A biasing and demodulation system for kilopixel TES bolometer arrays

Graeme Smecher, François Aubin, Eric Bissonnette, Matt Dobbs, Peter Hyland, Kevin MacDermid

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


We describe the signal processing logic, firmware, and software for a frequency-domain multiplexed biasing and demodulation system that reads out transition-edge-sensor bolometer arrays for millimeter-wavelength cosmology telescopes. This system replaces a mixed-signal readout back end with a much smaller and more power-efficient system relying on field-programmable gate arrays for control, computation, and signal processing. The new system is sufficiently robust, automated, and power efficient to be flown on stratospheric balloon-borne telescopes and is being developed further for satellite applications.

Original languageEnglish (US)
Article number5978802
Pages (from-to)251-260
Number of pages10
JournalIEEE Transactions on Instrumentation and Measurement
Issue number1
StatePublished - Jan 1 2012


  • Digital signal processing
  • digital up/down converters
  • field-programmable gate arrays (FPGAs)

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