Image sensor having pixel architecture for capturing depth image and color image

An image sensor, comprising:

• a pixel array configured in an m×n pixel architecture;
• a first column readout circuit and a second column readout circuit each connected to all columns included in the pixel array;
• a first switch circuit disposed between the pixel array and the first column readout circuit and configured to switch a connection between a column of the pixel array and the first column readout circuit, based on a control of a controller;
• a second switch circuit disposed between the pixel array and the second column readout circuit and configured to switch a connection between a column of the pixel array and the second column readout circuit, based on the control of the controller;
• and
• the controller configured to control the first switch circuit and the second switch circuit for green pixels, from among pixels included in the m×n pixel architecture, to be read out by one of the first column readout circuit and the second column readout circuit,
• wherein the pixel array includes,
• a first pixel including a first floating diffusion (FD) node,
• a second pixel including a second FD node, and
• a control switch,
• the image sensor configured to operate in a color mode and a depth mode,
• the color mode a mode in which the image sensor captures a color image,
• the depth mode a mode in which the image sensor captures a depth image,
• the control switch configured to electrically connect the first FD node and the second FD node when the image sensor is operating in the depth mode,
• the control switch configured to release the electrical connection between the first FD node and the second FD node when the image sensor is operating in the color mode, and
• the first and second pixels configured to sense visible light and an infrared ray.