Honeywell's Upgraded Low-pressure Plastic Silicon Pressure Sensors Improve Performance And Could Reduce Manufacturing Costs

These low-pressure sensors are intended for use with non-corrosive, non-ionic working fluids, such as air and dry gases. Potential industrial and medical applications include barometry, flow calibrators, gas-flow instrumentation, sleep apnea/therapy equipment, pneumatic controls, and ventilation/airflow monitors.

The ASDX and ASDX-DO Series pressure sensors are fully calibrated and temperature compensated for sensor offset, sensitivity, temperature effects, and non-linearity using an on-board Application Specific Integrated Circuit (ASIC). Calibrated output values for pressure are updated at approximately 1 kHz.

The ASDX Series with compensated analog output provides a ratiometric 12 bit analog output for reading pressure over the specified full scale pressure span and temperature range, typically allowing for fast and easy integration into standard electronic circuits. The ASDX-DO Series with compensated 14 bit digital output provides either an I2C or SPI digital interface for reading pressure over the specified full scale pressure span and temperature range, minimizing connections, providing higher resolution, and faster performance through reduced conversion requirements and the convenience of direct interface to the microprocessors or microcontrollers.