【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。更多还原

【Abstract】 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. 6 μV. The experimental results can meet testing needs of some high sensitive electronics.更多还原