The sample and hold circuit is employed by the bottom plate sampling technique, which could not only cancel the charge injectionerror but also eliminate the effect of clock feed-through.
The basic unit structure of the SI is introduced in this paper. It also discusses the main factors which affects the precision of fault diagnosis and analyzes the charge injectionerror in detail.
介绍了开关电流电路的基本单元结构，讨论了影响故障诊断精度的主要因素，重点分析了电荷注入误差。
3
Feature value grows more and more slowly, levels off, perhaps even starts to decline as errorinjection swamps feature injection.