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Single-ended/differential 2.5-GS/s double switching Track-and-hold amplifier with 26GHz bandwidth in SiGe BiCMOS technology

  • Telecom Paris
  • Thales Group

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

Abstract

Distorsion and attenuation occuring during track and hold transition are challenging for Track-and-hold amplifier (THA) with bandwidth larger than 10GHz. Moreover, single-ended to differential conversion is mainly required for radar applications. A single-ended/differential wideband THA circuit with a specific clock delay line buffer is proposed. The demonstrated technique is robust and results in a low distortion and low attenuation sampling operation for an input power of -5dBm over the entire bandwidth. The validity of the concept has been demonstrated by a circuit realized in 130nm SiGe BiCMOS. Furthermore, the proposed compensated balun allows to achieve a low phase difference (±4.5 o) and gain variation (0.25dB) in the [1-26]GHz frequency band. An effective bandwidth of 26GHz was measured with a Total-Harmonic-Distorsion (THD) of -51dB@10 GHz and -39dB@20 GHz at a sampling rate of 2.5 GS/s.

Original languageEnglish
Title of host publication2016 IEEE MTT-S International Microwave Symposium, IMS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509006984
DOIs
Publication statusPublished - 9 Aug 2016
Event2016 IEEE MTT-S International Microwave Symposium, IMS 2016 - San Francisco, United States
Duration: 22 May 201627 May 2016

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2016-August
ISSN (Print)0149-645X

Conference

Conference2016 IEEE MTT-S International Microwave Symposium, IMS 2016
Country/TerritoryUnited States
CitySan Francisco
Period22/05/1627/05/16

Keywords

  • Active balun
  • Balun
  • Low attenuation
  • Low distortion
  • SiGe BiCMOS
  • THA
  • Track-and-Hold
  • switched buffer

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