In the last edition of Don’t Fear the Filter, we built up two examples of the simplest and most-used active filter of all time: the two-pole Sallen-Key lowpass. This time, we’re going to put two of ...

Most oscilloscopes are fitted with filters to help improve measurement by reducing overall noise in an acquisition to improve signal-to-noise ratio (SNR). Even the most basic oscilloscopes include an ...

The acronym “IF” as applied to superheterodyne receivers stands for “intermediate frequency” and so the above title is, to be a purist, an absurdity in referencing a “frequency frequency” but I've ...

We all know how to block the DC offset of an AC signal — that just requires putting a capacitor in series, right? But what if the AC signal doesn’t alternate very often? In that case, things get a ...

Heralded as a first, the CM01S600 common-mode choke coil provides a 10-GHz cut off frequency, making the component viable and desirable for deployment in USB 3.0 designs. Employing a precision ...