated with coeicients for measurement correction.
• FIFO: Stores up to 32 pressure or temperature measurements.
• Interface: I2C and SPI (both with optional interrupt)
• Package dimensions: 8-pin LGA 3.6 mm x 3.8 mm x 1.2 mm.
• Green Product (RoHS) Compliant