Image sensors and image processing devices that support rolling and global shutter modes of operation

An image sensor, comprising:

• a first sub-pixel including at least two first photodiodes;
• a second sub-pixel including at least two second photodiodes;
• a first floating diffusion node configured to store charge integrated by the first photodiodes;
• a second floating diffusion node configured to store charge integrated by the second photodiodes;
• a first source follower transistor configured to amplify a voltage stored in the first floating diffusion node;
• a second source follower transistor configured to amplify a voltage stored in the second floating diffusion node;
• a first rolling select transistor connected in series with the first source follower transistor;
• a second rolling select transistor connected in series with the second source follower transistor;
• and
• a global select switch connected between an output terminal of the first source follower transistor and an output terminal of the second source follower transistor.

An image processing device, comprising:

• an image sensor including a pixel array in which a plurality of pixels are arranged in a matrix, and configured to generate image data based on optical signals received by the pixel array;
• and
• an application processor configured to receive and process the image data from the image sensor and provide a mode setting signal to the image sensor;
• wherein each of the plurality of pixels comprises:
• a first sub-pixel sharing a first floating diffusion node;
• a second sub-pixel sharing a second floating diffusion node;
• a first rolling shutter operation circuit configured to read out photocharge integrated in the first floating diffusion node during a rolling shutter mode of operation;
• a second rolling shutter operation circuit configured to read out photocharge integrated in the second floating diffusion node during the rolling shutter mode of operation;
• a global select switch circuit electrically coupled between the first rolling shutter operation circuit and the second rolling shutter operation circuit, and including at least one transistor;
• and
• a global shutter operation circuit electrically coupled to the global select switch circuit, and configured to read out photocharge integrated in the first floating diffusion node and the second floating diffusion node during a global shutter mode of operation.