Many sensors have a small analog signal that rides on top of a larger dc pedestal. For these circuits (Fig. 1), the signal must be ac coupled and amplified before it’s digitized. The feedback of an ...

The CHPFL Series high-pass filters come encased in rugged SMA housings designed for use in test equipment and general lab apps. Five models with frequency ranges from DC to 100 MHz through 1 GHz are ...

Several manufacturers offer op amp-based filter design tools [1-3]. Some tools choose off-the-shelf capacitor values, but others select non-standard ones. The option to alter passive component ...

This application note covers the basics of Filter design. It covers a variety of filter topologies and explains the benefits. Circuit diagrams and filter transfer functions are described in the paper.