Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)

The Acoustical Society of Korea (한국음향학회)
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8-bit 10-MHz A/D Converter for Video Signal Processing

영상 신호 처리용 8-bit 10-MHz A/D 변환기

  • Park Chang-Sun (Faculty of Electronic and Information Engineering, Chonbuk National University) ;
  • Son Ju-Ho (Faculty of Electronic and Information Engineering, Chonbuk National University) ;
  • Lee Jun-Ho (Faculty of Electronic and Information Engineering, Chonbuk National University) ;
  • Kim Chong-Min (Faculty of Electronic and Information Engineering, Chonbuk National University) ;
  • Kim Dong-Yong (Faculty of Electronic and Information Engineering, Chonbuk National University)
  • 박창선 (전북대학교 전자정보공학부) ;
  • 손주호 (전북대학교 전자정보공학부) ;
  • 이준호 (전북대학교 전자정보공학부) ;
  • 김종민 (전북대학교 전자정보공학부) ;
  • 김동용 (전북대학교 전자정보공학부)
  • Published : 1999.11.06
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Abstract

In this work, a A/D converter is implemented to obtain 8bit resolution at a conversion rate of 10Msample/s for video applications. Proposed architecture is designed low power A/D converter that pipelined architecture consists of flash A/D converter. This architecture consists of two identical stages that consist of sample/hold circuit, low power comparator, voltage reference circuit and MDAC of binary weighted capacitor array. Proposed A/D converter is designed using $0.25{\mu}m$ CMOS technology The SNR is 76.3dB at a sampling rate of 10MHz with 3.9MHz sine input signal. When an 8bit 10Msample/s A/D converter is simulated, the Differential Nonlinearity / Integral Nonlinearity (DNL/ INL) error are ${\pm}0.5/{\pm}2$ LSB, respectively. The power consumption is 13mW at 10Msample/s.

Keywords