摘要
通过对热噪声源与抑制技术手段的分析,以供电方式隔绝外界干扰,筛选器件并优化控制电路,实现多级低热噪声偏压输出。测试结果表明,输出噪声均方根值可控制在0.6μV以内,能满足某高灵敏度电子器件的测试工作需要。
Through analyzing the thermal noise and suppression techniques , using special power supply to isolated the outside interference , screening devices and optimizing the control circuit filter device , this paper realizes multi-stage bias output with low thermal noise . Testing experiment shows that the output noise RMS value can be controlled within 0 . 6μV . The experimental results can meet testing needs of some high sensitive electronics .
出处
《微型机与应用》
2014年第16期28-30,36,共4页
Microcomputer & Its Applications
关键词
超低热噪声
电源系统
器件筛选
抑制控制
实验测试
low thermal noise
power supply system
screening devices
suppression techniques
experimental test
