Hi, Team
When I used the BUF802 and 2x LMH6401 for the analog front-end design, I found that the first-stage LMH6401 still had a 600mV common-mode voltage even with Vocm grounded. Is this an issue with the circuit design or a problem with the simulation model?
您能否分享您的TINA原理图? 嵌入响应中的图像模糊且难以阅读。
我想确认电路的几个方面: - LMH6401 DVGA上的电源电压 - VOCM连接(GND不浮动?) -交流耦合,滤波,直流节点电压是否正确?