A novel delta-sigma modulator using resonant-tunneling quantizers. - Masaru Chibashi; Keisuke Eguchi; Takao Waho (ISCAS (1), 2004)

A Design of 10-GHz Delta-Sigma Modulator using a 4-Level Differential Resonant-Tunneling Quantizer. - Keisuke Eguchi; Masaru Chibashi; Takao Waho (ISMVL, 2005)

A fully-differential resonant-tunneling circuit. - Masaru Chibashi; Keisuke Eguchi; Shinpei Nakagawa; Takao Waho (IEICE Electron. Express, 2005)

A Design of Continuous-Time Delta-Sigma Modulators Using a Fully-Differential Resonant-Tunneling Comparator. - Keisuke Eguchi; Masaru Chibashi; Shinpei Nakagawa; Mitsuhiro Tanihata; Takao Waho (IEICE Trans. Electron., 2006)