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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