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

fYear

2011

fDate

19-21 April 2011

Firstpage

1

Lastpage

4

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 (V_T(LH)) and high-to-low (V_T(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;

fLanguage

English

Publisher

ieee

Conference_Titel

Modeling, Simulation and Applied Optimization (ICMSAO), 2011 4th International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4577-0003-3

Type

conf

DOI

10.1109/ICMSAO.2011.5775531

Filename

5775531