Title :
Designs of analog and digital comparators with FGMOS
Author :
Nandhasri, K. ; Ngarmnil, J.
Author_Institution :
Dept. of Electron. Eng., Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
Designs of analog and digital comparators are presented in this paper. We exploit the threshold voltage operation characteristic of floating-gate MOSFETs to produce a hysteresis-tunable analog voltage comparator. Consequently, the proposed analog comparator circuit is developed to a digital comparator using replacement of floating-gate MOSFETs for the input devices of which the drain currents are linear sums of the weighted multiple-input voltages which are then applied as binary bits. Simulation results on 1.2 μm CMOS are demonstrated
Keywords :
CMOS analogue integrated circuits; CMOS digital integrated circuits; circuit feedback; circuit simulation; comparators (circuits); 1.2 micron; CMOS; FGMOS; binary bits; digital comparator; drain currents; floating-gate MOSFETs; hysteresis-tunable analog voltage comparator; threshold voltage operation characteristic; weighted multiple-input voltages; Analog circuits; Circuit simulation; Design engineering; Equations; Feedback; Hysteresis; MOSFETs; Threshold voltage; Tunable circuits and devices; Virtual manufacturing;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921779
