IMAGE SENSOR HAVING REDUCED WELL BOUNCE

摘要

A CMOS image sensor or other type of image sensor comprises a pixel array and sampling and readout circuitry associated with the pixel array. In conjunction with readout of one or more pixels in a selected group of pixels of the pixel array, a pixel power line signal of the array transitions from an inactive state to an active state, and a reset signal of a non-selected group of pixels of the pixel array transitions from an active state to an inactive state within a predetermined time prior to the transition of the pixel power line signal from its inactive state to its active state. This arrangement advantageously reduces well bounce in the image sensor. The image sensor may be implemented in a digital camera or other type of digital imaging device.