Abstract
This paper presents a low voltage adjustable CMOS Schmitt trigger using DCG-FGT transistor. Simple circuit is introduced to provide flexibility to program the hysteretic threshold in this paper. The hysteresis can be controlled accurately at a large voltage range. The proposed Schmitt trigger has been designed using 90nm 1.2V CMOS technology and simulated using Eldo with PSP device models. The simulation results show rail-to-rail operation and independently adjustable switching voltages V TH- (low switching voltage) and V TH+ (high switching voltage).
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