Search
Links
-
A Basic Introduction to Filters - Active, Passive and Switched-Capacitor
This tutorial is intended to serve as a very basic introduction to some of the fundamental concepts and terms associated with filters. It will not turn a novice into a filter designer, but it can serve as a starting point for those wishing to learn more about filter design.
http://www.national.com/an/AN/AN-779.pdf -
Signal Path Webench Designer - Choose your A/D Converter and Active Filter Design
The input signal may be a signal from a sensor that is amplified or adjusted through signal conditioning. To prevent distortion from an out-of-bandwidth signal or noise the signal passes through an anti-aliasing filter. By using a multiple-feedback topology, the filter is able to hold a steady common-mode voltage, thereby reducing the linearity errors from the amplifiers.
http://www.national.com/signalpath/webench.html -
WEBENCH Active Filter Designer, Active Filter Simulation
Send us a Feedback about how it works for you! Instructions: Begin your design by selecting from the list of options for filter type: Lowpass filter, Highpass filter, or Bandpass filterand choosing between optimizing your filter by its performance or by approximation. Frequency Response (Filter Performance).
http://www.national.com/appinfo/amps/webench_filters.html -
Introducing the MF10: A Versatile Monolithic Active Filter Building Block
A unique alternative for active filter designs is now available with the introduction of the MF10. This new CMOS device can be used to implement precise, high-order filtering functions with no reactive components required.
http://www.national.com/an/AN/AN-307.pdf -
Low-Sensitivity, Lowpass Filter Design
This tutorial covers the design of a Sallen-Key (also called KRC or VCVS lowpass biquad with low component and op amp sensitivities. This method is valid for either voltage-feedback or current-feedback op amps. Basic techniques for evaluating filter sensitivity performance are included. A filter design example illustrates the method.
http://www.national.com/an/OA/OA-27.pdf
