DC-to-5-GHz variable gain amplifier for high speed DSO

Yu Lee Yen, Chien-Nan Kuo, Ching Feng Lee, Kevin Chen

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

3 Scopus citations

Abstract

This paper presents the design of a variable gain amplifier for the frontend circuitry of 5-GHz high-speed digital storage oscilloscopes. The design challenge includes wide bandwidth and low distortion over the frequency range from dc to 5 GHz. The Cherry-Hooper amplifier configuration is used to tackle the issue. The designed variable gain covers the specified range from -2 to 38 dB. The gain flatness carries out ripples less than 1 dB. To verify our approach, two versions of the amplifier circuits are fabricated. With four cascaded stages, the maximum gain achieves larger than 40 dB. The circuits are designed in 0.35 μm SiGe technology.

Original languageEnglish
Title of host publication2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479962754
DOIs
StatePublished - 28 May 2015
Event2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015 - Hsinchu, Taiwan
Duration: 27 Apr 201529 Apr 2015

Publication series

Name2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015

Conference

Conference2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015
CountryTaiwan
CityHsinchu
Period27/04/1529/04/15

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