OB1203SD-C4R Electronic Components

The OB1203SD-C4R Electronic Components Sensor Module integrates a multi-channel light sensor (LS/CS), a proximity sensor (PS), and a photoplethysmography sensor (PPG).

The light sensor can be configured as ambient light sensor (LS) to measure ambient light similar to the human eye experience or as an RGB color sensor (CS). The module has a fully integrated biosensor for reflective photoplethysmography. With the appropriate algorithm, it can determine human heart rate (HR), oxygen saturation (SpO2), respiration rate, and heart rate variability (a measure of stress). The OB1203 integrates light sources and drivers in a single optically optimized package.

A major LS application of the OB1203SD-C4R device is in smart phones or other mobile devices to enable brightness control of display panels. The OB1203 can also determine proximity of nearby objects in order to support the activation of touch screen displays or system functions. The sensor combines optical sensing features (CS, LS, and PS) and bio-sensing functionality (PPG) without needing a visible optical opening. The unique implementation of the OB1203 enables SpO2 measurements behind ink that is IR transmissive, but visibly dark, allowing implementation in aesthetic industrial designs.

Product Features  

Biosensor Features： 
-Industry’s smallest optical biosensor module 
-Fully integrated and trimmed module, including two LEDs, 250mA maximum drive current, and photodetectors
Color Sensor Features：  
-Four parallel channels (red, green, blue, clear) 
-Accurate Correlated Color Temperature (CCT) 
Proximity Sensor Features ：
-Programmable pulsed LED up to 250mA output current
-High resolution (12 to 16 bits)
Physical Characteristics： 
-Highly reliable and industry-proven OSIP package with integrated cover glass for hypoallergenic products