Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지
DOI QR코드

DOI QR Code

LNA with Chopper Stabilization Technique Using Sample and Hold Circuit

샘플 홀드 회로를 이용한 초퍼 안정화 기법이 적용된 저잡음 증폭기

  • Park, Youngmin (College of Electrical and Computer Engineering, Chungbuk National University) ;
  • Nam, Minho (College of Electrical and Computer Engineering, Chungbuk National University) ;
  • Cho, Kyoungrok (College of Electrical and Computer Engineering, Chungbuk National University)
  • 박영민 (충북대학교대학교 전자정보대학) ;
  • 남민호 (충북대학교대학교 전자정보대학) ;
  • 조경록 (충북대학교대학교 전자정보대학)
  • Received : 2016.02.04
  • Accepted : 2016.09.28
  • Published : 2016.10.25
Download PDF
⟨ Previous Next ⟩

Abstract

This paper proposes a Low Noise Amplifier (LNA) with chopper stabilization technique with a sample-hold circuit. Chopper stabilization technique is effective in terms of reducing low frequency offset and flicker noise. Conventional chopper amplifier has a disadvantage in area because of using Low Pass Filter (LPF) for remove chopping spike. The proposed chopper amplifier employed sample and hold technique to decrease chopping spike instead of LPF that improves 36% in voltage damping and 11% in area.

본 논문은 초퍼 안정화기법을 적용한 저잡음 증폭기를 제안한다. 초퍼 안정화기법은 CMOS 증폭기의 저주파수 대역 오프셋과 플리커 잡음을 감소시키는 효과적인 기법이다. 기존의 초퍼 증폭기는 초퍼로 인해 발생되는 초핑 스파이크를 제거하기 위해 Low Pass Filter(LPF)를 사용하기 때문에 저항과 커패시터가 큰 면적을 차지한다는 단점을 가지고 있다. 제안된 초퍼 증폭기는 LPF 대신 샘플 앤 홀드 방식의 초핑 스파이크 제거 회로를 사용하여 적은 전압감쇄에서 36%, 면적에서 11%의 이득을 얻을 수 있다.

Keywords

References

  1. Hosung Lee, Sungyoung Lee, "Real-time Activity and Posture Recognition with Combined Acceleration Sensor Data from Smartphone and Wearable Device", Journal of KISS : Software and Applications 41(8), pp. 586-597, Aug. 2014.
  2. Chang Hyun Kim, Jong-Moon Chung, "Design of a 6-Axis Inertial Sensor IC for Accurate Location and Position Recognition of M2M/IoT Devices", The Journal of The Korean Institute of Communication Sciences 39(1), pp. 82-89, Jan, 2014.
  3. H. Sun, K. Jia, X. Liu, G. Yan, Y. Hsu, R. M. Fox, and H. Xie, "A CMOS-MEMS gyroscope interface circuit design with high gain and low temperature dependence," IEEE Sensors J., vol. 11, no. 11, pp. 2740-2748, Nov. 2011. https://doi.org/10.1109/JSEN.2011.2158819
  4. Jun-Gyu Lee, JinWook Burm, Shin-Il Lim, "A Design of Instrumentation Amplifier using Offset Cancellation Techniques", THE INSTITUTE OF ELECTRONICS ENGINEERS OF KOREA, pp. 534-535, Nov. 2007.
  5. Haiyang Cheng, Ming Qin, Donghui Gao, Qing-An Huang, "A low noise CMOS instrumentation amplifier for integrated thermal gas flow sensor", Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on (Volume:3), 1831-1834 vol.3, Oct. 2004.
  6. K.A.A Makinwa and J.H. Huijsing, "A wind sensor with an integrated low-offset instrumentation amplifier", Electronics, Circuits and Systems, 200I.ICECS 2001. The 8th IEEE International Conference, vol.3, pp.1505-1508, 200I.
  7. Xiao Yang, Qi Cheng, Li-fei Lin, Wei-wei Huang, "Design of low power low noise amplifier for portable electrocardiogram recording system applications", Anti-Counterfeiting, Security and Identification (ASID), 2011 IEEE International Conference on, pp.89-92, June 2011.
  8. CHRISTIAN C.ENZ, GABORC. TEMES, "Circuit Techniques for Reducing the Effects of Op-Amp Imperfections: Autozeroing, Correlated Double sampling, and Chopper Stabilization" Proceedings of the IEEE, pp. 1584-1614 Nov 1996.
  9. J. H. Nielsen, and E. Bruun, "A CMOS lownoise instrumentation amplifier using chopper modulation," Analog Integrated Circuit and Signal Processing, vol. 42, pp. 65-76, 2005. https://doi.org/10.1023/B:ALOG.0000042329.18883.8a