谢谢您的回复,在一篇论文中看到如下的解释,没明白什么意思,请高人指点。附图。
The common-mode signal detector is formed with two 40k resistors in parallel with 1-pF capacitors. The purpose of the
latter elements is to provide a high-frequency bypass of the distributed capacitance between the n-well resistors and the substrate to maintain stability of the common-mode feedback loop.