A 4th order single-loop delta-sigma ADC with 8-bit two-step flash quantization. - Yongjie Cheng; Craig S. Petrie; Brent Nordick (ISCAS (1), 2004)

Dynamic element matching techniques for delta-sigma ADCs with large internal quantizers. - Brent Nordick; Craig S. Petrie; Yongjie Cheng (ISCAS (1), 2004)

Multibit Delta-Sigma Modulator With Two-Step Quantization and Segmented DAC. - Yongjie Cheng; Craig Petrie; Brent Nordick; David J. Comer; Donald T. Comer (IEEE Trans. Circuits Syst. II Express Briefs, 2006)