Title :
A novel ASIC interface for gas flow sensor
Author :
Ayman, M. ; Elhebeary, M.R. ; Kishk, M.A. ; Abdelbary, E. ; Ezz, M. ; Mohsen, M. ; Abolmagd, H. ; Hafez, A.
Author_Institution :
Dept. of Electron. & Electr. Commun. Eng., Cairo Univ., Cairo, Egypt
Abstract :
Electronic gas flow meters are expected to replace the current mechanical devices. One of the promising solutions is based on thermal MEMS sensor. In this paper, a novel system is introduced that combines a MEMS gas flow sensor and its interface circuit. A 15 bits ASIC is implemented to interface the sensor to an external processor through a standard serial communication. The CMOS 0.13 micrometer ASIC consumes total power of 2.67mW when operating in the continuous read mode. On-demand read mode is supported to lower the power consumption. The total system SNR is 86dB.
Keywords :
CMOS integrated circuits; application specific integrated circuits; flow sensors; flowmeters; gas sensors; low-power electronics; microsensors; ASIC interface circuit; CMOS micrometer ASIC; MEMS gas flow sensor; electronic gas flow meters; gas flow sensor; on-demand read mode; power 2.67 mW; power consumption; size 0.13 mum; Application specific integrated circuits; Micromechanical devices; Power demand; Sigma-delta modulation; Signal to noise ratio; Voltage measurement;
Conference_Titel :
System Integration (SII), 2014 IEEE/SICE International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4799-6942-5
DOI :
10.1109/SII.2014.7028123
