onsemi (NASDAQ: ON), a leader in smart power and intelligent perception technology, announced the launch of an innovative image sensor, the AR0822. The device’s embedded high dynamic range (eHDRTM) capabilities and optimized near-infrared (NIR) response are critical for applications with harsh lighting conditions, such as security surveillance, body cameras, doorbell cameras, and robotics. The sensor’s low-power architecture and motion wake function are designed to significantly reduce system power consumption.

The AR0822 is an 8 megapixel (MP) stacked 1/1.8 inch (diagonal 8.81 mm) backlit (BSI) CMOS digital image sensor based on 2.0µm pixels. It has an effective pixel array of 3840 (H) x 2160 (V) and is capable of shooting 4K video at 60 frames per second (fps), capturing images in linear or eHDRTM mode (120dB) and reading out with a roll-up shutter.

Ross Jatou, senior vice president and general manager of Intelligent Perception at ON, said: “The AR0822 delivers industry-leading performance in low-light conditions while enabling customers to achieve the required 120 dB eHDRTM at lower system

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power consumption and cost. This combination gives our customers strong support to meet the market demand for more advanced imaging and energy saving solutions and longer battery life.”

A major challenge for image sensors today is the need to operate in uncontrolled light conditions. Specifically, scenes with high dynamic range (HDR) – images with particularly bright and dark areas. While many HDR technologies use multiple exposure outputs, sending up to three images of different exposures to an image signal processor (ISP) for a combination, this approach requires up to three times the system bandwidth and more expensive components, especially at higher resolutions. The AR0822 incorporates HDR capabilities to reduce system bandwidth and processor power consumption, while also compensating for moving and flickering light sources through intelligent linearization and exposure combinations for superior image quality.

To meet customer expectations for low-power operation and longer battery life for Internet of Things (IoT) applications, the AR0822 optimizes system power consumption with dedicated features such as motion wake-up. Most cameras operate in a lower power mode while on standby and return to normal operation when motion is detected to save power. These systems typically require sensors and processors working simultaneously to detect motion. The AR0822 can intelligently detect motion changes in the scene using its motion Wake function, which puts the processor into low-power standby mode until the sensor detects motion and triggers the processor to return to operating mode.

The AR0822 also features enhanced near-infrared sensitivity and sophisticated camera features such as binning/windowing. The device is designed for harsh environments and operates at temperatures ranging from -30 °C to 85 °C (junction temperature).