AMSYS GmbH & Co. KG, Mainz, December 2021 – With the air pressure sensor MS5837, AMSYS offers two pressure range variants of a miniaturized pressure sensor for absolute pressure with high resolution. The sensors are calibrated and provide the measured values as I²C digital output signal.
The reflowable air pressure sensors are designed for pressure ranges of 300–1’200 mbar (MS5837-02BA03) and 0–30 bar (MS5837-30BA) and are protected with a gel coating. In addition to the pressure, they also measure the temperature.
The MS5837 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 sensors convert the measured pressure- and temperature-dependent signal of the measuring cell into a 24-bit data word, then stored in the EPROM. In addition, 6 individual coefficients are stored, allowing a 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.
MS5837 sensors are intended for applications within a digital system. With an existing processor at system level, temperature can be easily calculated.
AMSYS offers as further variants the MS5839, with chlorine-resistant gel protection and a grove board that can be used to quickly evaluate sensors and build prototypes.
The Company
AMSYS GmbH & Co. KG is a medium-sized company from Germany that has specialized in innovative solutions in the field of sensor technology since its founding. As a sensor technology distributor, AMSYS is one of the leading specialists in pressure measurement technology in German-speaking countries.
The AMSYS product range includes piezoresistive pressure sensing elements, SMD-mountable transducers, amplified and unamplified as well as calibrated OEM sensors, PCB modules, and ready-to-use pressure transmitters. With sensors and pressure sensing elements covering a pressure range from 25 Pa to 800 bar, AMSYS provides solutions for a wide variety of applications. In addition, the portfolio includes OEM humidity sensors, temperature and inclination sensors, as well as wireless solutions for diverse use cases.
Thanks to the technical expertise of its employees and close collaboration with suppliers, AMSYS also offers customer-specific adaptations of standard products, delivering tailored problem-solving solutions.
Outstanding features
- Pressure ranges absolut: 300–1‘200 mbar or 0 – 30 bar
- Temperature range: -40..+85 °C
- Resolution pressure: 0.016 mbar (MS5837-02BA03) / 0.2 mbar (MS5837-30BA)
- Resolution temperature: 0.002 °C
- Supply voltage 1.5–3.6 V
- Low power consumption: 0.6 μA (standby <0.1 μA)
- I²C interface
- Ceramic substrate with metal cap: 3.3 x 3.3 x 2.75 mm³
- RoHS and REACH compliant
