OTA-C lowpass design using evolutionary algorithms

The paper proposes a non-conventional design of OTA-C low-pass filter including multi-criterion optimization of final filter structure parameters. The optimization procedure is based on the Differential Evolutionary Algorithms usage and allows simultaneously to minimize filter element values spread and to optimize dynamic properties of filter structure. The basic features of the used algorithms are presented. The design procedure is illustrated by a numerical example of the 5th-order Cauer LP filter.