SDP810-125PA

The SDP810-125PA from Sensirion is a digital differential pressure sensor with tube connection. It is designed for high volume applications. The sensor measures pressure of air and non-aggressive gases with superb accuracy and no offset drift. It delivers outstanding accuracy at bottom end of measuring range. The SDP800 features a digital 2-wire interface which makes it easy to connect directly to a microprocessor. The outstanding performance of this sensor is based on Sensirion’s patented CMOSens sensor technology which combines sensor element, signal processing and digital calibration on small CMOS chip. The differential pressure is measured by a thermal sensor element using flow through technology. The well proven CMOS technology is suitable for high quality mass production and it is ideal choice for demanding & cost sensitive OEM applications. It is also in HVAC, gas boilers, pellet stoves and fuel cells, filter monitoring, VAV control, heat recovery.

• Excellent accuracy & repeatability, no drift, no offset, hysteresis free
• Extended feature set, smart averaging, outstanding accuracy and long term stability
• Calibrated temperature range from -20°C to 85°C, measurement time from 40ms to 50ms
• High reliability, best signal to noise ratio, <lt/>3ms flow step response time, 16bit resolution
• 25ms power-up time, 2ms soft reset time, 400KHz I2C SCL frequency, 0.5ms measurement speed
• 3V to 5.5V supply voltage, 3.8mA (measuring), 1.1mA (idle state), 1uA (sleep mode) supply current
• Measurement range from -125Pa to 125Pa (-0.5 to 0.5inch H2O), calibrated for air, N2
• 0.08Pa zero point accuracy, 3% of reading span accuracy, 0.04Pa zero point repeatability
• 0.5% of reading span repeatability, less than 0.05Pa/year offset stability
• Less than 0.5% of reading per 10°C span shift due to temperature variation

Applications

Sensing & Instrumentation, Medical