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
• 4.5x4.5x2.5mm

• 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