10-1 高精細CMOSイメージセンサ用カラムA/D変換器のための小面積低消費電力カラム分散型ランプ信号生成回路(第10部門情報センシング1)

抄録

This paper proposes an area-efficient low-power column-distributed ramp signal generator without any power-hungry amplifiers. This consists of miniaturized column-wise ramp generators connected together by metal wire, reducing eventual signal mismatch. Simulation results show less than 1LSB gain error of the ramp signal is attained only in the area of 2.4mm^2.