hybrid utilization of OpAmp

SC biquad filter with hybrid utilization of OpAmp and comparator-based circuit

FREE-DOWNLOAD MA Martins, KF Un, PI Mak… – Circuits and Systems ( …, 2010 –
Abstract—This paper proposes a differential switched-capacitor (SC) biquad filter exploiting a
hybrid structure. The 1st active core is an operational amplifier (OpAmp) whereas the 2nd is an
improved comparator-based circuit (CBC). The advantages of this new structure are .