Voulgari, E.Noy, M.Anghinolfi, F.Perrin, D.Krummenacher, F.Kayel, M.2016-04-012016-04-012016-04-01201610.1088/1748-0221/11/02/C02071https://infoscience.epfl.ch/handle/20.500.14299/125368WOS:000371479800071An ultra-low leakage current Application Specific Integrated Circuit (ASIC) called Utopia (Ultralow Picoammeter) has been designed and fabricated in AMS 0.35 mu m CMOS, in order to be used as the front-end for ionising radiation monitoring at CERN. It is based on the topology of a Current to Frequency Converter (CFC) through charge balancing and demonstrates a wide dynamic range of 8.5 decades without range changing. Due to a design aimed at minimising input leakage currents, input currents as low as 10 fA can be measured.Analogue electronic circuitsRadiation monitoringFront-end electronics for detector readouttext::conference output::conference proceedings::conference paper