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.
还有就是 小信号放大是不是反相比例比同相好 谢谢了
理论上都一样, 实际上面对这么小的信号还是有点难度的. 如何降纹波, 降噪声, 避免这么微弱的信号淹没在噪声里.
精密的运放做前级, 多级放大.
建议使用LC谐振电路做低噪声放大器放大，就跟收音机的放大原理一样的。
