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The paper presents a DeltaSigma sensor for a capacitive micro-accelemeter. The prototype was fabricated with a 0.25 mum CMOS technology with MIM capacitors. The silicon area of the front-end is 0.49 mm2. The chip was combined with an external plusmn2g capacitive 3-axis accelerometer on a PCB.This DeltaSigma sensor front-end IC draws 1.5 muA from a 1V supply while sampling three proof masses, each...
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