Novel enhanced pole selectivity bandpass filter with large dynamic range

Abstract

A high pole selectivity (Q/sub p/) bandpass filter realizable in MOSFET-C topology is suggested. The op-amps are used in fully balanced topology which has good power supply noise rejection. The proposed filter has low op-amp count in addition to a wide dynamic range. The circuit has been compared with conventional enhanced pole selectivity bandpass filter. The circuit is simulated by SPICE and a dynamic range of 123.39 dB is obtained for Q/sub p/ value of 60.