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A 79.5dB-SNDR Pipelined-SAR ADC with a Linearity-Shifting 32× Dynamic Amplifier and Mounted-Over-Die Bypass Capacitors
Zhang, Minglei1; Cao, Yuefeng1; Zhu, Yan1; Chan, Chi-Hang1; Martins, R. P.1,2
2023-06
Conference Name2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)
Source Publication2023 Symposium on VLSI Technology and Circuits Digest of Technical Papers
Volume2023-June
Conference DateJune 11-16, 2023
Conference PlaceKyoto, Japan
CountryJapan
PublisherInstitute of Electrical and Electronics Engineers Inc.
Abstract

This paper presents a 32× low-noise dynamic amplifier
(DA) with a linearity-shifting technique, facilitating a 15b
pipelined-SAR ADC with 80dB SNR@DC. The linearity-shifted
DA decouples the fundamental conflict between the noise and
linearity in conventional DAs, rending a THD below ‒60dB at
0.8Vpp,diff output swing. Moreover, the reference voltages are
stabilized by the cost-effective mounted-over-die bypass
capacitors. The 60MS/s ADC achieves 95.8dB and 87.3dB
SFDR with a DC and Nyquist input, respectively, and an input
noise density of 10.2nV/√Hz.

KeywordDynamic Amplifier Residue Amplifier Pipelined-sar Adc Linearization Technique Bypass Capacitor
DOI10.23919/VLSITechnologyandCir57934.2023.10185416
URLView the original
Language英語English
Scopus ID2-s2.0-85167568605
Fulltext Access
Citation statistics
Document TypeConference paper
CollectionFaculty of Science and Technology
THE STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI (UNIVERSITY OF MACAU)
INSTITUTE OF MICROELECTRONICS
Corresponding AuthorZhang, Minglei
Affiliation1.State-Key Laboratory of Analog and Mixed-Signal VLSI, IME, University of Macau, Macao, China
2.Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Zhang, Minglei,Cao, Yuefeng,Zhu, Yan,et al. A 79.5dB-SNDR Pipelined-SAR ADC with a Linearity-Shifting 32× Dynamic Amplifier and Mounted-Over-Die Bypass Capacitors[C]:Institute of Electrical and Electronics Engineers Inc., 2023.
APA Zhang, Minglei., Cao, Yuefeng., Zhu, Yan., Chan, Chi-Hang., & Martins, R. P. (2023). A 79.5dB-SNDR Pipelined-SAR ADC with a Linearity-Shifting 32× Dynamic Amplifier and Mounted-Over-Die Bypass Capacitors. 2023 Symposium on VLSI Technology and Circuits Digest of Technical Papers, 2023-June.
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