运放在高增(放大倍数为100)时产生固定频率60KHz和幅值3~4mV固定的纹波,随着输入信号的增加,纹波的大小和频率基本上没有变化,这个是什么原因造成的?
而低增益(放大倍数为2)时,没有明显的固定频率和幅值固定的纹波。为什么?
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.