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This pressure sensor is based on the pressure sensor MS5540C, the MS5540C is a SMD-hybrid device including a precision piezoresistive pressure sensor and an ADCInterface IC. It is a miniature version of the MS5534C barometer/altimeter module and provides a 16 Bit data word from a pressure and temperature dependent voltage. MS5540C is a low power, low voltage device with automatic power down (ON/OFF) switching. A 3-wire interface is used for all communications with a microcontroller.
The gel protection of the sensor provides a water protection sufficient for 100 m waterproof watches without any additional protection. Please note that for this breakout board, it is apparently not waterproof.
- Operating Voltage 2.2 V ~ 3.6 V
- Absolute Pressure Range: 10 - 1100 mbar
- Resolution: 0.1 mbar and 0.01 °C
- Operating Temperature: -40 ° C to + 85 ° C
- Operating Current: <5uA
- Interface: 3-wire serial
- Dimensions: 18.6 x 16mm
- Weight: 1.8g