SLOA049D July 2000 – February 2023
Filter tables are developed to simplify circuit design based on the idea of cascading lower-order stages to realize higher-order filters. The tables contain scaling factors ( ) for the corner frequency ( ) and the required quality factor ( ) of each of the stages for the particular filter being designed. The tables enable designers to skip straight to calculating required circuit component values.
To illustrate an actual circuit implementation, six circuits, separated into three types of filters (Bessel, Butterworth, and Chebyshev) and two filter configurations (Sallen-Key and Multiple Feedback), are simulated using a TLV9062 operational amplifier. Limiting factors in the high-frequency performance of the filters are also examined. The tables in this document are used in the Analog Engineer’s Circuit Cookbook: Amplifiers.