Renesas: OB1203 Applications

Renesas’ high integration sensor, the OB1203, is the industry’s smallest optical biosensor module, with a fully integrated biosensor for reflective photoplethysmography. With the appropriate algorithm, it can determine human heart rate, oxygen saturation (SpO2), respiration rate, and heart rate variability. The pulse oximeter transmits this data via an I2C interface to an MCU for system reporting.

A major application of the device is consumer and mobile devices, enabling biosensing features and display control in a single device. The OB1203 can determine proximity of nearby objects in order to support the deactivation of touch screen displays or the detection of a finger for pulse oximetry measurements, for example. The sensor combines optical sensing features (CS, LS, PS) and bio-sensing functionality (PPG) without the need for a transparent optical opening. The unique implementation of OB1203 enables SpO2 measurements behind IR transmissive ink, making the device virtually invisible, and allowing for aesthetic industrial designs.

Typical Applications:
• Mobile Devices: Wearables, Fitness and Accessories
• Industrial: Lighting, Proximity, Worker Safety, Driver Assist

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Does this sensor can collect good PPG signal from wrist?