A 9-bit 2 MS/s 1 mW CMOS cyclic folding A/D converter for battery management system

Seongjoo Lee, Minkyu Song

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a 9-bit 2 MS/s CMOS cyclic folding A/D converter (ADC) for a battery management system is described. The scheme of the ADC is based on a cyclic style to reduce chip area and power consumption. To obtain a high speed ADC performance, further, we use a folding-interpolation architecture. The prototype ADC is implemented with a 0.35 μm 2P4M n-well CMOS process. The measured results for INL and DNL are within ±1.5/±1.0 LSB. The ADC demonstrates a maximum SNDR and SFDR of 48 and 60 dB, respectively, and the power consumption is about 1 mW at 3.3 V.

Original languageEnglish
Pages (from-to)15-21
Number of pages7
JournalAnalog Integrated Circuits and Signal Processing
Volume76
Issue number1
DOIs
StatePublished - Jul 2013

Keywords

  • Battery management system (BMS)
  • Cyclic folding A/D converter (ADC)
  • Folding-interpolation architecture

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