Pressure Sensors

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Pressure Sensor - MS5806-02BA

Applications: Mobile Altimeter/Barometer Systems, Bike Computers, Adventure or Multi-Mode Watches, Variometers, Dataloggers

Industries: Consumer Goods


Datasheet: MS5806-02BA

Description: The MS5806-02BA is a new generation of high resolution altimeter sensors from MEAS Switzerland with SPI and I²C bus interface. It is optimized for altimeters and variometers with an altitude resolution of 20cm. 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. The MS5806-02BA can be interfaced to virtually any microcontroller. The communication protocol is simple, without the need of programming internal registers in the device. The gel protection and antimagnetic stainless steel cap allows the use in 100m water resistant altimeter/compass watches. This new sensor module generation is based on leading MEMS technology and latest benefits from MEAS Switzerland proven experience and know-how in high volume manufacturing of altimeter modules, which has been widely used for over a decade. The sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal.


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



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        Contact Customer Service - Pressure Sensors

        MEAS - Fremont (English)
        45738 Northport Loop West
        Fremont, CA 94538
        United States
        +1 510-498-1570
        +1 510-498-1578 fax
        France, Southern Europe, Africa
        MEAS - LCSB (French)
        26 Rue des Dames
        78340 Les Clayes-sous-Bois
        +33-134-810-359 fax

        France, Southern Europe, Africa
        MEAS Switzerland Sàrl (French, German, English)
        Ch. Chapons-des-Prés 11
        CH-2022 Bevaix
        +41 32 847 9550
        +41 32 847 9569 fax
        Germany, Eastern Europe
        MEAS Deutschland GmbH (German)
        Hauert 13
        44227 Dortmund
        +49 (0) 231 9740 0
        +49 231 9740 20 fax

        U.K., Ireland, Scandinavia
        Galway Customer Service (English)
        Ballybrit Business Park
        Galway, Ireland
        +353 91 782950
        +353 91 705943 fax
        Asia, South Pacific
        Measurement Specialties (China) Ltd. (Chinese, English)
        No. 26 Langshan Road
        Shenzhen High-Tech Park (North)
        Nanshan District, Shenzhen 518057
        +86 755 33305088
        +86 755 33305099 fax