Modeling of Pipeline A/D converter with Verilog-A

Verilog-A를 이용한 파이프라인 A/D변환기의 모델링

  • 박상욱 (삼성전자 시스템 LSI 사업부) ;
  • 이재용 (인하대학교 전자공학과) ;
  • 윤광섭 (인하대학교 전자공학과)
  • Published : 2007.10.31

Abstract

In this paper, the 10bit 20MHz pipelined analog-to-digital converter that is able to apply to WLAN system was modeled for ADC design. Each blocks in converter such as sample and hold amplifier(SHA), comparator, multiplyng DAC(MDAC), and digital correction logic(DCL) was modeled. The pipelined ADC with these modeled blocks takes 1/50 less time than the one of simulation using HSPICE.

본 논문에서는 무선 랜 시스템용 10비트 20MHz 파이프라인 아날로그-디지털 변환기 설계를 위해서 Verilog-A 언어를 사용하여서 모델링하였다. 변환기내 샘플 / 홀드 증폭기, 비교기, MDAC 및 오차 보정 회로 등의 구성회로들을 각각 모델링해서 모의실험 한 결과 HSPICE를 이용한 모의 실험 시간보다 1/50배로 단축되어서 시스템 모델링에 적합함을 확인하였다.

Keywords

References

  1. DAN FITZPATRICK and IRA MILLER, 'Analog Behavioral Modeling with the Verilog-A Language', Kluwer Academic Publishers, 1998
  2. A. Brian and A. Antao, 'Behavioral Simulation for Analog System Design Verification,' IEEE transactions on very large scale integration (VLSI) systems, vol. 3, no. 3, pp. 56-59, Sep. 1995
  3. L. Edward and S. V. Albert, 'Verification of Nyquist Data Converters Using Behavioral Simulation,' IEEE transactions on computer- aided design of integrated circuits and systems, vol. 14, no. 4, Apr. pp. 493-502, 1995 https://doi.org/10.1109/43.372375
  4. Lewis, S.H. and Gray, P.R., 'A pipeline 5Msample/s 9bit analog-to-digital converter,' IEEE JSSC, vol. SC-22, pp.954-61, Dec 1987
  5. C. R. Grace, P. J. Hurst and Stephen H. Lewis, 'A 12-bit 80-MSample/s Pipelined ADC With Bootstrapped Digital Calibration,' IEEE J. Solid-State Circuits, vol. 40, no. 5, May, pp. 1038-1046, 2005 https://doi.org/10.1109/JSSC.2005.845972
  6. B. Song, S. Lee and M. F. Tompsett, 'A 10-b 15-MHz CMOS Recycling Two-Step A/D Converter,' IEEE J. Solid-State Circuits, vol. 25, no. 6, pp. 1328-1338, Dec. 1990 https://doi.org/10.1109/4.62176
  7. B. Min, Y. Cho, H. Chae, H. Park and S. Lee, 'A 10b 100MS/s 1.4mm2 56mW 0.18um CMOS A/D Converter with 3-D Fully Symmetrical Capacitors,' IEICE Trans. on Electronics, vol. E89-C, no. 5, pp. 630-635, May 2006 https://doi.org/10.1093/ietele/e89-c.5.630