FRAMOS: SONY's 3rd gen image sensors support high readout rates

SONY Semiconductor Solutions features its high-performance 3rd generation CMOS Global Shutter with the brand-new IMX421 and IMX422 image sensors. Both of these two high-speed sensors for Machine Vision and Factory Automation come with a pixel size of 4.5µm for high sensitivity and low noise. The IMX422 achieves a frame rate of more than 434 fps at 10bit pixel depth, providing a square pixel array of 1/1.7” and 2 Megapixel resolution. The IMX421 achieves a frame rate of up to 371 fps implementing a 2/3” format and 2.8 Megapixel resolution. These high readout rates are supported by a Full-HD readout-mode and the new SLVS-EC interface. New features like High/Low Conversation Gain (HCG/LCG), Dual Trigger, Dual ADC, and Self Triggering increase the maximum throughput for precise object recognition and quality assurance of moving objects.

Both sensors are equipped with four additional features, specific to SONY®’s 3rd generation: The High Conversion Gain (HCG) allows the acquisition of images with better quality under low light conditions. This result is achieved by increasing the conversion gain of the pixels while keeping the noise contribution of the analog circuit constant. Conversely, the Low Conversion Gain mode is used under bright illumination conditions, realized by lowering the conversion gain of the pixel. Dual triggering allows different exposure times and gains in different regions of interest (ROI), to obtain an individual and effective image acquisition pipeline with two external trigger signals. The Dual ADC can read each pixel with separate gains. A high dynamic range image can be obtained by combining the two images, "off-the-sensor". The Self Trigger feature detects a change in the predefined “sensing area” and acquires an image automatically when this change exceeds a set threshold.


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