This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
您好，
LM318最小供电电压是10V，您虽然使用的10V电源，但是看仿真串联的1K电阻产生了将近6V的压降，使得运放供电电压约4V，已经不满足LM318的供电规格。
看样子你是要设计带通滤波器，我在网上找到下面链接有二阶带通滤波器的设计步骤，和您每个运放搭建的二阶滤波器的架构是一样的，您可以参考看下：
https://www.sohu.com/a/200449574_819258
