Array of pixels with good dynamic range

Abstract

An array comprises a plurality of pixels logically arranged in rows and columns. The pixels comprise a photoreceptor () for converting impinging radiation into electronic charge, a transfer element () for transferring the electronic charge towards a sense node, a reset transistor () for resetting the sense node (), means for converting the electronic charge onto the sense node () into a voltage, and for outputting the voltage as a pixel signal, and means adapted for biasing the sense nodes at a low voltage lower than a reset voltage which is meant to initialize the photoreceptor, during integration of impinging radiation on the photoreceptors. The means for converting and outputting comprise a source follower () for converting the electronic charge, and a select transistor () for outputting the voltage as a pixel signal, and the reset transistor of at least one pixel is coupled with one main electrode to the gate of the reset transistor of another pixel.