Pressure Sensors

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ME780
PRESSURE RANGE fso (bar) 0.5-1-2-5-10-20-50-100-200-400-600 bar
PRESSURE TYPE GAUGE - SEALED GAUGE - ABSOLUTE
TECHNOLOGY PIEZORESISTIVE CERAMIC PRESSURE SENSOR
DIAMETER (mm) 18.00 mm
STRUCTURE FLUSH DIAPHRAGM
THERMAL DRIFT %FS/°C CALIBRATED
SIGNAL CONDITIONING YES, INTEGRATED ELECTRONICS
OFFSET 0.5 V, ratiometric output
TERMINATION PITCH 3 pads, 2.54 mm
SIGNAL OUTPUT 0.5..4.5 V - RATIOMETRIC

Metallux ME78x and MEP78x pressure sensors are made with a ceramic base cell and a flush diaphragm and work following the piezoresistive principle. The Wheatstone bridge is screen printed on one side of the flush ceramic diaphragm which, is in turn, glued to the sensor’s body. The bridge faces the inside where a cavity is made. Signal conditioning electronics are directly integrated on the ceramic to generate 0.5…4.5 V ratiometric output (ME780) or I2C digital output code (ME782). Pressure and temperature calibration are done electronically with the onboard ASIC and can be performed in bar (ME78x) or in psi (MEP78x). Electronics provides offset and span correction when the temperature changes. Aging detection and compensation are constantly performed. This new method guarantees good precision and long-term stability. The Metallux ME78x family meets EMI requirements. The ASIC stores production lot specific data for sensor traceability and allows custom calibration. Due to the excellent chemical immunity of the the Al2O3 ceramic, the ME78x sensors are suitable for nearly all aggressive media. Metallux ME78x are patented pressure sensors.