Descriptions

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.

Key Features

• 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

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