A 10.8mA Single Chip Transceiver for 430MHz Narrowband Systems in 0.15µm CMOS. - George Hayashi; Akihiro Sawada; Takashi Morie; Kazuhiro Matsuyama; Ryangsu Kim; Seichiro Yoshida; Akinori Matsumoto; Katsumasa Hijikata; Kazuo Matsukawa; Yoshihiro Tamura; Jun Ogawa; Toshio Takita (ISSCC, 2006)

Design methods for pipeline & delta-sigma A-to-D converters with convex optimization. - Kazuo Matsukawa; Takashi Morie; Yusuke Tokunaga; Shiro Sakiyama; Yosuke Mitani; Masao Takayama; Takuji Miki; Akinori Matsumoto; Koji Obata; Shiro Dosho (ASP-DAC, 2009)

A 69.8 dB SNDR 3rd-order Continuous Time Delta-Sigma Modulator with an Ultimate Low Power Tuning System for a Worldwide Digital TV-Receiver. - Kazuo Matsukawa; Yosuke Mitani; Masao Takayama; Koji Obata; Yusuke Tokunaga; Shiro Sakiyama; Shiro Dosho (CICC, 2010)

A Fifth-Order Continuous-Time Delta-Sigma Modulator With Single-Opamp Resonator. - Kazuo Matsukawa; Yosuke Mitani; Masao Takayama; Koji Obata; Shiro Dosho; Akira Matsuzawa (IEEE J. Solid State Circuits, 2010)

A 10 MHz BW 50 fJ/conv. continuous time ΔΣ modulator with high-order single opamp integrator using optimization-based design method. - Kazuo Matsukawa; Koji Obata; Yosuke Mitani; Shiro Dosho (VLSIC, 2012)

A Low Distortion 3rd-Order Continuous-Time Delta-Sigma Modulator for a Worldwide Digital TV-Receiver. - Koji Obata; Kazuo Matsukawa; Yosuke Mitani; Masao Takayama; Yusuke Tokunaga; Shiro Sakiyama; Shiro Dosho (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012)

A 71dB-SNDR 50MS/s 4.2mW CMOS SAR ADC by SNR enhancement techniques utilizing noise. - Takashi Morie; Takuji Miki; Kazuo Matsukawa; Yoji Bando; Takeshi Okumoto; Koji Obata; Shiro Sakiyama; Shiro Dosho (ISSCC, 2013)

A 4.2 mW 50 MS/s 13 bit CMOS SAR ADC With SNR and SFDR Enhancement Techniques. - Takuji Miki; Takashi Morie; Kazuo Matsukawa; Yoji Bando; Takeshi Okumoto; Koji Obata; Shiro Sakiyama; Shiro Dosho (IEEE J. Solid State Circuits, 2015)

A 97.99 dB SNDR, 2 kHz BW, 37.1 µW noise-shaping SAR ADC with dynamic element matching and modulation dither effect. - Koji Obata; Kazuo Matsukawa; Takuji Miki; Yusuke Tsukamoto; Koji Sushihara (VLSI Circuits, 2016)