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A CMOS rotary encoder system based on magnetic pattern analysis with a resolution of 10b per rotation
Kawahito, S.; Takahashi, T.; Nagano, Y.; Nakano, K.;
Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International
6-10 Feb. 2005
Page(s):240
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596 Vol. 1
Abstract:
A single-chip CMOS magnetic rotary encoder system based on magnetic pattern analysis is presented. Magnetic sensor arrays are integrated with ADCs and DSP circuits and fabricated in a standard 0.25 /spl mu/m CMOS technology. The chip detects the rotation angle within an error of /spl plusmn/0.36 degrees (10b per rotation).
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