Low-Power Photoplethysmogram Acquisition Integrated Circuit with Robust Light Interference Compensation


To overcome light interference, including a large DC offset and ambient light variation, a robust photoplethysmogram (PPG) readout chip is fabricated using a 0.13-μm complementary metal-oxide-semiconductor (CMOS) process. Against the large DC offset, a saturation detection and current feedback circuit is proposed to compensate for an offset current of up to… (More)
DOI: 10.3390/s16010046


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