A 1-V analog CMOS front-end for detecting QRS complexes in a cardiac signal

IEEE Transactions on Circuits and Systems I: Regular Papers

Volumn 52, Issue 12, 2005, Pages 2584-2594

  Lasanen, Kimmo ^a   Kostamovaara, Juha ^a  

^a UNIVERSITY OF OULU   (Finland)

Author keywords

Heart rate detector; Low voltage low power biomedical devices; Switched opamps (SO); Switched capacitor (SC) filters

Indexed keywords

AMPLIFIERS (ELECTRONIC); BANDPASS FILTERS; CRYSTAL OSCILLATORS; ELECTROCARDIOGRAPHY; SIGNAL DETECTION; SIGNAL PROCESSING;

HEART RATE DETECTOR; LOW VOLTAGE LOW POWER BIOMEDICAL DEVICES; SWITCHED CAPACITOR FILTERS;

CMOS INTEGRATED CIRCUITS;

EID: 29344445678     PISSN: 10577122     EISSN: None     Source Type: Journal    
DOI: 10.1109/TCSI.2005.857872     Document Type: Article

References (15)

1. M. J. Burke and D. T Gleeson, "A micropower dry-electrode preamplifier," IEEE Trans. Biomed. Eng., vol. 47, no. 2, pp. 155-162, Feb. 2000.
2. A. Ruha, J. Kostamovaara, and S. Säynäjäkangas, "A micropower analog-digital heart rate detector chip," in Analogue Integrated Circuits and Signal Processing 5. Norwell, MA: Kluwer A, 1994, pp. 147-168.
3. A. P. Chandrakasan, S. Sheng, and R. W. Brodersen, "Low-Power CMOS digital design," IEEE J. Solid-State Circuits, vol. 27, no. 2, pp. 473-484, Apr. 1992.
4. R. Castello and P. R. Gray, "Performance limitations in switched-capacitor filters," IEEE Trans. Circuits Syst., vol. CAS-32, no. 9, pp. 865-876, Sep. 1985.
5. L. Lentola, A. Mozzi, A. Neviani, and A. Baschirotto, "A 1-A front-end for pacemaker atrial sensing channels with early sensing capability," IEEE Trans. Circuits Syst. II, Analog Digit. Signal Process.., vol. 50, no. 8, pp. 397-403, Aug, 2003.
6. A. Gerosa, A. Maniero, and A. Neviani, "A fully integrated two-channel A/D interface for the acquisition of cardiac signals in implantable pacemakers," IEEE J. Solid-State Circuits, vol. 39, no. 7, pp. 1083-1093, Jul. 2004.
7. V. S. L. Cheung and H. C. Luong, "A 0.9 V 0.5 W CMOS single-switched-op-amp signal-conditioning system for pacemaker applications," in Proc. IEEE Int. Solid-State Circuits Conf., vol. 1, San Francisco, CA, Feb. 2003, pp. 408-409.
8. N.V. Thakor, J. G. Webster, and W. J. Tompkins, "Ground-free recording with two electrodes," IEEE Trans. Biomed. Eng., vol. BME-27, no. 12, pp. 699-704, Dec. 1980.
9. N.V. Thakor, J. G. Webster, and W. J. Tompkins, "Estimation of QRS complex power spectra for design of a QRS filter," IEEE Trans. Biomed. Eng., vol. BME-31, no. 11, pp. 702-705, Nov. 1984.
10. J. Crols and M. Steyaert, "Switched-opamp: An approach to realize full CMOS switched-capacitor circuits at very low power supply voltages," IEEE J. Solid-State Circuits, vol. 29, no. 8, pp. 936-942, Aug. 1994.
11. A. Baschirotto, R. Castello, and F. Montecchi, "Design strategy for low-voltage SC-circuits," Electron. Lett., vol. 30, pp. 378-379, Mar. 1994.
12. A. Ruha, J. Kostamovaara, and S. Säynäjäkangas, "Micropower analog structures for a CMOS heart rate indicator," in Proc. 32nd Midwest Symp. Circuits and Systems, vol. 2, Aug. 14-16, 1989, pp. 689-692.
13. V. S. L. Cheung, H. C. Luong, and W.-H. Ki, "A 1-V 10.7-MHz switched-opamp bandpass △Σ modulator using double-sampling finite-gain-compensation technique," IEEE J. Solid-State Circuits. vol. 37, no. 10, pp. 1215-1225, Oct. 2002.
14. E. Vittoz and J. Fellrath, "CMOS analog integrated circuits based on weak inversion operation," IEEE J. Solid-State Circuits, vol. SC- 12, no. 3, pp. 224-231, Jun. 1977.
15. D.G. Haigh and J. T. Taylor, "On switch-induced distortion in switched capacitor circuits," in Proc. IEEE Int. Symp. Circuits and Systems, Helsinki, Finland, Jun. 1988, pp. 1987-1990.