模擬OP時close loop出現奇怪的振盪現象

arsenal_he · 發表於 2010-5-21 08:22:24

Try increase compensation cap.
Re-run ac sim again while adjusting the input DC point

arsenal_he · 發表於 2010-5-21 10:31:53

本帖最後由 arsenal_he 於 2010-5-21 10:33 AM 編輯

How about set smaller plot step size?
In addition, how did u connect the close loop?

arsenal_he · 發表於 2010-5-22 01:13:45

You opamp is not rail2rail in or rail2rail out, and even for 1v application, still you need to decrease the vdsat of your current sources

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[問題求助] 模擬OP時close loop出現奇怪的振盪現象