Electronic Products & Technology

Colour sensors with I²C interface come in low profile packages

February 27, 2020  Stephen Law

VISHAY INTERTECHNOLOGY VEML3328 (top-looking) and VEML3328SL (side-looking) RGBC-IR optoelectronic sensors provide linearity and higher sensitivity compared to previous generation devices, as well as new features including an infrared (IR) channel. Devices sense red, green, blue, clear and IR light by incorporating photodiodes, amplifiers, and analog / digital circuits into a single CMOS chip. With the ability to calculate color temperature and sense ambient light, devices provide a compact solution for adjusting backlighting in consumer electronics and notebook computers. Devices can also differentiate indoor from outdoor lighting environments to ensure that displays maintain consistent true color and ideal brightness levels based on the current environment lighting conditions. Device functions are easily operated via the simple and power-efficient I²C (SMBus compatible) interface protocol. Products feature a low operating voltage range of 2.6V to 3.6V to prolong battery life in handheld and portable systems. 

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