Digital differential pressure sensor
The SDP600 and SDP610 supply a digital I2C output signal with a measuring range of -500 to +500 Pa. Even at low differential pressures (less than 10 Pa), the sensor achieves outstanding accuracy and sensitivity. This performance is based on a dynamic measuring principle in which the differential pressure is determined using intrinsic flow measurement. The SDP600 series sensors are not affected by offset and drift errors and feature an outstanding dynamic pressure range. Intelligent packaging with a correspondingly compact package size allows lower manufacturing costs and thus a competitive price. In addition, the high level of integration may reduce the total electronic component count in the applications these fully calibrated sensors are used with.
The new differential pressure sensors are available in two versions. The SDP600 is intended for a direct threaded connection to a pressure manifold via O-ring sealing, while the SDP610 is designed for a hose connection. The outstanding performanceresults from the device’s sensor chip, which is based on Sensirion’s unique, patented CMOSens® technology. With this technology, Sensirion has succeeded in completely integrating a thermal sensor element and full signal conditioning circuitry on a single semiconductor chip. Thanks to large-scale fabrication of CMOSens® devices, these microchips can be produced in large volume with consistently high quality.
The SDP600 series is especially well suited for use with medical equipment and HVAC applications (heating, ventilation, air conditioning). For example, the sensors can be used to increase the functional scope and energy efficiency of burner controllersand artificial respiration devices. This in turn enhances comfort and leads to significant cost reductions.