Title :
A novel CC-II based current comparator and its application as current mode flash ADC
Author :
Bhatia, Vandana ; Madan, Mohini ; Kaur, Baljit ; Pandey, Narendra ; Bhattacharyya, A.
Author_Institution :
Dept. of ECE, Indira Gandhi Delhi Tech. Univ. Delhi, New Delhi, India
Abstract :
In this paper, a new design for current comparator based on Current Conveyor-II (CC-II) is proposed. The proposed current comparator utilizes the concept of positive feedback. Simulations have been performed on Pspice using 0.18um CMOS technology with 1.8V supply. Final results confirm a fairly quick response, less power dissipation and a resolution of 4.4uA for the current comparator. A 2-bit current mode flash ADC is designed using the proposed comparator.
Keywords :
CMOS integrated circuits; analogue-digital conversion; current comparators; current conveyors; current-mode circuits; CC-II based current comparator; CMOS technology; Pspice; current 4.4 muA; current conveyor-II; current mode flash ADC; positive feedback; power dissipation; size 0.18 mum; voltage 1.8 V; word length 2 bit; CMOS integrated circuits; Impedance; Mirrors; Power dissipation; Propagation delay; Simulation; Transistors; ADC; Current Comparator; Current conveyor-II (CC-II); Current mode; propagation delay; resolution;
Conference_Titel :
Multimedia, Signal Processing and Communication Technologies (IMPACT), 2013 International Conference on
Conference_Location :
Aligarh
Print_ISBN :
978-1-4799-1202-5
DOI :
10.1109/MSPCT.2013.6782122
