It is not in need of buffer stage for cascading because of high input impedance.

因为具有很高的输入阻抗，所以级联时不需缓冲级。

youdao

It is not in need of buffer stage for cascading because of high input impedance.

因为具有很高的输入阻抗，所以级联时不需缓冲级。

youdao