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Jul 12th, 2014
 
Omron – highly-accurate MEMS pressure sensors can detect height differences of just 50cm
 
A highly-accurate new absolute pressure sensor, from Omron Electronic Components Europe, can detect height differences of as little as 50cm.
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Based on Omron’s MEMs technology, the tiny sensor module can measure altitude, atmospheric pressure or water depth in products such as wearable electronics, activity monitors, industrial and marine instruments and mobile phones and cameras.

The 2SMPB-01-01 is the company’s most accurate pressure sensor to date, providing readings relative to a perfect vacuum to ±6Pa. The module is just 3.8mm x 3.8mm x 1 mm maximum, small enough to integrate into portable instruments. It provides an I2C output for easy integration into digital electronics.

The sensor uses piezo resistance in a full bridge circuit to detect pressure, and is fully temperature compensated giving an absolute temperature accuracy of ±2C. The 2SMPB-01-01 offers the benefit of low power consumption of just 9µA typical, further simplifying its integration into portable and other battery powered electronic systems.

The 2SMPB-01-01 can operate in three different power modes: standard, high-accuracy and low-power mode. The surface-mount device is housed in an 8-pin QFN package.

 

 
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