Número de pieza
ADPD144RI
componentes Descripción
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Fabricante
Analog Devices
ADPD144RI Hoja de datos - Analog Devices
Analog Devices
GENERAL DESCRIPTION
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.
FEATURES
2.8 mm × 5.0 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, 8.5 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
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