LDES250UE6S

LDES250UE6S is a LDE series digital low diffrential pressure sensor. It is based on thermal flow measurement of gas through a micro-flow channel integrated within the sensor chip. The innovative LDE technology features superior sensitivity especially for ultra-low pressures. The extremely low gas flow through the sensor ensures high immunity to dust contamination, humidity and long tubing compared to other flow-based pressure sensors. Quality management system according to EN ISO 13485 and EN ISO 9001. Media compatibility is with air and other non-corrosive gases. Applications includes medical (ventilators, spirometers, CPAP, sleep diagnostic equipment, nebulizers, oxygen conservers/concentrators, insufflators/endoscopy), industrial (HVAC, VAV, filter monitoring, burner control, fuel cells, gas leak detection, gas metering, fume hood, instrumentation and security systems.

• Pressure sensor based on thermal microflow measurement
• High flow impedance, very low flow-through leakage, high immunity to dust and humidity
• No loss in sensitivity using long tubing, calibrated and temperature compensated
• Unique offset autozeroing feature ensuring superb long-term stability
• Offset accuracy better than 0.2% FS, total accuracy better than 0.5% FS typical
• On-chip temperature sensor, analog output and digital SPI interface, no position sensitivity
• Supply voltage VS range from 4.75VDC to 5.25VDC, output current is 1mA
• Operating tempearture range from -20 to +80°C, non-ratiometric 5V supply output
• 0 to 250Pa / 0 to 2.5mbar (1 inH2O) operating pressure, 2bar proof and 5bar burse pressure
• Unidirectional calibration, SMD-2 ports same side housing