Descriptions
The HP5804 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,

KEY FEATUREs
◾ Operation temperature: -40~85℃
◾ Supply voltage: 1.8V to 3.6V
◾ Pressure range: 30mBar ~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

APPLICATIONs
◾ 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.
◾ Panel computer
◾ Barometers