A 100kHz-BW 99dB-DR Continuous-Time Tracking-Zoom Incremental ADC with Residue-Gain Switching and Digital NC-FF

Ye Dam Kim, Jae Hyun Chung, Kent Edrian Lozada, Chang Un Park, Kun Woo Park, Kwan Hoon Song, Young Hun Moon, Min Jae Seo, Seung Tak Ryu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper proposes a continuous-time (CT) tracking-zoom (TZ) incremental ADC (I - ADC) that reuses a quantizer for both the coarse SAR and fine DSM stages. The TZ I-ADC addresses the input bandwidth (BW) limitation issue with simple DAC code update. A residue-gain (RG) switching technique is proposed to mitigate the inconsistent signal transfer function (STF) in the fine CT incremental DSM (I-DSM). A digital noise-coupling-feedforward (DNC-FF) architecture is proposed to reduce the out-of-band gain (OBG). Fabricated in a 180nm CMOS process, the prototype consumes 2.52mW under a 1.8V supply, achieving 99-dB DR. 93.8-dB SNDR. and 102.5-dB SFDR.

Original languageEnglish
Title of host publication2024 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350361469
DOIs
StatePublished - 2024
Event2024 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2024 - Honolulu, United States
Duration: 16 Jun 202420 Jun 2024

Publication series

NameDigest of Technical Papers - Symposium on VLSI Technology
ISSN (Print)0743-1562

Conference

Conference2024 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2024
Country/TerritoryUnited States
CityHonolulu
Period16/06/2420/06/24

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