Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2004.06b
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- Pages.537-540
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- 2004
Design of the 1.8V 6-bit 2GSPS CMOS ADC for the DVD PRML
DVD PRML을 위한 1.8V 6-bit 2GSPS CMOS ADC 설계
- Park Yu-Jin (System IC Design Lab., Semiconductor Science, Dongguk University) ;
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Song Min-kyu
(System IC Design Lab., Semiconductor Science, Dongguk University)
- Published : 2004.06.01
Abstract
In this paper, CMOS A/D converter with 6bit 2GSPS Nyquist input at 1.8V is designed. In order to obtain the resolution of 6bit and the character of high-speed operation. we present an Interpolation type architecture. In order to overcome the problems of high speed operation further a novel encoder, a circuit for the Reference Fluctuation, an Averaging Resistor and a Track & Hold for the improved SNR are proposed. The proposed Interpolation ADC consists of Track & Holt four resistive ladders with 64 taps, 32 comparators and digital blocks. The proposed ADC is based on 0.18um 1-poly 3-metal N-well CMOS technology, and it consumes 145mW at 1.8V power supply.
Keywords