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It 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. The MS5805-02BA can be interfaced  to virtually  any  microcontroller. The  communication protocol is simple, without the need of programming internal registers in the device. The sensing principle employed leads to very low hysteresis and high stability of  both pressure and temperature signal.

BENEFITS

  • High resolution module, 20 cm 
  • Fast conversion down to 0.5 ms 
  • Low power, 0.6 µA (standby < 0.15 µA at 25°C) 
  • Integrated digital pressure sensor (24 bit ΔΣ ADC)  
  • Supply voltage 1.8 to 3.6 V 
  • Operating range: 300 to 1200 mbar, -40 to +85 °C 
  • Extended pressure range: 10 to 2000 mbar  
  • I2C interface 
  • No external components (Internal oscillator) 
  • Excellent long term stability
  • Sealing designed for 2.5 x 1mm O-ring

 

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Digital Pressure and Altimeter Sensor Modules

  • Type  Absolute

Electrical Characteristics

  • Supply Voltage (V) 1.8 – 3.6

Dimensions

  • Dimensions 4.5 x 4.5 mm [ .17 x .17 in ]

Usage Conditions

  • Operating Temperature -40 – 85 °C [ -40 – 185 °F ]

Operation/Application

  • Output/Span  24 bit ADC

  • Resolution  .02

  • Accuracy  ±4mbar

  • Output Interface  I²C

  • Overpressure  5 bar

Packaging Features

  • Package  Surface Mountable

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This information has been provided to you free of charge for your use but remains the sole property of Tyco Electronics Corporation ("TE"). While TE has used reasonable efforts to ensure its accuracy, TE does not guarantee that it is error-free, nor makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. TE expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.