High-speed CMOS Image Sensor for Machine Vision Applications

Posted Jun 12, 2018 by ams AG

ams has released a high-speed 48 megapixel global shutter CMOS image sensor for demanding machine vision applications, the CMV50000. It features a 35mm-format 7920 x 6004 array of 4.6µm-sized pixels based on a patented eight-transistor pixel architecture, is a breakthrough in CMOS image sensor performance. It operates at a fast 30 frames/s with 12-bit pixel depth at full resolution or at binned 4K and 8K modes, and even faster – up to 60 frames/s – with pixel sub-sampling at 4K resolution.

This means the new sensor can provide the detailed views of a large surface area that are required in factory automation applications such as automated optical inspection (AOI) equipment and systems for the inspection of displays of mobile phones, tablets, laptops and TVs. The combination of high frame rate and high resolution enables manufacturers to increase their already high throughput rates at consumer product assembly plants.

The low-noise ams pixel architecture offers excellent electronic shutter efficiency, and the global shutter operation produces distortion-free images of fast-moving objects. The sensor offers 64dB optical dynamic range at full resolution and up to 68dB in binned 4K mode. The image sensor benefits from the implementation of sophisticated new on-chip noise-reduction circuitry such as black-level clamping, enabling it to capture high-quality images in low-light conditions.

The outstanding performance of the CMV50000 lets manufacturers replace the charge-coupled device (CCD) image sensors which have traditionally been used in applications requiring ultra-high resolution. Now they can use a CMOS image sensor which is easier to implement in camera systems, uses less power and operates at higher frame rates. The superior imaging performance of the new sensor was recognized earlier in 2018 when it was named the Biggest Breakthrough Development at the Image Sensors Europe Awards 2018.

Both the monochrome and color versions of the CMV50000 are available in production volumes now with a per unit pricing of €3,450.