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General Information
Editor-in-chief
Prof. T. Hikmet Karakoc
Anadolu University, Faculty of Aeronautics and Astronautics, Turkey

IJET 2012 Vol.4(4): 369-371 ISSN: 1793-8236
DOI: 10.7763/IJET.2012.V4.386

A 6-bit 2GS/s Low Power Flash ADC

Jyun-Syong Lai and Zhi-Ming Lin
Abstract—In this paper a 6-bit Flash Analog-to-Digital converter (ADC) implemented in TSMC 0.18-μm CMOS process is presented. Different from the conventional Flash ADCs, the architecture of the proposed ADC is based on single-ended comparators with a sample-and-hold (S/H) circuit. Single-ended comparators are formed using only inverters and resistors. Therefore, our design can reduce a lot of transistor numbers and power consumption. The designed ADC consumes 0.425 mW at 1.5V power supply. The speed of this design is 2 GS/s. The simulated static differential non-linearity error (DNL) and integral non-linearity error (INL) are between 0.4/-0.29 LSB and 0.4/-0.39 LSB, respectively.

Index Terms—Analog-to-digital converter, comparator, flash, inverter.

Jyun-Syong Lai is with the Graduate Program of Integrated Circuit Design of Computer Science and Information Engineering, National Changhua University of Education.
Zhi-Ming Lin is with the Department of Computer Science and Information Engineering, National Changhua University of Education (e-mail: zmlin@cc.ncue.edu.tw)

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Cite: Jyun-Syong Lai and Zhi-Ming Lin, "A 6-bit 2GS/s Low Power Flash ADC," International Journal of Engineering and Technology vol. 4, no. 4, pp. 369-371, 2012.
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