选择运算放大器获取最佳噪声性能

噪声分析是一项艰巨的任务，对许多设计工程师来说是一个陌生的领域。对噪声性能的最大影响来自伴随输入信号的源阻抗匹配。本文探讨的放大器选型对于新手或经验丰富的人来说，有助于设计者对任何给定的源阻抗都可选性能最佳的运算放大器。
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Op Amp Selection Guide for Optimum Noise Performance
Design Note 355
Glen Brisebois

Introduction RS
VR(EQ) VN

Linear Technology continues to add to its portfolio of low +
IN
noise op amps. This is not because the physics of noise
has changed, but because low noise specications are