Low power image sensors for smart home and office

Low power image sensors for smart home and office

New Products |
By Nick Flaherty

onsemi has launched a family of low power image sensors for industrial and commercial cameras such as smart doorbells, security cameras, AR/VR/XR headsets, machine vision and video conferencing.

The rolling shutter Hyperlux LP low power image sensor family uses a1.4 µm pixel with a stacked architecture design that minimizes its footprint and at its smallest approaches the size of a grain of rice, making it ideal for devices where size is critical. 

The image sensors also include processing for low power operation that can extend the battery life by 40%. The sensor design reduces thermal noise which negatively impacts image quality and eliminates the need for heat sinks, reducing the overall cost of the vision system.

The 20MP AR2020 1/1.8−inch Back-Side Illuminated (BSI) Stacked CMOS digital image sensor has a 5120 x 3840 active−pixel array and captures images in either linear or enhanced Dynamic Range (eDR) modes, with a rolling−shutter readout. It includes data capture circuits at the edge that can be programmed through several options to deliver optimal bandwidth at very low power.

Wake on Motion enables the sensors to operate in a low-power mode that draws a fraction of the power needed in the full-performance mode. Once the sensor detects movement, it moves to a higher performance state in less time than it takes to snap a photo.

Smart ROI delivers more than one region of interest (ROI) to give a context view of the scene at reduced bandwidth and a separate ROI in original detail.

The 8.3MP AR0830 reduces the sensor array to 3840 x 2160 active−pixels in a 1/2.9−inch BSI sensor, while the 5MPixel AR0544 is a 2592 x 1944 array in a 1/4.2−inch BSI sensor. 

“By leveraging our analog design and pixel architecture, our sensors elevate the two most important elements people consider when buying a device, picture quality and battery life. Our image sensor family delivers performance that matters with a significantly increased battery life and exquisite, highly detailed images,” said Ross Jatou, senior vice president and general manager, Intelligent Sensing Group at onsemi.

In addition to smart home devices, one of the other applications the Hyperlux LP family can improve is videoconferencing.

“Our video collaboration solutions require high-quality image sensors that bring together multiple factors for the best user experience. The superior optical performance, innovative features and extremely low power consumption of the Hyperlux LP image sensors enable us to deliver a completely immersive virtual meeting experience in highly intelligent and optimized videoconferencing systems,” said Ashish Thanawala, Sr. Director of Systems Engineering, Owl Labs.

The Hyperlux LP low power image sensor family will be available in the fourth quarter of 2023.


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