TE Connectivity MS5803-14BA Digital Pressure & Temperature Sensor, 0-14 bar, I2C/SPI, 24-bit MEMS, -40°C to +85°C

The MS5803-14BA supports both I2C and SPI digital communication protocols. This dual-interface design provides maximum flexibility for integration with a wide range of microcontrollers, from low-power embedded systems to industrial PLCs, without requiring additional level shifters or interface chips.

The sensor operates from a supply voltage of 1.8V to 3.6V, making it compatible with 3.3V and many low-power battery systems. It features ultra-low power consumption, with active current around 1 µA and a standby current below 0.15 µA, ideal for battery-powered or energy-harvesting applications.

Yes, it is specifically designed for such applications. Its absolute pressure measurement from 0 to 14 bar, combined with high resolution (0.2 mbar), allows for precise water depth calculation. The gel-filled, stainless steel housing provides water resistance, and the integrated temperature sensor enables accurate depth compensation.

No, the sensor is factory calibrated. Calibration coefficients are stored in its internal PROM and are automatically used by the onboard 24-bit ADC to provide compensated digital outputs for pressure and temperature, eliminating the need for user-side calibration or complex register programming.

The sensor can withstand an overpressure of up to 30 bar. This rating, which is more than double its operational range of 14 bar, provides a significant safety margin against pressure spikes or surges in hydraulic systems, enhancing the long-term reliability and durability of the sensor in harsh industrial environments.