Project Analog - November 2008 - (Page 22)

mINDI™ Active Filter Designer Contents Viewpoint The Mindi™ Active Filter Designer is an Application Circuit within the Mindi™ Analog Simulator tool. The Mindi™ Analog Simulator tool provides full schematic diagrams of the active filter circuit with recommended component values and displays the signal responses in frequency and time domains. The Mindi™ Active Filter Designer allows the design of low-pass filters up to an 8th-order filter with Chebychev, Bessel or Butterworth approximations from frequencies of 0.1 Hz to 1 MHz. It also can be used to design band-pass and high-pass filters with Chebychev and Butterworth approximations. The circuit topologies supported by the tool are the Sallen Key and Multiple Feedback (MFB). The low-pass filters can use either the Sallen Key or MFB, the band-pass filter is available with the MFB and the high-pass filter uses the Sallen Key. Users can select a flat pass-band or sharp transition from pass-band to stop-band. Other options, such as minimum ripple factor, sharp transition and linear phase delays are available. Once the filter characteristics have been identified, the Mindi™ Active Filter Designer can generate and simulate the schematic of filter circuit. For maximum design flexibility, changes in resistor and capacitor values can be implemented to fit the demands of the application. The tool will recalculate all values to meet the desired response, allowing real-world values to be substituted or changed as part of the design process. The tool also generates a Bill of Materials (BOM) of the designed filter. Users can directly order the op amps and evaluation boards from the Microchip web site at www.microchip.com. www.microchip.com/Mindi Selecting the Proper Amplifier Using a Digital Potentiometer to Optimize a Photo Detection Circuit Resistor Networks in Critical Applications Analog news Microchip analog page Sample center microchipDIRECT Reference designs/ app notes Technical training 22 · PROjeCt ANAlOG · VOlUme 2 / NUmbeR 6 http://www.microchip.com http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=79&redirects=analog http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=79&redirects=analog http://sample.microchip.com/Default.aspx?testCookies=true http://www.microchip.com http://www.microchipdirect.com/catalogselection.aspx?returnURL=default.aspx http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en537206&redirects=mindi http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1469&filter1=function&redirects=appnotes http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1469&filter1=function&redirects=appnotes http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1423

Table of Contents Feed for the Digital Edition of Project Analog - September 2008

Project Analog - September 2008 Contents Viewpoint About Project Analog Sponsor Selecting the Proper Amplifier for Strain Gauge Applications An Overview of Analog Sensor Conditioning Circuits Using a Digital Potentiometer to Optimize a Photo Detection Circuit Resistor Networks in Critical Applications Selecting the Right Op Amp Analog News Contact Microchip New Microchip Products Treelink MINDI™ Active Filter Designer Microchip Advanced Parts Selector (MAPS)

Project Analog - September 2008

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