Datasheet IDT OB1203


Digital RGB / Ambient Light, Proximity and Photoplethysmography Sensor


Preliminary Short-Form Datasheet OB1203
PDF, 774 Kb, Language: en, Revision: 20190110, File uploaded: Oct 29, 2019, Pages: 2
Digital RGB + IR / Ambient Light, Proximity and Pulse Oximeter and Heart-Rate Sensor


Detailed Description

The OB1203 Sensor module integrates a multi-channel light sensor (LS), a proximity sensor (PS) and a photoplethysmography sensor (PPG). 

The Light Sensor can be configured as Ambient Light Sensor (LS) to measure ambient light close to human eye experience or as RGB Color Sensor (CS). 

The module has a fully integrated biosensor for reflective photoplethysmography (PPG).

With the appropriate algorithm it can determine human heart rate, oxygen saturation (SpO2), respiration rate and heart rate variability (a measure of stress). OB1203 integrates light sources and drivers in a single optically optimized package.

A major application of the device is in smart phones or other mobile devices to enable brightness control of display panels. OB1203 can also determine proximity of nearby objects in order to support the deactivation of touch screen displays during phone calls. The sensor combines front facing optical sensing features (CS, LS, PS) and bio-sensing functionality (PPG) without the need for an additional optical opening. The unique implementation of OB1203 enables SpO2 measurements behind IR transmissive, but visibly dark ink allowing for aesthetic industrial designs.


Lifecycle StatusPreview (Device has been announced but is not in production. Samples may or may not be available)Preview (Device has been announced but is not in production. Samples may or may not be available)


Parameters / ModelsOB1203SD-C4ROB1203SD-C4V
Temperature GradeII

Model Line

Series: OB1203 (2)

Manufacturer's Classification