A 15.4ppm/°C GaN-based Voltage Reference with Process-Variation-Immunity and High PSR for EV Power Systems

Po Jui Chiu, Tz Wun Wang, Chi Yu Chen, Sheng Hsi Hung, Yu Ting Huang, Xiao Quan Wu, Ke Horng Chen, Kuo Lin Zheng, Chih Chen Li

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

1 Scopus citations

Abstract

The proposed GaN-based voltage reference (VREF) generator (VRG) has a low temperature coefficient (TC) of 15.4ppm/°C, a small deviation of VREF at different process corners with a standard deviation of 0.22%, a great line sensitivity of 0.0023%/V, and a great power-supply rejection (PSR) of -187dB and -114dB at 100Hz and 50MHz, respectively. The proportional-to-absolute-temperature (PTAT) IG of enhancement-mode GaN (eGaN) can optimize TC. Eliminating the IG of depletion-mode GaN (dGaN) and using multiple stacked composite dGaN can improve line regulation and PSR. All performance is achieved with a low power consumption of 10.9μ W.

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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