A 2.0 GS/s Two-Stage Quad-Channel Digital Downconverter for a 380 GHz Spaceborne Atmospheric HO Monitoring Instrument. - Adrian Tang 002; Subash Khanal; Gabriel Virbila; Nathaniel J. Livesey; Frank Werner 006; Goutam Chattopadhyay; Mau-Chung Frank Chang (IEEE Trans. Circuits Syst. II Express Briefs, 2023)