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- W2052222012 abstract "본 논문에서는 모바일 기기의 배터리 전력관리 IC(Battery Management IC)에서 전압 및 온도를 측정하여 디지털 신호로 바꾸어 주는데 필요한 시그마-델타 모듈레이터를 설계하였다. 제안하는 이산-시간 시그마-델타 모듈레이터는 2차의 단일 비트 구조이고 0.13um CMOS 공정으로 제작되었다. 모듈레이터의 소모전류를 줄이기 위하여 switched-opamp 방식을 적용하여 설계하였다. 제안하는 모듈레이터는 오버 샘플링 비율이 256 일 때 256kHz의 클락 주파수에서 83-dB의 dynamic range와 81.7dB의 peak signal-to-(noise + distortion) ratio(SNDR)를 가진다. 3.3 V의 전원전압에서 0.66 mW의 전력을 소모하며 모듈레이터 코어의 면적은 <TEX>$0.425mm^2$</TEX> 이다. This paper presents design of the second-order sigma-delta modulator for converting voltage and temperature signals to digital ones in Battery Management IC (BMIC) for mobile applications. The second-order single-loop switched-capacitor sigma-delta modulator with 1-bit quantization in 0.13-um CMOS technology is proposed. The proposed modulator is designed using switched-opamp technique for saving power consumption. With an oversampling ratio of 256 and clock frequency of 256kHz, the modulator achieves a measured 83-dB dynamic range and a peak signal-to-(noise+distortion) ratio (SNDR) of 81.7dB. Power dissipation is about 0.66 mW at 3.3 V power supply and the occupied core area is <TEX>$0.425mm^2$</TEX>." @default.
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- W2052222012 date "2014-06-30" @default.
- W2052222012 modified "2023-09-24" @default.
- W2052222012 title "Second-order Sigma-Delta Modulator for Mobile BMIC Applications" @default.
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- W2052222012 doi "https://doi.org/10.7471/ikeee.2014.18.2.263" @default.
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