The ADPD144RI is a highly integrated, photometric front end
optimized for photoplethysmography (PPG) detection of blood
oxygenation (SpO2) by synchronous detection in red and infrared
wavelengths. Synchronous measurement allows rejection of both
dc and ac ambient light interference with extremely low power
consumption.
https://www.analog.com/media/en/technical-documentation/data-sheets/ADPD144RI.pdf
https://www.analog.com/media/en/technical-documentation/data-sheets/ADPD144RI.pdf
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