Manufacturers have plenty of camera sensors to choose from, but for high-end devices, Sony sensors stand as one of the best on the market. To make things even better, Sony has just unveiled a new smartphone camera sensor, the industry's first 3-layer stacked CMOS image sensor with DRAM.
Thanks to added DRAM layer to the conventional 2-layer stacked CMOS image sensor, it is able to process a still image of 19.3 MP in only 1/120 of a second. For comparison, that is approximately four times faster than Sony's previous model with the same pixel count. It also shoots super slow motion movies at up to 1,000 frames per second in Full HD (1,920 x 1,080 pixels) on smartphones.
The sensor supports still images up to 21.2 megapixels and 4K video at up to 60 frames per second, but there are no word on when we'll start to see smartphones with the image sensor
Sony 3-layer stacked configuration with DRAM Specifications
- Effective pixel count - 5520 (H) x 3840 (V) 21.2 megapixels
- Image size (Diagonal) - 7.73mm (Type 1/2.3)
- Unit cell size - 1.22μm (H) x 1.22μm (V)
- Frame rate Still images - 30fps 4:3 19.3 megapixels / 16:9 17.1 megapixels
- Movies - 4K (3840 x 2160) at 60fps, Full HD / 720p at 240fps
- Reading speed - 8.478 ms (4:3 19.3 megapixels) / 6.962 ms (16:9 17.1 megapixels)
- Power supply 2.5V / 1.8V / 1.1V
- Image format - Bayer RAW
- Output - MIPI (CSI2) D-PHY 2.2Gbps/lane / C-PHY 2.0Gsps/lane
- DRAM capacity - 1G bit
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