BiCMOS current-mode integrators suitable for low-voltage continuous-time filters

Abstract

BiCMOS current-mode integrators suitable for low-voltage continuous-time filters are proposed, offering low-voltage operation, high speed and wide-range tuning. When compared with other BiCMOS structures, they offer simplicity in design without requiring extra cost. Various continuous-time filters are implemented from the proposed integrators and tuning methods are developed for these filters. The simulation results are in good agreement with the expectations.