A 108.9dB-DR, 2-2 MASH ADC Featuring a Nested Gainboosting FIA with Gm Enhancement in Settling Phase Through Stepwise Charge Sharing. - Yuming Li; Lichenxi Zhang; Youxiang Chen; Kelei Zhang; Rui Pan; Junyao Ji; Jie Zhang; Xiaofei Wang; Hong Zhang (CICC, 2026)