Browsing by Author "Elmallah, A"

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    A high performance MEMS based digital-output gyroscope
    (IEEE, 2013) Ismail, A; George, B; Elmallah, A; Mokhtar, A; Abdelazim, M.; Elmala, M; Elshennawy, A; Omar, A; Saeed, M; Mostafa, I; Elsayed, A
    In this work, the architecture, and measurements results of an ultra-low noise closed-loop force feedback gyroscope, with superior bias instability, are presented. The MEMS is interfaced to a highly programmable capacitive interface ASIC, constructing a complete sensor module with a digital-output. Measurements results indicate the superior performance of the gyroscope, with a bias instability of 1°/hr, a noise floor of 1.3m/s/√Hz, and a full-scale range of ±300°/s, while consuming 25mA from a 5V supply.
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    A self-clocked ASIC interface for MEMS gyroscope with 1m°/s/√Hz noise floor
    (IEEE, 2011) Elsayed, A; Elshennawy, A; Elmallah, A; Shaban, Ahmad; George, B; Elmala, M; Ismail, A; Wassal, A; Sakr, M; Mokhtar, A; Hafez, M; Hamed, A; Saeed, M; Samir, M; Hammad, M; Elkhouly, M; Kamal, A; Rabieah, M; Elghufaili, A; Shaibani, S; Hakami, I; Alanazi, T
    An interface for MEMS gyroscope is implemented in 0.18μm HVCMOS technology, and achieves a low noise floor of 1m°/sec/√Hz over 200Hz BW. Electromechanical ΣΔ force-feedback and self-clocking scheme based on gyro resonance are implemented. The interface includes on-chip reference generation, decimation, and temperature compensation.