Extra loop delay compensation for hybrid delta-sigma modulators. - Yusaku Hirai; Kenji Ohara; Toshimasa Matsuoka (ISCAS, 2014)

A Delta-Sigma ADC with Stochastic Quantization. - Yusaku Hirai; Shinya Yano; Toshimasa Matsuoka (IPSJ Trans. Syst. LSI Des. Methodol., 2015)

An offset distribution modification technique of stochastic flash ADC. - Tomohiro Asano; Yusaku Hirai; Sadahiro Tani; Shinya Yano; Ikkyun Jo; Toshimasa Matsuoka (IEICE Electron. Express, 2016)

An analog front-end employing 87 dB SNDR stochastic SAR-ADC for a biomedical sensor. - Takatsugu Kamata; Masayuki Ueda; Yusaku Hirai; Sadahiro Tani; Tomohiro Asano; Shodai Isami; Toshifumi Kurata; Keiji Tatsumi; Toshimasa Matsuoka (NEWCAS, 2017)

Behavior-Level Analysis of a Successive Stochastic Approximation Analog-to-Digital Conversion System for Multi-Channel Biomedical Data Acquisition. - Sadahiro Tani; Toshimasa Matsuoka; Yusaku Hirai; Toshifumi Kurata; Keiji Tatsumi; Tomohiro Asano; Masayuki Ueda; Takatsugu Kamata (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

A Biomedical Sensor System With Stochastic A/D Conversion and Error Correction by Machine Learning. - Yusaku Hirai; Toshimasa Matsuoka; Sadahiro Tani; Shodai Isami; Keiji Tatsumi; Masayuki Ueda; Takatsugu Kamata (IEEE Access, 2019)

A Multi-Channel Biomedical Sensor System with System-Level Chopping and Stochastic A/D Conversion. - Yusaku Hirai; Toshimasa Matsuoka; Takatsugu Kamata; Sadahiro Tani; Takao Onoye (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2024)