The onsemi AR0822 is an 8Mpixel stacked 1/1.8-inch (8.81mm diagonal) back-side illuminated (BSI) CMOS digital image sensor based on a 2.0µm pixel. Providing a rolling-shutter readout, the AR0822 features an active pixel array of 3,840px x 2,160px and produces 4K video at a rate of 60 frames/s. The sensor offers the high dynamic range (HDR) and near infrared (NIR) response required for operation in harsh or uncontrolled lighting conditions.
By taking an alternative approach enabled by its on-chip embedded functionality, the AR0822 reduces system bandwidth and processor power to achieve HDR, compared to traditional methods that require an external image signal processor to combine images. The sensor supports linear, line-interleaved HDR (LI-HDR), and embedded HDR (eHDR) modes. In 3-exposure eHDR mode at 30 frames/s, the typical power consumption is 540mW.
To further reduce system power consumption in battery-powered applications, the AR0822 includes a wake-on-motion function. This feature allows the host processor to enter a low-power standby mode until the sensor detects motion and triggers the processor to resume active mode.
Part Number: AR0822NPSC10SMTAH3-GEVB
The AR0822NPSC10SMEAH3-GEVB sensor board for the 8 Mpixel AR0822 from onsemi provides a convenient platform for evaluating the image sensor’s embedded High Dynamic Range feature and its low power consumption.
The board can be interfaced to the onsemi Demo 3 evaluation board, or to the AP1302 evaluation board stacked on the Demo 3 board. The combined kit uses the DevSuite software from onsemi to configure the system. The software provides a comprehensive set-up interface, and offers a flexible way to evaluate the sensor’s features and capabilities.
The sensor board comes with a lens suitable for evaluation. Designers can use their own lens as long as it is compatible with the mechanical and optical requirements of the sensor.
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