A 10.7-MHz bandpass sigma-delta modulator using double-delay single-opamp SC resonator with double-sampling. - Chon-In Lao; Ho-leng Leong; Kuoi-Fok Au; Kuok-Hang Mok; Seng-Pan U.; Rui Paulo Martins (ISCAS (1), 2003)

A novel semi-MASH sub-stage for high-order cascade sigma-delta modulators. - Chon-In Lao; Seng-Pan U.; Rui Paulo Martins (ISCAS (4), 2005)

A novel effective bandpass semi-MASH sigma-delta modulator with double-sampling mismatch-free resonator. - Chon-In Lao; Seng-Pan U.; Rui Paulo Martins (ISCAS, 2006)