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Jan 30th, 2014
 
New capacitive type MEMS pressure sensor from Murata
 
Murata Manufacturing Co., Ltd. (hereinafter "Murata") has developed newly capacitive type MEMS pressure (barometer) sensor (2.3 x 2.6 mm typ.). Samples and pre-production quantities will be delivered to customers in early 2014, with mass production ramping up to support broad market demand by Q4.
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Murata"s capacitive type MEMS pressure sensor.
Murata's capacitive type MEMS pressure sensor.

There is a growing need for the high accuracy and low current consumption pressure sensor especially in the field of navigation and activity monitoring system. Murata will be launching the capacitive type MEMS pressure sensor especially aiming for the consumer market.

For the application of mobile devices, temperature characteristics, noise performance and current consumption are always the key parameters. Murata’s capacitive MEMS technology will enable these key parameters to be at the highest performance level which will lead users to precisely detect the Z axis position, for example, to differentiate between floors and stairs. Murata’s sensor noise level is extremely low (0.5 Pa(rms)). This is equivalent to 5 cm height level.

The product’s application may also be extended to other than mobile navigation, for example healthcare and precise weather forecast information.

Technical data

  • Size: 2.3 × 2.6 mm typ. ×0.95 mm max.
  • Interface: SPI / I2C
  • Operation range: 300 to 1100 hPa
  • Relative accuracy: +/- 0.12 hPa typ. (T= +25 degC, P= 800 to 1100 hPa)
  • Absolute accuracy: +/- 1.0 hPa typ. (T= -10 to +65 degC, P= 800 to 1100 hPa)
  • Electric characteristics

Current consumption/noise level:
Conversion time  RMS noise (spec.)     Current consumption (spec.)
1/12 sec               2.1 Pa(rms)                 4.1 μA
1 sec                    0.5 Pa(rms)                 42 μA

*Average value with One-shot mode at 1 sample/sec

Murata in Brief
Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. With annual revenues of 81 billion (~$6.8B USD), Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world.

 

 
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