CMOS image sensors suit AI, ultra-low-light applications

CMOS image sensors suit AI, ultra-low-light applications

New Products |
By Rich Pell

The sensors – the SC2320, SC4335, SC5335 and SC8220 – have resolutions of two to eight mega pixels and claim to offer a two-fold increase in sensitivity and a five-fold reduction of dark current compared to first generation of image sensors using front-side illuminated (FSI) technology. The release of these sensors, says the company, heralds the next generation of its SmartPixel technology, capable of even broader applications, such as under ultra-low-light conditions and wider area surveillance.

“In the era of interconnectivity, IoT, Security & Surveillance, Smart City, Smart Home and Artificial Intelligence applications all rely on ‘smart sensor chips’ to deliver high definition visual data,” says SmartSens COO Mr. William Ma. “SmartSens is dedicated to developing better performing, more compelling technologies and products. SmartSens utilized its industry-leading process development, pixel technology and circuit structure design capabilities to launch DSI sensors that better address our clients’ industry-specific needs.”

When compared to other back-side illuminated (BSI) sensors, for example, the SC4335 is claimed to have performed with 42% higher sensitivity and 16% better dynamic range. Additionally, says the company, with an improved signal-to-noise ratio, the DSI sensors are ideal for artificial intelligence applications and are built to meet the specific needs of target applications.

The SC8220 (8M pixels) is primarily designed for smart city, smart home, and similar applications that require 4K high resolution and high quality videos. It supports both 4K resolutions and an 1/1.8″ optical format, and is designed to be highly sensitive while keeping power consumption low.

The SC2320 (2M pixels), SC4335 (4M pixels), and SC5335 (5M pixels) are primarily designed for security and surveillance applications, relying on their heightened sensitivity and improved signal-to-noise ratio to produce high clarity images even in dim lighting conditions. The sensors have specifically enhanced quantum efficiency in the near-infrared (NIR) region (i.e., 850 nm to 940 nm wavelength) and are designed to fit the same industry standard 1/3″ optical format.

The four DSI sensors are currently available for sampling and projected for mass production by the end of 2019.


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