New op-amp-RC to G(m)-C transformation method
A new transformation method is proposed and used to transform op-amp-RC circuits to G(m) -C ones with only grounded capacitors. The proposed method enables the generation of high-performance G(m) -C filters that benefit from the advantages of good and well-known op-amp-RC structures and at the same time feature electronic tunability, high frequency capability and monolithic integration ability. An attractive feature of the proposed method is that it results in G(m) -C structures with only grounded capacitors in spite of the presence of floating capacitors in the original op-amp-RC circuits.
transformation method g(m)-c filters generation of g(m)-c circuits