A Sub-1 ppm/°C TC Bandgap Voltage Reference with High Power Supply Rejection

Jiapeng Shen, Shengxi Diao

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

6 Scopus citations

Abstract

In this paper, a bandgap voltage reference (BGR) with low temperature coefficient (TC) and high power supply rejection (PSR) is proposed. To obtain a low TC, an exponential compensation circuit is inserted to the BGR, which calibrate the high-order temperature coefficient of the base-emitter voltage $V_{BE}$ in bipolar transistor. A PSR enhancement stage is inserted to suppress supply noise. In the post-layout simulation, TC is 0.2 ppm/°C over -55°C to 125 °C and the PSR is -71.4dB@100KHz and -70.2dB@1MHz. Fabricated in 0.18um BiCMOS technology, the proposed bandgap voltage reference obtain an active area of 125um x 83um.

Original languageEnglish
Title of host publicationProceedings - 2022 15th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2022
EditorsXin Chen, Lin Cao, Qingli Li, Yan Wang, Lipo Wang
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665488877
DOIs
StatePublished - 2022
Event15th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2022 - Beijing, China
Duration: 5 Nov 20227 Nov 2022

Publication series

NameProceedings - 2022 15th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2022

Conference

Conference15th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2022
Country/TerritoryChina
CityBeijing
Period5/11/227/11/22

Keywords

  • bandgap voltage reference
  • high power supply rejection
  • high precision
  • low temperature coefficient
  • start up

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