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|Title:||A 6bit 1.2GS/s symmetric successive approximation energy-efficient time-to-digital converter in 40nm CMOS||Authors:||Chen, Qian
Boon, Chirn Chye
|Keywords:||Engineering::Electrical and electronic engineering||Issue Date:||2020||Source:||Chen, Q., Liang, Y., & Boon, C. C. (2020). A 6bit 1.2GS/s symmetric successive approximation energy-efficient time-to-digital converter in 40nm CMOS. Proceedings of the 2020 IEEE International Symposium on Circuits and Systems (ISCAS). doi:10.1109/ISCAS45731.2020.9180949||Project:||MOE2019-T2- 1-114||Abstract:||This work presents a 6bit 1.2GS/s symmetric successive approximation (SSA) energy-efficient time-to-digital converter (TDC). The delay offset of the successive approximation (SA) TDC has been alleviated by employing the balanced architecture and optimizing the phase detector (PD). Size-optimized inverter chain is deployed as the delay unit with good linearity to increase the conversion rate and reduce the power consumption. In addition, dynamic logic is implemented to further improve the speed and energy efficiency. As a proof-of-concept design, the TDC is verified by post-layout simulation (Transient noise + Monte Carlo (MC)) in 40nm low power CMOS technology, achieving 0.98LSB /1.03LSB worst case differential nonlinearity (DNL)/integral nonlinearity (INL) and 0.014pJ/conversion-step figure-of-merit (FOM). The simulated single-shot precision (SSP) of the proposed TDC is 0.71 LSB.||URI:||https://hdl.handle.net/10356/144421||ISSN:||2158-1525||DOI:||10.1109/ISCAS45731.2020.9180949||Rights:||© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work is available at: https://doi.org/10.1109/ISCAS45731.2020.9180949||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Conference Papers|
Updated on Jul 25, 2021
Updated on Jul 25, 2021
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