Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A 110dB, 3-mW Fourth-order ${\Sigma}-{\Delta}$ Modulator for high accuracy measure systems

110dB, 3-mW 4차 단일비트 시그마 델타 모듈레이터

  • Kim, Tae-Yoon (SoC Research Center Korea Electronics Technology Institute) ;
  • Park, Won-Ki (SoC Research Center Korea Electronics Technology Institute) ;
  • Min, Kyong-Won (SoC Research Center Korea Electronics Technology Institute) ;
  • Choi, Jong-Chan (SoC Research Center Korea Electronics Technology Institute) ;
  • Lee, Sung-Chul (SoC Research Center Korea Electronics Technology Institute)
  • Published : 2008.06.18
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Abstract

In this paper, a 110 dB, 1.024 MHz fourth-order single-loop Delta-Sigma sigma modulator has been presented with an over-sampling ratio of 128 and an overload factor of -6 dB for a bandwidth of 4 kHz. In particular, this ${\Sigma}-{\Delta}$ modulator is well suited for high accuracy measure systems. The whole modulator consumes only 3-mW from a single 3.3V supply in a $0.35-{\mu}m$ CMOS technology.

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