000256722 001__ 256722
000256722 005__ 20190812210028.0
000256722 0247_ $$2doi$$a10.22323/1.313.0003
000256722 02470 $$2DOI$$a10.22323/1.313.0003
000256722 037__ $$aCONF
000256722 245__ $$aCharacterization of a 9-Decade Femtoampere ASIC Front-End for Radiation Monitoring
000256722 260__ $$c2018-03-20
000256722 269__ $$a2018-03-20
000256722 336__ $$aConference Papers
000256722 520__ $$aAn ultra-low current sensing digitizer circuit was designed for radiation monitoring for personnel and environmental safety at CERN. The Ultralow Picoammeter 2 (Utopia 2) ASIC includes some key functionalities like on-chip active leakage current compensation, charge balancing and range changing. It was designed in AMS 0.35 μm technology that was selected for its low leakage current performance. The architecture is based on the asynchronous current to frequency converter (CFC) and the front-end can digitize input currents over a wide dynamic range of 9 decades. If the measurement time is equal to 100 s, the ASIC can measure current as low as 1 femtoampere (fA). The calibration procedure and the measurements of the Utopia 2 ASIC are summarized in this article. The ASIC has been characterized for its ultra-low current performance at the Swiss Federal Institute of Metrology (METAS)
000256722 542__ $$fCC BY-NC-ND
000256722 700__ $$g223124$$0247380$$aVoulgari, Evgenia
000256722 700__ $$aNoy, Matthew
000256722 700__ $$aAnghinolfi, Francis
000256722 700__ $$aPerrin, Daniel
000256722 700__ $$aKrummenacher, François
000256722 700__ $$aKayal, Maher
000256722 7112_ $$aTopical Workshop on Electronics for Particle Physics (TWEPP-17)$$cSanta Cruz, California$$d11 - 14 September 2017
000256722 773__ $$tProceedings of Science$$j313$$q003
000256722 8564_ $$zFinal$$uhttps://infoscience.epfl.ch/record/256722/files/TWEPP-17%20003.pdf$$s5158025
000256722 8560_ $$fpierre.devaud@epfl.ch
000256722 909C0 $$xU11978$$pELAB$$mmaher.kayal@epfl.ch$$0252315
000256722 909CO $$qGLOBAL_SET$$pconf$$pSTI$$ooai:infoscience.epfl.ch:256722
000256722 960__ $$aevgenia.voulgari@epfl.ch
000256722 961__ $$apierre.devaud@epfl.ch
000256722 973__ $$aEPFL$$rREVIEWED
000256722 980__ $$aCONF
000256722 981__ $$aoverwrite