Image sensor and method for operating an image sensor

The method for operating an image sensor, comprising

• resetting a sense node of a first pixel and resetting of a sense node of a second pixel by switching a connection switch of the first pixel, a connection switch of the second pixel and a single reset transistor in a conducting state and providing a reset voltage to a common reset node by the single reset transistor,
• wherein each of the first and the second pixel comprises a pinned photodiode and a transfer gate coupled to the pinned photodiode and to the sense node,
• wherein the connection switch of the first pixel couples the common reset node to the sense node of the first pixel, and the connection switch of the second pixel couples the common reset node to the sense node of the second pixel, and
• wherein the single reset transistor is coupled to the common reset node and the first and the second pixel share the single reset transistor.

An image sensor comprising an array of pixels having at least a subset of pixels,

• wherein the subset of pixels comprises a first and a second pixel such that each of the first and the second pixel comprises:
• a pinned photodiode,
• a sense node,
• a transfer gate coupled to the pinned photodiode and coupled to the sense node,
• a connection switch coupled to the sense node, and
• an anti-blooming gate coupled to the pinned photodiode, and
• wherein the subset of pixels further comprises
• a common reset node such that the connection switch of the first pixel is coupled to the common reset node and the connection switch of the second pixel is coupled to the common reset node, and
• a single reset transistor which is configured to provide a reset voltage to the common reset node, wherein the first and the second pixel share the single reset transistor.