This paper presents a high performance chopper-Stabilized Two-stage operational amplifier for biomedical applications. This Two-stage is designed for low noise, low power, high PSRR and high CMRR. The Miller compensation technique (Cc) is used with a nulling active resistance (Rz) implemented using Transmission gate (TG) transistors for stable operation in feedback mode. Chopper stabilization technique has been widely used in amplifiers for flicker (1/f) noise and offsets reduction purposes using the principles of modulation and demodulation. Thus, the functionality and performance of modulation and demodulation circuits determines the realization and attainment of chopper stabilization. The operational amplifier was manufactured in a SPECTRE using GPDK 90nm CMOS technology with threshold voltages of a 0.17 V and - 0.14 V achieve a low power 2.6uW, 13.5nV /Hz at 10Hz high CMRR up to 130dB and PSRR up to 70dB at 1V power supply.
목차
Abstract 1. Introduction 2. ECG Data Acquisition System 3. ECG Amplifier Design 3.1. Current Mirrors 3.2. Active Resistors 4. Chopper Stabilization Structure 4.1. Modulation and Demodulation Circuit 5. Simulation and Discussion 5.1. Device Parameter 5.2. Frequency Response, Compensation 5.3. Common Mode Rejection Ratio CMRR 5.4. Noise 5.5. Chopper Circuit 6. Conclusion References
Fateh Moulahcene [ Advanced Electronics Laboratory (LEA), University of Batna, Avenue Chahid Boukhlouf, 05000, Batna,Algeria ]
Nour-Eddine Bouguechal [ Advanced Electronics Laboratory (LEA), University of Batna, Avenue Chahid Boukhlouf, 05000, Batna,Algeria ]
Youcef Belhadji [ Unit of research of materials and renevable energies, faculty of science, Abou bekr Belkaid University, PB 119 Tlemcen 13000, Algeria ]
보안공학연구지원센터(IJHIT) [Science & Engineering Research Support Center, Republic of Korea(IJHIT)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Hybrid Information Technology
간기
격월간
pISSN
1738-9968
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Hybrid Information Technology Vol.7 No.6