SMI (Silicon Microstructures, Inc.), a subsidiary of Elmos, is proud to introduce the SM3041 fully digital, medium pressure MEMS differential and gauge sensor family. The sensor has better than 1% initial accuracy and less than 1% accuracy shift over life (1% shift over 1000 hr HTOL at 150 °C). This makes it one of the most stable medium pressure sensors in the market. Furthermore it is the first SMI sensor with the AccuStable marking. Only products combining an extraordinary accuracy with a long-time stability are allowed to have this high quality label.
The pressure sensor family is developed with special focus on the following markets: Medical (ventilators, oxygenators, wound therapy, fluid evacuation and others), Industrial (gas flow, pneumatic gages, pressure switches) and Consumer (sport equipment, appliances). The manufacturing line is qualified to the highest industry standards (ISO9001 & ISO/TS 16949).
The SM3041 Series is developed and manufactured with state-of-the-art pressure transducer technology and CMOS mixed signal processing technology. It produces a digital, fully signal conditioned output. The integrated temperature compensation ranges from –20 °C to +85 °C. Standard differential parts are offered at +5 and +15 psi, but the device can be fully customized per customer requirements anywhere in the range of +2.5 psi to +15 psi. The SM3041 family has an I2C digital communication interface. The device is offered in several JEDEC SOIC16 package configurations, with dual vertical ports, dual horizontal ports or a single vertical port.
Combining the pressure sensor with a signal-conditioning ASIC in a single package simplifies their use. The pressure sensor can be mounted directly on a standard printed circuit board and a 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.
