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针对COTS元器件没有考虑空间辐射环境的影响导致的高风险,特别是单粒子效应,使用重离子对空间科学用的数字信号处理器(DSP)、现场可编程门阵列(FPGA)和模数转换器(ADC)开展了单粒子效应试验研究,分析了这几种COTS元器件单粒子效应发生时的现象。结果表明:TMS570LS20216型DSP的单粒子闩锁阈值低于12.6 MeV·cm~2/mg,A3PE3000L型FPGA的单粒子翻转阈值在个位数量级,ADS7883S型ADC的单粒子效应阈值大于36.8 MeV·cm~2/mg。试验结果可用于COTS元器件空间应用的系统级单粒子效应防护设计和风险评估。
COTS components are not considered for the high risk caused by the impact of space radiation environment, especially the single-particle effect, the use of heavy ion to digital signal processor (DSP) for space science, field programmable gate array (FPGA) and analog to digital conversion (ADC) to carry out a single-particle effect of experimental study, analysis of these COTS components single-particle phenomenon occurs. The results show that the single-particle latch-up threshold of the TMS570LS20216 DSP is lower than 12.6 MeV · cm -2 / mg, the single-particle inversion threshold of the A3PE3000L FPGA is on the order of single digits and the single-particle effect threshold of the ADS7883S ADC is greater than 36.8 MeV · cm- 2 / mg. Test results can be used for system-level single-particle effect protection design and risk assessment of COTS component space applications.