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OB1203

Renesas
Part Number OB1203
Manufacturer Renesas
Description Light and Color Sensor
Published Jun 4, 2020
Detailed Description Heart Rate, Blood Oxygen Concentration, Pulse Oximetry, Proximity, Light and Color Sensor OB1203 Datasheet Description...
Datasheet PDF File OB1203 PDF File

OB1203
OB1203

Overview
Heart Rate, Blood Oxygen Concentration, Pulse Oximetry, Proximity, Light and Color Sensor OB1203 Datasheet Description The Renesas OB1203SD and OB1203LC Sensor Modules integrate an optical biosensor with proximity sensor and ambient light sensing features that are desirable for handheld electronic devices.
The OB1203 photoplethysmography (PPG) biosensor integrates light sources and drivers, analog digital conversion and I2C communication in a single optical package.
Data from the OB1203 biosensor can be used to determine heart rate (HR), oxygen saturation (SpO2), respiration rate (RR), and heart rate variability (HRV), a measure of stress.
The OB1203LC features photodiodes admitting light across the visible and near infrared range, while the OB1203SD features color filters with RGB color and Lux sensitivity similar to the human eye.
The OB1203SD optical filters provide enhanced immunity to ambient light for proximity sensing (PS) and PPG measurements.
The OB1203’s longer wavelength far red (690nm) LED is less sensitive to the differences between light and dark skin tones than traditional sensors operating at shorter wavelengths where melanin absorption is stronger.
The far red LED also enables SpO2 measurements behind visibly dark “IR ink” for aesthetic industrial designs.
Biosensor Features  SpO2 measurement less sensitive to skin color  Industry’s smallest optical biosensor module  Fully integrated and trimmed module, including two LEDs, 250mA maximum drive current, and photodetectors  PPG output resolution: 16 to 18 bits  Data stored in 18-bit wide, 32-sample FIFO memory  Integrated averaging function for higher signal-to-noise ratio (SNR) and data rate reduction  Programmable measurement rate: up to 3200 samples per second Light Sensor and Color Sensor* (OB1203SD) Features  Output resolution: 13 to 20 bits, 3 gain modes  Very stable spectral response over angle of light incidence  *High lux accuracy over different light sources  *Absolute sensitivit...


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