Product Description
The HP303B is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy and a low current consumption, capable of measuring both pressure and temperature. The pressure sensor element is based on a capacitive sensing principle which guarantees high precision during temperature changes. The small package makes the HP303B ideal for mobile applications and wearable devices.

FEATUREs
• 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

Typical Applications
• Indoor Navigation (floor detection e.g. in shopping malls and parking garages)
• Health and Sports (accurate elevation gain and vertical speed)
• Outdoor Navigation (GPS start-up time and accuracy improvement, dead-reckoning e.g. in tunnels)
• Weather Station(Micro-weather and local forecasts)
• HDD drivers, (leak rate detection in hard disk drives)
• Drones (flight stability and height control)