The reflowable sensors are designed for the pressure range of 300 – 1200 mbar (MS5837-02BA03) and 0 – 30 bar (MS5837-30BA) and are media-protected with a gel coating. In addition to the pressure, they measure the temperature from -40 to 85 ° C.
The MS5837 pressure sensors consist of a piezoresistive pressure cell and an amplifier A/D-interface-IC, housed in a QFN package (3.3 x 3.3 x 2.75 mm³). The metal top protects the electronic components and facilitates O-ring mounting. The sensor converts the measured pressure- and temperature-dependent signal of the measuring cell into a 24-bit data word. In addition, 6 individual coefficients are stored in the sensor, which allow the highly accurate software correction for the pressure and temperature measurement by an external microprocessor. The I²C interface is used for serial communication with the microprocessor.
The sensors are intended for applications with a digital system environment. Since there is already a processor at system level, this can be used to easily calculate the current pressure and temperature values.
Accessory for the MS5837
Also available is the USB Development Kit, which can be used to quickly evaluate the sensors and build prototypes.
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