Figure - available from: Analog Integrated Circuits and Signal Processing
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This paper presents an integrated switched-capacitor-based low-power fully-differential analog front-end (AFE) for simultaneously detecting electrocardiogram (ECG) and respiration rate (RR). A current-driven passive mixer is used to up-convert the RR signal, and a preamplifier including a driven-ground common-mode feedback (CMFB) loop amplifies bot...
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