Piezoresistive sensors offer stable accuracy
ROHM has announced the BM1383GLV family of piezoresistive pressure sensors which feature pressure accuracy and stable measurement at both low and high temperatures due to a built-in temperature correction function. Built with ROHMs MEMS technology, the piezoresistive 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 optimised 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 through barometric changes and capture movement data, which makes them a suitable 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 2.5x2.5x0.95mm package, the ICs handle a wide pressure range of 300-1100hPA and deliver precise values of absolute as well as relative pressure accuracy. They feature a supply voltage of 1.71-3.6V, an average current of 5uA and operate in a temperature range of -40 to +85°C.
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