High-Speed Digital Double Sampling with Analog CDS on Column Parallel ADC Architecture for Low-Noise Active Pixel Sensor. - Yoshikazu Nitta; Yoshinori Muramatsu; Kiyotaka Amano; Takayuki Toyama; Jun Yamamoto; Koji Mishina; Atsushi Suzuki; Tadayuki Taura; Akihiko Kato; Masaru Kikuchi; Yukihiro Yasui; Hideo Nomura; et al. (ISSCC, 2006)