期刊
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
卷 6, 期 4, 页码 336-343出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBCAS.2011.2179030
关键词
CMOS; energy harvesting; implantable device; neuromorphic; photovoltaic cell; subthreshold
资金
- Silicon Research Corporation (SRC)
An energy-autonomous, photovoltaic (PV)-driven and MRI-compatible CMOS implantable sensor is presented. On-chip P+/N-well diode arrays are used as CMOS-compatible PV cells to harvest mu W's of power from the light that penetrates into the tissue. In this 2.5 mm x 2.5 mm sub-mu W integrated system, the in-vivo physiological signals are first measured by using a subthreshold ring oscillator-based sensor, the acquired data is then modulated into a frequency-shift keying (FSK) signal, and finally transmitted neuromorphically to the skin surface by using a pair of polarized electrodes.
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