Image sensors including shielding structures

An image sensor comprising:

• an active pixel sensor array including unit pixels arranged in a matrix and a plurality of first and second output lines connected to the unit pixels, the first and second output lines being arranged in alternating order along a first direction;
• and
• an analog-to-digital converter that converts pixel signals to digital signals, the pixel signals being output from the first and second output lines of the active pixel sensor array,
• wherein the analog-to-digital converter comprises:
• a plurality of shielding structures spaced apart from each other along the first direction;
• and
• a plurality of first analog circuits respectively connected to the first output lines;
• and
• a plurality of second analog circuits respectively connected to the second output lines,
• wherein the plurality of first analog circuits are disposed between first adjacent ones of the shielding structures, and
• the plurality of second analog circuits are disposed between second adjacent ones of the shielding structures.

An image sensor, comprising:

• first pixels configured to detect light having a first color;
• second pixels configured to detect light having a second color;
• first correlated double sampler (CDS) circuit blocks coupled to the first pixels and second CDS circuit blocks coupled to the second pixels, wherein each of the first CDS circuit blocks includes a plurality of first analog circuits respectively connected to ones of the first pixels and each of the second CDS circuit blocks includes a plurality of second analog circuits respectively connected to ones of the second pixels;
• and
• a plurality of shielding structures respectively between adjacent ones of the first and second analog circuits.