OB1203SD-C4V

OB1203SD-C4V is a heart rate, blood oxygen concentration, pulse oximetry, proximity, light and colour sensor. It integrates an optical biosensor with a proximity sensor and ambient light sensing features that are desirable for handheld electronic devices. The OB1203 photoplethysmography (PPG) biosensor integrates light sources and drivers, analogue 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 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.

• Highly reliable and industry-proven OSIP package with integrated non-allergenic cover glass
• Wide supply voltage range from 1.7V to 3.6V (VDD = 2.8V, TAMB = 25°C)
• LS/CS (clear and colour sensor) active mode current is 110µA typ (TAMB = 25ºC)
• PS: 90µA + LED current (typical ~300µA average)
• Low standby current is 2µA typical
• I2C interface supporting standard mode (100KHz) or fast mode (400KHz) communication
• Programmable level-based interrupt functions with upper and lower thresholds
• Very stable spectral response over angle of light incidence
• Measurement resolution is 15bit typical (VDD = 2.8V, TAMB = 25°C)
• 14-OSIP package, ambient temperature range from -40°C to +85°C