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Interface IC Addresses Capacitive Sensors

Fri, 02/13/2009 - 4:39am

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e2v CPIC2.0Exhibiting a noise level of 30 aF, e2v’s CPIC2.0 interface IC enables acceleration, pressure, altitude, humidity, rain, level, and gas measurements in MEMS transducers with a base capacitance from 1 pF to 32 pF. The component contains a dual capacitor input enabling several configurations, including ?Csens/SCsens. The device embeds a temperature sensor and an EEPROM for storage of calibration parameters, temperature, and pressure compensation and has a microcontroller interface (SPI/TWI). The design can be used for “static” and “dynamic” applications requiring from <1 to 166 samples per second. The unit is available as a standalone device or populated on a daughterboard for use with the CAPRI2 mixed-signal ASIC development kit.

e2v
+44 (0) 1245 493493, www.e2v.com

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