Low power delay proficient current mode ADC design

Author

Bhatia, Vandana ; Goel, Mayank ; Gupta, Swastik ; Iswerya, P. ; Pandey, Narendra ; Bhattacharyya, A.

Author_Institution

Dept. of Electron. & Commun., Indira Gandhi Inst. of Technol., Delhi, India

fYear

2012

fDate

17-19 Dec. 2012

Firstpage

1

Lastpage

4

Abstract

Analog to Digital Converters (ADC) are one of the popular blocks in the area of mixed signal devices. This paper presents a circuit for 2-bit current-mode Flash ADC with very low propagation delay. The ADC employs high speed current comparator. Further, a high speed thermometer to binary CMOS pass gate encoder is implemented that exhibits an average delay of 0.25ns. The design which explicates 2-bit conversion can be expanded up to n-bits. The results assert the fact that there are no bubbles in the output. 0.18μm CMOS technology with 1.8V power supply voltage is used.

Keywords

analogue-digital conversion; comparators (circuits); current-mode circuits; thermometers; analog to digital converter; binary CMOS pass gate encoder; current comparator; current mode ADC design; current-mode flash ADC; mixed signal device; size 0.18 mum; thermometer; voltage 1.8 V; word length 2 bit; ADC; Current mode circuits; Propagation delay; Thermometer code;

fLanguage

English

Publisher

ieee

Conference_Titel

Power, Control and Embedded Systems (ICPCES), 2012 2nd International Conference on

Conference_Location

Allahabad

Print_ISBN

978-1-4673-1047-5

Type

conf

DOI

10.1109/ICPCES.2012.6508082

Filename

6508082