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|Title:||A Monolithically Integrated Pressure/Oxygen/Temperature Sensing SoC for Multimodality Intracranial Neuromonitoring||Authors:||Chan, Wai Pan
Cheong, Jia Hao
George, Arup K.
Cheam, Daw Don
Leong, Siew Chong
Damalerio, Maria Ramona B.
Rahman, Abdur R. A.
Park, Mi Kyoung
Kong, Zhi Hui
Prashanth, Rao Jai
|Keywords:||Capacitance to voltage converter (CVC)
capacitive pressure sensor
|Issue Date:||2014||Source:||Chan, W. P., Narducci, M., Gao, Y., Cheng, M.-Y., Cheong, J. H., George, A. K., et al. (2014). A Monolithically Integrated Pressure/Oxygen/Temperature Sensing SoC for Multimodality Intracranial Neuromonitoring. IEEE Journal of Solid-State Circuits, 49(11), 2449-2461.||Series/Report no.:||IEEE Journal of Solid-State Circuits||Abstract:||A fully integrated SoC for multimodality intracranial neuromonitoring is presented in this paper. Three sensors including a capacitive MEMS pressure sensor, an electrochemical oxygen sensor and a solid-state temperature sensor are integrated together in a single chip with their respective interface circuits. Chopper stabilization and dynamic element matching techniques are applied in sensor interface circuits to reduce circuit noise and offset. On-chip calibration is implemented for each sensor to compensate process variations. Measured sensitivity of the pressure, oxygen, and temperature sensors are 18.6 aF/mmHg, 194 pA/mmHg, and 2 mV/°C, respectively. Implemented in 0.18 m CMOS, the SoC occupies an area of 1.4 mm × 4 mm and consumes 166 μW DC power. A prototype catheter for intracranial pressure (ICP) monitoring has been implemented and the performance has been verified with ex vivo experiment.||URI:||https://hdl.handle.net/10356/81671
|ISSN:||0018-9200||DOI:||10.1109/JSSC.2014.2345754||Rights:||© 2014 IEEE.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
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