Compact pressure sensor IC assures accuracy over a wide temperature range

20-02-2015 | ROHM Semiconductor | Test & Measurement

Rohm has unveiled its new family of BM1383GLV piezo-resistive pressure sensors which feature class-leading pressure accuracy and stable measurement at both low and high temperatures due to a built-in temperature correction function. Build with proprietary MEMs technology the piezo-resistive sensing element outputs a signal which is proportional with the atmospheric pressure. This signal is processed by an integrated logic using proprietary algorithms. This allows achieving high accuracy pressure information which is stable for the full temperature range. In addition the sensor is optimized for low power consumption especially for high accurate measurements. The build-in I2C interface ensures easy access to the measurement results in any kind of mobile or battery driven application. For instance, the sensor can detect differences in height (altitude) through pressure changes and capture movement data which makes them an ideal solution for use in wearable devices, activity monitors, altimeters and advanced detection for indoor navigation in smartphones and tablets. Housed in a robust and compact 2.5mm x 2.5mm x 0.95mm package, the ICs handle a wide pressure range of 300hPA to 1100hPA and deliver precise values of absolute as well as relative pressure accuracy. They feature a supply voltage of 1.71 to 3.6V, an average current of 5uA and operate in a temperature range of -40C to 85C.

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