Image sensor pixels with junction gate photodiodes

A pixel array having pixels, comprising:

• a junction gate field-effect transistor source-follower having a gate that forms a floating diffusion node;
• a reset diode that resets the floating diffusion node;
• and
• a plurality of junction gate photodiodes coupled to the floating diffusion node.

A pixel array for an image sensor, comprising:

• a plurality of pixels, wherein each pixel in the plurality of pixels comprises a junction gate photodiode;
• a junction gate field-effect transistor source-follower for the plurality of pixels, wherein the junction gate field-effect transistor source-follower has a gate that forms a floating diffusion region for the plurality of pixels and wherein the junction gate field-effect transistor source-follower is coupled to an output for the plurality of pixels;
• and
• a reset diode that is configured to reset the floating diffusion region.