The MS5803 is a new generation of high resolution altimeter sensors with SPI & I2C interface. There are various models up to 30 bar. The sensor module includes a high linearity pressure sensor with an ultra low power 24 bit ADC with internal factory calibrated coefficients.
It provides a precise digital 24 bit pressure and temperature values and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation of an altimeter/thermometer function without an additional sensor. Gel protection and an anti-magnetic stainless steel cap allows the use in 100m waterproof altimeter/compass watches.
Features
- Pressure ranges from 10 to 1300 mbar up to 30 bar depending on the model
- High resolution of 10 cm (-01ba model)
- 20 cm resolution (-02ba model)
- Fast conversion down to 1 ms
- Supply voltage 1.8 to 3.6V
- Integrated temperature sensor
- Temperature range -40°C to 85°C
- I2C or SPI interface up to 20 MHz
- No external components (internal oscillator)
- RoHS-compatible & Pb-free
- Low power, 1 µA
- Hermetically sealable for outdoor devices
Typical Uses
- Mobile altimeter/barometer systems
- Bike computers
- Adventure or multi-mode watches
- Variometers
- Dataloggers