Abstract—
An MH2XA031 master slice array (basic matrix crystal (BMC)) is applied for designing and semicustom production of analog integrated circuits (ICs) operating in extreme conditions. It can be effectively used only with a clear understanding of the permissible ranges of changes in the parameters of analog components when exposed to various types of penetrating radiation. In this study, with the help of circuit simulation, the effect of neutron fluence up to 1014 neutrons/cm2 and the absorbed dose of gamma rays up to 3 Mrad on the static parameters of the components of the MH2XA031 circuit design library—an ADComp3 comparator, an OAmp2 low zero offset voltage operational amplifier, an OAmp8 multidifferential operational amplifier, and a charge-sensitive amplifier (CSA) with an input double-gate transistor—is studied. It is established that the ADComp3 comparator, the OAmp2 and OAmp8 amplifiers, and the CSA remain operational at an absorbed dose of gamma rays equal to 3 Mrad. The permissible neutron fluence values for ADComp3, OAmp8, and CSA are 1014 neutrons/cm2; and for OAmp2, 1013 neutrons/cm2. It is established that modeling the radiation changes in the parameters of the components at higher neutron fluences (more than 1014 neutrons/cm2) and the absorbed gamma quanta of more than 3 Mrad is advisable after experimental verification of the adequacy of the transistor models used at the specified levels of penetrating radiation.
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This work was supported by the Russian Science Foundation, project no. 22-29-00637.
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Dvornikov, O.V., Tchekhovsky, V.A., Prokopenko, N.N. et al. Radiation Hardened Components of Semicustom Analog Microcircuits. Russ Microelectron 52, 599–607 (2023). https://doi.org/10.1134/S1063739723070077
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DOI: https://doi.org/10.1134/S1063739723070077