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https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/780133/lmp7721-lmp7721-guard-ring-s-problem-points
LMP7721防护环的问题点：
LMP7721的法拉第安防环、即中间输入线安防环、我们知道它连接到 LMP7721、但外部金属环是否接地？
如何在布局中以余量或什么方式实施防护环？
尊敬的 Dennis Goeke：
非常感谢您解决我的问题
