Imaging apparatus and electronic device

A light-detecting device comprising:

• a first pixel circuit including a photodiode, a first floating diffusion, a first switch transistor, and a reset transistor;
• a second pixel circuit including a photodiode, a second floating diffusion, a second switch transistor, and a third switch transistor,
• a wiring coupled to the first floating diffusion and the second floating diffusion;
• and
• a first capacitor selectively coupled to the first floating diffusion and the second floating diffusion, wherein
• the first floating diffusion is coupled to the second floating diffusion via the first switch transistor, the second switch transistor, and the wiring,
• the first pixel circuit includes a first amplification transistor and a first selection transistor,
• the second pixel circuit includes a second amplification transistor and a second selection transistor, and
• the reset transistor, the first switch transistor, the first amplification transistor, and the first selection transistor are disposed along a first direction in a plan view.