Compensation of G _m ‐C lossless integrator for finite output resistance

Abstract

In this Letter, a general compensation method for finite parasitic output impedance of G m in G m-C lossless integrator is discussed. The use of a G m-simulated negative resistor in series with an integrating capacitor in a lossless integrator is shown to minimise the effects of the finite output impedance of G m-cell. The proposed method is employed in a secondorder G m-C notch filter to improve the stop-band response of the filter.