A differential amplifier amplifies the difference between two input signals.
差分放大器会放大两个输入信号之间的差值。
In many op-amps, a differential amplifier at the input stage helps reject common-mode noise and improves measurement accuracy.
在许多运算放大器中,输入级的差分放大器有助于抑制共模噪声,从而提高测量精度。