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An Intrinsically PVT Robust 10-bit 2.6-GS/s Dynamic Pipelined ADC with Dual-Path Time-Assisted Residue Generation Scheme
Hao, Junyan1,2; Zhang, Minglei3; Liu, Zijian3; Zhang, Yanbo2; Liu, Shubin2; Zhu, Zhangming2; Zhu, Yan3; Martins, Rui P.3,4; Chan, Chi Hang3
2024-12-04
Source PublicationIEEE Journal of Solid-State Circuits
ISSN0018-9200
Abstract

This article presents a single-channel 10-bit pipelined analog-to-digital converter (ADC) with a dual-path time-assisted residue generation (TARG) technique running at 2.6 GS/s. A voltage-to-time converter (VTC) driving a current-integrating capacitor array through a time pulse facilitates the inter-stage residue amplification, which decouples the constraint between linearity and speed of the residue generation. The time residue path shortens the residue generation period with a lower linearity requirement and quantizes 4 bits simultaneously, speeding up the sub-stage ADC conversion; the voltage residue path achieves a dedicated inter-stage gain with high linearity and relaxed timing, suppressing noise of its subsequent stages. Furthermore, the inherent complementation characteristic of the voltage-time-voltage (V-T-V) conversion in the TARG scheme makes the prototype ADC intrinsically robust to process, voltage, and temperature (PVT) variations. Fabricated in a 28-nm CMOS process, the 2.6-GS/s pipelined ADC achieves a 51.4-dB signal-to-noise and distortion ratio (SNDR) and a 71.0-dB spurious-free dynamic range (SFDR) with a Nyquist input at a 0.9-V power supply, exhibiting a Walden figure-of-merit of 17.6 fJ/conversion-step. The SNDR varies by 1.25 and 1.55 dB across a supply variation of ± 5% and a temperature range of-40°C to 85°C, respectively.

KeywordAnalog-to-digital Converter (Adc) Parallel Quantization And Amplification Pipelined Adc Time-domain (Td) Adc Voltage-to-time Converter (Vtc)
DOI10.1109/JSSC.2024.3507915
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:001371981700001
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141
Scopus ID2-s2.0-85211457060
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Citation statistics
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorZhang, Minglei
Affiliation1.University of Macau, State Key Laboratory of Analog and Mixed-Signal VLSI, Department of Electrical and Computer Engineering, Faculty of Science and Technology, Institute of Microelectronics, 999078, Macao
2.Xidian University, Key Laboratory of Analog Integrated Circuits and Systems, Ministry of Education, School of Integrated Circuits, Xi'an, 710071, China
3.University of Macau, State Key Laboratory of Analog and Mixed Signal VLSI, Institute of Microelectronics, Department of Electrical and Computer Engineering, Faculty of Science and Technology, 999078, Macao
4.Universidade de Lisboa, Instituto Superior Técnico, Lisbon, 1049-001, Portugal
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Hao, Junyan,Zhang, Minglei,Liu, Zijian,et al. An Intrinsically PVT Robust 10-bit 2.6-GS/s Dynamic Pipelined ADC with Dual-Path Time-Assisted Residue Generation Scheme[J]. IEEE Journal of Solid-State Circuits, 2024.
APA Hao, Junyan., Zhang, Minglei., Liu, Zijian., Zhang, Yanbo., Liu, Shubin., Zhu, Zhangming., Zhu, Yan., Martins, Rui P.., & Chan, Chi Hang (2024). An Intrinsically PVT Robust 10-bit 2.6-GS/s Dynamic Pipelined ADC with Dual-Path Time-Assisted Residue Generation Scheme. IEEE Journal of Solid-State Circuits.
MLA Hao, Junyan,et al."An Intrinsically PVT Robust 10-bit 2.6-GS/s Dynamic Pipelined ADC with Dual-Path Time-Assisted Residue Generation Scheme".IEEE Journal of Solid-State Circuits (2024).
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