The SM9231 and SM9331 are digital, ultra-low pressure MEMS sensors offering state-of-the-art pressure transducer technology and CMOS mixed signal processing technology to produce a digital, fully conditioned, multi-order pressure and temperature compensated sensor in JEDEC standard SOIC-16 package with dual vertical ports. It is available in gauge and differential pressure configurations.
Combining the pressure sensor with a signal-conditioning ASIC in a single package simplifies the use of advanced silicon micro-machined pressure sensors. The pressure sensor can be mounted directly on a standard printed circuit board and a high level, calibrated pressure signal can be acquired from the digital interface. This eliminates the need for additional circuitry, such as a compensation network or microcontroller containing a custom correction algorithm.
Please contact SMI Sales for the SM9x31 datasheet.
|Pressure Range||+/-125 Pa, +/- 250 Pa, 0-250 Pa|
|Comp. Temp. Range||-20°C to +85°C|
|Port Type||Dual Vertical|
|Digital Interface||I2C or SPI, 16 bit|
|Analog Output||10% to 90% of VDD|
|Supply Voltage||3.3 V/5 V|
Flow and Pressure Measurement in Respiratory Medical Equipment
The movie illustrates the benefits of using the SM9000 Family and the SM6000 Family for air flow control in respiratory medical equipment.