在模拟电路设计中，buffer是干什么用的

模拟电路中,一般指射极跟随器为缓冲器,主要用作阻抗变换之用.

The Buffer with Hysteresis is an ideal component for converting a real signal into a logic signal. The hysteresis function provides some noise immunity by preventing a transition to a new logic state until the input signal has moved decidedly across the input threshold.

While the input signal is inside the hysteresis region, the previous output level is maintained.

缓冲区