Silicon Microstructures, Inc. (SMI) SM933x Differential Pressure Sensors

Picture for category Silicon Microstructures, Inc. (SMI) SM933x Differential Pressure Sensors

01 November 2018

Silicon Microstructures SM933x Differential Pressure Sensors are high precision sensors for ultra low-pressure measurements. The SM933x sensors offer state-of-the-art Micro-ElectroMechanical Systems (MEMS) pressure transducer technology and CMOS mixed signal processing technology. These differential pressure sensors combine pressure sensor with signal-conditioning Application-Specific Integrated Circuit (ASIC) in a single package. 

The SM933x sensors provide less than 1%Full Scale (FS) total accuracy after board mount and system level autozero. These differential pressure sensors mount directly on a circuit board and high level calibrated pressure signal is accessible from the 16-bit I2C digital interface. The SM933x sensors are available in JEDEC standard SOIC-16 package with a dual vertical porting option. These differential pressure sensors provide a pressure calibrated and temperature compensated output. Typical applications include sleep apnea, CPAP, ventilators, pressure transmitters, and airflow measurement.


- 125Pa and 250Pa differential pressure ranges

- <1%FS accuracy after autozero

- 16-bit I2C digital interface

- Pressure calibrated and temperature compensated output

- REACH, RoHS, and PFOS/PFOA compliant

You can check out our sensor products here.