PRECISION BAROMETER AND ALTIMETER SENSOR
The HP5834 employs a MEMS pressure sensor with an I2C interface to provide accurate Temperature, Pressure data. The sensor Pressure and Temperature outputs are digitized by a high resolution 24-bit ADC. The Altitude value is calculated by a specific patented algorithm according to the pressure and temperature data. Data compensation is integrated internally to save the effort of the external host MCU system. Easy command-based data acquisition interface and programmable interrupt control is available. Typical active supply current is 5.3uA per measurement-second while the ADC output is filtered and decimated by 256. Pressure output can be resolved with output in fractions of a Pascal.
Operation temperature: -40~85℃
Supply voltage: 1.8V to 3.6V
Pressure range: 0mBar ~2000mBar
Programmable events and interrupt controls
High-speed I2C digital output interface (Up to 10 MHz)
Fast conversion down to 2ms
Standby current <0.1uA, low conversion power, 2uA at 1 sample/sec.
Water proof design can use in 100m
Hermetically sealable for outdoor devices
Sealing designed for 2.8 x 0.8mm O-ring
Mobile Altimeter / Barometer
Industrial Pressure and Temperature Sensor System
Adventure and Sports watches
Weather Station Equipment
Indoor Navigation and Map Assist
Data loggers for pressure, temperature and altitude.