Inverting integrator and active filter applications of composite operational amplifiers

A new approach for extending the useful operating frequency range of linear active networks realized using operational amplifiers (OA's) has been reported [1]. The extension in bandwidth (BW) is achieved by replacing each of the single OA's in the active realization by a suitable composite OA (CNOA) that has been constructed usingNOA's. The use of the CNOA's to realize inverting integrators and active filters is presented here. The considerable performance improvement of these realizations is demonstrated both theoretically and experimentally. Their comparison with state-of-the-art designs is also given.