A 5.7-mW 9-GHz 8-bit Twin-PI with a Digitally-Controlled Weighted Summer in 28-nm CMOS. - Changjun Zhao; Haoren Zhou; Hangyu He; Tengyang Liu; Xiaojin Li; Yang Shen; Yuhang Zhang; Yanling Shi; Bingyi Ye; Yabin Sun (ISCAS, 2026)