Transcription of PPG Optical Sensor Module with Integrated Red/IR …
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PPG Optical Sensor Module with Integrated Red/IR …
PPG Optical Sensor Module with Integrated Red/IR Emitters and AFE Data Sheet ADPD144RI Rev. A Document Feedback Information furnished by analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, Box 9106, Norwood, MA 02062-9106, Tel: 2019 analog Devices, Inc. All rights reserved. Technical Support FEATURES mm mm Module with Integrated Optical components 660 nm LED, 880 nm IR LED, and photodiode Fully Integrated AFE, ADC, LED drivers, and timing core Custom Optical package for use under a glass window Programmable 2-channel, mA to 370 mA LED drivers Provision to use external LED emitters Low power Specifically designed for ultralow direct Optical reflections Independent AFE settings per channel I2C data and control interface Burst accumulator enabling 20 bits per sample period Sample to sample accumulator enabling up to 27 bits per data read 16-bit or 32-bit register or FIFO readout per channel APPLICATIONS Optical heart rate monitoring Reflective SpO2 measurement GENERAL DESCRIPTION The AD
The ASIC consists of a 4-channel analog front end (AFE) with two independently configurable datapaths with separate gain and filter settings, a 14-bit analog-to-digital converter (ADC) with a burst accumulator, two flexible, independently configurable, LED drivers, and a digital control block. The digital control block provides AFE and LED ...
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