Measurement Specialties' MS5806-02BA is optimized for altimeters and variometers with an altitude resolution of 20 cm. The sensor module includes a high-linearity pressure sensor and an ultra-low-power 24-bit ΔΣ ADC with internal factory-calibrated coefficients. It provides a precise digital 24-bit pressure and temperature value 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 any additional sensor.

• High-resolution module, 20 cm
• Fast conversion, down to 1 ms
• Low power, 1 µA (standby <0.15 µA)
• Integrated digital pressure sensor (24-bit ΔΣ ADC)
• Supply voltage 1.8 V to 3.6 V
• Extended pressure range: 10 mBar to 2000 mBar
• SPI and I²C interface (mode 0, 3)
• Hermetically sealable for outdoor devices

• Mobile altimeters
• Barometric systems
• Bike computers
• Adventure watches
• Data-loggers