Title :
Low voltage adjustable CMOS Schmitt trigger
Author :
Singhanath, Pratchayaporn ; Suadet, Apirak ; Kanjanop, Arnon ; Thongleam, Thawatchai ; Kuankid, Sanya ; Kasemsuwan, Varakorn
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper presents a low voltage adjustable CMOS Schmitt trigger using dynamic threshold MOS (DTMOS). Cross-coupled inverter with body control is employed to speed up the switching process, and control the intensity of the feedback. The proposed Schmitt trigger has been designed using 0.18 μm 0.4 V CMOS technology and analyzed using PSPICE with BSIM3V3 device models. The simulation results show rail-to-rail operation and independently adjustable switching voltages for both low-to-high (VT(LH)) and high-to-low (VT(HL)) as high as 15% of the supply voltage. The power dissipation is 0.13 μW.
Keywords :
CMOS digital integrated circuits; SPICE; logic gates; low-power electronics; trigger circuits; BSIM3V3 device models; PSPICE; adjustable CMOS Schmitt trigger; cross-coupled inverter; dynamic threshold MOS; low-voltage CMOS Schmitt trigger; power dissipation; rail-to-rail operation; size 0.18 mum; voltage 0.4 V; CMOS integrated circuits; Hysteresis; Inverters; Low voltage; Switches; Threshold voltage;
Conference_Titel :
Modeling, Simulation and Applied Optimization (ICMSAO), 2011 4th International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4577-0003-3
DOI :
10.1109/ICMSAO.2011.5775531
