Solid-state image sensing element and image sensing system including comparison units with switchable frequency band characteristics

摘要

In a solid-state image sensing element which includes a pixel array portion in which a plurality of pixels each including a photoelectric converter are arranged two-dimensionally, and readout circuits which read out analog pixel signals from the pixel array portion by column, and in which each of the readout circuits includes an A/D conversion circuit which converts the analog pixel signal from the pixel array portion into a digital pixel signal, and the A/D conversion circuit performs A/D conversion by comparing, by a comparison unit, a signal level of the analog pixel signal from the pixel array portion with a temporally changing reference level, a frequency band characteristic of the comparison unit is switched in accordance with the signal level of the analog pixel signal from the pixel array portion.