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 The MS5637 is an ultra-compact micro altimeter that is optimized for altimeter and barometer applications in Smart-phones and Tablet PCs. The altitude resolution at sea level is 13 cm of air. The sensor module includes a high-linearity pressure sensor and an ultra-low power 24 bit ΔΣ ADC with internal factory-calibrated coefficients.
The MS5637 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 MS5637 can be interfaced to any microcontroller with I2C-bus interface.
The communication protocol is simple, without the need of programming internal registers in the device. Small dimensions of 3 x 3 x 0.9 mm³ allow the integration in mobile devices. 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.
| Features: |
| • QFN package 3 x 3 x 0.9 mm³ |
• High-resolution module, 13 cm |
| • Supply voltage: 1.5 to 3.6 V |
• Fast conversion down to 0.5 ms |
| • Low power, 0.6 μA (standby ≤ 0.1 μA at 25°C) |
• Integrated digital pressure sensor (24 bit ΔΣ ADC) |
| • Operating Range: 300 to 1200 mbar, -40 to +85 °C |
• I2C interface |
| • No external components (internal oscillator) |
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| Applications: |
| • Smart-phones |
• Tablet PCs |
| • Personal navigation devices |
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