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Using popular wires to reduce EMI/RFI

Posted: 18 Feb 2013 ?? ?Print Version ?Bookmark and Share

Keywords:twisted pair wires? Circuit simulators? lowpass filters?

In 1881, Alexander Graham Bell patented twisted pair wires. We still use them today because they work so well. In addition we have the advantage of incredible computer power within our world. Circuit simulators and filter design programs are available for little or no cost. We combine the twisted pair and lowpass filters to produce spectacular rejection of radio frequency interference (RFI) and electromagnetic interference (EMI). We also illustrate use of a precision resistor array to produce a customisable differential amplifier. The precision resistors set the gain and common mode rejection ratios, while we choose the frequency response.

View the PDF document for more information.

Originally published by Maxim Integrated Products Inc. at as "Use a Twist and Other Popular Wires to Reduce EMI/RFI".

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