摘要： 亚历山大 · 贝尔 1881 年申请专利双绞线。我们仍然使用它们今天因为他们工作得这么好。另外我们在我们的世界有了令人难以置信的计算机电源的优势。很少或没有成本，供电路模拟器和筛选器的设计程序。我们结合产生的无线电频率干扰 (RFI) 和电磁干扰 (EMI) 壮观排斥的双绞线和低通滤波器。我们还说明了使用的精密电阻阵列，以产生一个可定制的微分放大器。精密电阻器设置增益和共模排斥反应的比例，而我们选择的频率响应。Maxim > Design Support > Technical Documents > Application Notes > A/D and D/A Conversion/Sampling Circuits > APP 4644 Maxim > Design Support > Technical Documents > Application Notes > Amplifier and Comparator Circuits > APP 4644 Maxim > Design Support > Technical Documents > Application Notes > Communications Circuits > APP 4644 Keywords: twisted pair, differential instrumentation amplifier, precision resistors, cancelling interference, RFI, EMI, radio frequency, electromagnetic, lowpass filter, clean signals, FPGA Jun 13, 2012 APPLICATION NOTE 4644 Use a Twist and Other Popular Wires to Reduce EMI/RFI By:Bill Laumeister, Strateg……