基于标准工艺的模数转换器抗辐照加固设计与验证

发布时间：2018-01-02 12:35

本文关键词：基于标准工艺的模数转换器抗辐照加固设计与验证　出处：《电子科技大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着电子信息技术的不断发展,模数数据转换器被更加广泛应用于航天电子设备中,如各类人造卫星,航天飞行器等,它的抗辐射加固能力是航天电子设备保证其正常运行的基本要求和技术瓶颈之一。因此,模数数据转换器的抗辐射加固技术对空间应用技术的发展具有重大意义。本论文针对瓶颈应用需求,以高速高精度模数转换器的抗辐照加固设计与验证为主要的研究对象,在深入分析当今高速高精度模数转换器理论和技术原理的基础上,对高速高精度模数转换器的设计架构、抗辐照设计和验证进行了详尽的讨论和研究。根据辐照源的不同详细分析了影响模数转换器最常见的总剂量效应和单粒子效应的产生物理机制和损伤机理,并针对损伤机理从电路设计、版图布局及工艺加工等多个方面介绍了抗辐射加固的方法。基于标准CMOS混合信号工艺设计实现了一个抗辐照高速16位模数转换器,解决了电路主要的关键单元的关键技术:采用了一种无采保CMOS输入缓冲器结构,有效降低了电路的功耗,并具有恒定阻抗和高线性度的特点;设计的流水线核通过高网络线性度的前端设计、电容失配的修调电路设计等措施达到整体模数转换器指标需求;稳定的时钟占空比控制电路有效保证了后级流水线的正常工作。最后,采用抗辐射加固技术对高速高精度模数转换器进行了抗辐射设计,完成版图设计及工艺流片,通过自建的高速高精度模数转换器参数测试系统及辐照试验评估系统对封装样品进行测试验证,结果表明文章设计的抗辐射高速高精度模数转换器达到设计要求。
[Abstract]:With the continuous development of electronic information technology, analog to digital data converter is more widely used in aerospace electronic equipment, such as various types of satellites, spacecraft, radiation hardening ability is one of the basic requirements of its normal operation and technical bottleneck of aerospace electronic equipment guarantee. Therefore, is of great significance to strengthening anti radiation development of technology the application of analog to digital data converter space. This thesis aiming at the bottleneck of the application requirements, with high speed and high precision ADC radiation hardened design and verification as the main object of study, based on analysis of the high speed and high precision analog-to-digital converter theory and technology principle, design architecture of high speed and high precision analog-to-digital converter, anti radiation design and verification is discussed and studied. According to the detailed analysis of the different irradiation effects of the most common ADC total The physical mechanism and damage mechanism of dose effect and single event effect, and the damage mechanism from the aspects of circuit design, layout and process etc. introduced the method of radiation resistant. The standard CMOS mixed signal process design and implementation of a high speed anti radiation 16 bit analog to digital converter based on the key technologies to solve the key unit the main circuit: using a CMOS input buffer structure, effectively reduce the power consumption of the circuit, and has the characteristics of constant impedance and high linearity; high linearity front-end design network design of pipelining, trimming circuit design measures such as capacitor mismatch analog-to-digital converter to achieve the overall demand index stability; clock duty ratio control circuit ensures the normal work after the pipeline. Finally, the high speed and high precision analog-to-digital converter with anti radiation hardening technology The design of anti radiation, the completion of layout design and process, with high speed and high precision ADC parameters testing system and self irradiation test evaluation system to validate the samples, results show that the design of the anti radiation of high speed and high precision analog-to-digital converter to meet the design requirements.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN792

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