A cryogenic high-voltage amplifier for ion traps

Michael Sieberer, Christoph Sandner, Peter Hadley

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

Abstract

Ion traps for quantum computers need high voltages to confine ions in an electrostatic potential. This work presents a high voltage current-feedback instrumentation amplifier, implemented in 130 nm-CMOS, that is fully functional at temperatures below 20 K and dissipates only 1.5 mW when powered with ±12 V. Since drain-extended MOS transistors cannot be used at cryogenic temperatures, high-voltage compliance is achieved by stacking low-voltage transistors. The high-frequency noise is below 8 nV/vHz to avoid ion heating. Flicker noise and offset is reduced by chopping of the input gain stages.

Original languageEnglish
Title of host publicationSMACD / PRIME 2021 - International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design and 16th Conference on PhD Research in Microelectronics and Electronics
PublisherVDE-Verlag GmbH, Berlin, Offenbach
Pages408-411
Number of pages4
ISBN (Electronic)9783800755899
Publication statusPublished - 2021
Event2021 International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, and 16th Conference on PhD Research in Microelectronics and Electronics: SMACD 2021 / PRIME 2021 - Virtual, Online, Transnationally
Duration: 19 Jul 202122 Jul 2021

Conference

Conference2021 International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, and 16th Conference on PhD Research in Microelectronics and Electronics
Country/TerritoryTransnationally
CityVirtual, Online
Period19/07/2122/07/21

Keywords

  • Chopper amplifier
  • Cryogenic electronics
  • High voltage
  • Ion traps
  • Quantum computing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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