This circuit is shown in Figure 5 and is useful as a computational amplifier, in making a differential to single-ended conversion or in rejecting a commonmodesignal.
电路见图5，这种电路在运算电路中相当有用，比如差分对单端的转换，抑制共模信号。
2
The measurement is made by injecting a differential modesignal (DM) into a twisted pair, then measuring the commonmodesignal (CM) returned on that same twisted pair.
翻译：测量是通过向双绞线注入差模信号(DM)，然后测量同一对双绞线返回的共模信号(CM)。
3
Commonmode noise suppression of signal lines in high speed and high density digital equipment as personal computers and peripherals.