An Improved Performances FGMOS Voltage Comparator for Data Acquisition Systems

A new voltage comparator was presented, using exclusively MOS transistors working in the saturation region for improving the circuit speed. In order to increase the controllability of the proposed voltage comparator and to achieve the possibility of comparing differential voltages, FGMOS (floating gate MOS) transistors were used to replace classical MOS active devices. An original method for reducing the linear region of the comparator was proposed, based on the biasing in the neighborhood of the subthreshold region of the MOS active devices