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介绍了一种在重离子和γ射线环境下，基于计算机控制的Ａ／Ｄ转换器特性动态测试技 术，并给出了高精度Ａ／Ｄ转换器ＡＤ５７４Ａ的总剂量辐射测试数据。结果表明，对主要转换码值 直流参数与线性度的测试完全适合于Ａ／Ｄ加固设计的评估；其性能价格比优于全速动态测试 技术．
A dynamic measurement technique based on computer controlled A / D converter under heavy ion and γ-ray environment is introduced. The data of total dose radiation of AD574A high precision A / D converter is given. The results show that the test of the DC parameters and linearity of the main conversion code is completely suitable for the evaluation of A / D reinforcement design. The performance-price ratio is superior to the full-speed dynamic testing technology.