A 1.5 V, 4.1 mW dual-channel audio delta-sigma D/A converter. - Ichiro Fujimori; Tetsuro Sugimoto (IEEE J. Solid State Circuits, 1998)

A multibit delta-sigma audio DAC with 120-dB dynamic range. - Ichiro Fujimori; Akihiko Nogi; Tetsuro Sugimoto (IEEE J. Solid State Circuits, 2000)

A 0.8 V, 2.6 mW, 88 dB Dual-Channel Audio Delta-Sigma D/A Converter With Headphone Driver. - Kyehyung Lee; Qingdong Meng; Tetsuro Sugimoto; Koichi Hamashita; Kaoru Takasuka; Seiji Takeuchi; Un-Ku Moon; Gabor C. Temes (IEEE J. Solid State Circuits, 2009)