MS5637 Industrial Altimeter Pressure Sensor Development Board

The MS5637 is an ultra-compact micro altimeter. It 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 ?S 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 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. The sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal.

• QFN package 3 x 3 x 0.9 mm3
• high resolutionn module, 13 cm
• Supply voltage: 1.5V 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 ?S ADC)
• Operating range: 300 to 1200 mbar, -40°C to +85 °C
• I2C interface
• No external components like internal oscillators etc