Analysis and improvements of accurate dynamic current mirrors

Analysis and improvements of accurate dynamic current mirrors
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精密动态电流镜的分析与改进

DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
E. Vittoz
E. Vittoz
中科院分区：
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文献类型：
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作者：
G. Wegmann;E. Vittoz

文献摘要

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考虑了基于动态模拟技术及其改进实现高精度动态电流镜的可能性。这些记忆输入电流的电流镜对晶体管失配不敏感，而对于常规电流镜，准确性受到可实现的匹配的限制。给出了不同的电流镜结构，给出了接口参数，并解释了它们的影响。示出了在切换期间发生的主要瞬态。提出了改进，允许增加动态电流镜的性能，并示出了实验结果。>
The possibility of realizing highly accurate dynamic current mirrors based on dynamic analog techniques and improvements thereof is considered. These current mirrors, which memorize the input current, are insensitive to transistor mismatch, whereas for conventional current mirrors, the accuracy is limited by the achievable matching. Different current mirror structures are presented, the interfacing parameters are shown, and their influence is explained. The dominant transients occurring during switching are shown. Improvements which allow for increases in the performance of dynamic current mirrors are proposed, and experimental results are shown. >