A 65 nm CMOS fully-differential track-and-hold amplifier (THA) in master-slave configuration is presented. For highspeed operation, Cherry-Hooper amplifier with input inductive-peaking and switched-source follower (SSF) circuit are used for the front-end preamplifier and master/slave track-and-hold circuits, respectively. On-wafer testing in single-ended input/output configuration shows that the fabricated THA exhibits 20 GHz switched-mode bandwidth and 11.9 dB conversion gain at 8 GS/s clock, with THD < −36 dB and SFDR >36 dB within the 3-dB bandwidth, while consuming 361 mW of dc power at 2.6 V supply. This work represents the highest input bandwidth for master-slave THA in CMOS, to the best of authors' knowledge. The chip area is 0.681 mm 2 including pads (active chip area: 0.2 mm 2 ).
K E Y W O R D Shigh speed sampling, master-slave THAs, sampling circuits, switched source follower, track and hold amplifier
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.