Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/144421
Title: A 6bit 1.2GS/s symmetric successive approximation energy-efficient time-to-digital converter in 40nm CMOS
Authors: Chen, Qian
Liang, Yuan
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

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