This datasheet describes the HP203B, a high-resolution barometric pressure, altitude, and temperature sensor with an I²C interface.
The HP203B is a high-precision sensor that integrates a silicon piezoresistive pressure element with a 24-bit delta-sigma ADC. It provides direct digital output for pressure, absolute altitude, and temperature values using internal compensation algorithms running at 4 MHz.
The device features an I²C interface supporting operating voltages from 1.8V to 3.6V. Key specifications include a pressure measurement range of 300 to 1200 mbar, a resolution of 0.1 meters for altitude, and low power consumption with a standby current of less than 0.1 µA. This manual is written in Chinese.
| Supply Voltage Range | 1.8V ~ 3.6V |
|---|---|
| Pressure Measurement Range | 300 mbar ~ 1200 mbar |
| Altitude Resolution | 10 cm (0.1 m) |
| Standby Power Consumption | < 0.1 µA |
| Operating Temperature Range | -40 ~ +85°C |
| Dimensions | 3.8 x 3.6 x 1.2 mm |
The sensor supports an extended pressure range from 300 mbar to 1200 mbar.
The device offers a high-resolution altitude measurement with 10 cm precision.
Yes, every unit is individually calibrated at the factory, and users generally do not need to perform further calibration.