Browsing by Author "Omar, A"

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    Electronic interface system with 7.5/12.5V actuation for MEMS accelerometer
    (IEEE, 2017) Elmala, MA; Omar, A; Metawea, A; Ismail, A; Elmallah, AS; Saeed, AI; Elsayed, A; Bensaleh, MS; Obeid, AM; Alghofaili, A; Alzahem, I; Alshaibani, S; Alnahdi, M; Aljehani, N; Bhybha, A; Qasim, SM
    An electronic interface system for MEMS accelerometer is implemented in 0.18μm HVCMOS technology. The ASIC uses 7.5/12.5V to increase the net actuation force and increases the input acceleration range. The measured ASIC sensitivity is 35fF/g. Maximum measured error is 0.38% of full scale, for 0 to 5g input acceleration. This ASIC interface includes on-chip reference generation, decimation, and temperature compensation.
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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.