A true-l-V 300-μW CMOS-subthreshold log-domain hearing-aid-on-chip

IEEE Journal of Solid-State Circuits

Volumn 39, Issue 8, 2004, Pages 1271-1281

  Serra Graells, Francisco ^a   Gómez, Lluís ^b   Huertas, José Luis ^c  

^a INSTITUTO DE MICROELECTRÓNICA DE BARCELONA   (Spain)

^b Microson SA   (Spain)

^c INSTITUTO DE MICROELECTRÓNICA DE SEVILLA   (Spain)

Author keywords

CMOS; CMOS analog integrated circuits; Companding; Hearing aid; Log domain; Low voltage; Low power electronics; Subthreshold

Indexed keywords

AMPLIFICATION; ANALOG TO DIGITAL CONVERSION; CHIP SCALE PACKAGES; COMPANDOR CIRCUITS; ELECTRIC CURRENTS; ELECTRIC FILTERS; GAIN CONTROL; HEARING AIDS; POWER ELECTRONICS; PULSE TIME MODULATION; VOLTAGE CONTROL;

CMOS ANALOG INTEGRATED CIRCUITS; COMAPANDING; LOW VOLTAGE (LV); LOW-POWER ELECTRONICS; SUBTHRESHOLD;

CMOS INTEGRATED CIRCUITS;

EID: 3843061235     PISSN: 00189200     EISSN: None     Source Type: Journal    
DOI: 10.1109/JSSC.2004.831469     Document Type: Article

References (21)

1. A. C. van der Woerd, "Analog circuits for a single-chip infrared controlled hearing aid," J. Analog Integrated Circuits Signal Processing, vol. 3, pp. 91-103, 1993.
2. P. Favrat, P. Deval, and M. J. Declercq, "An improved voltage doubler in a standard CMOS technology," in Proc. IEE Int. Symp. Circuits and Systems, vol. 1, 1997, pp. 249-252.
3. F. Callias, F. H. Salchli, and D. Girard, "A set of four IC's in CMOS technology for a programmable hearing aids," IEEE J. Solid-State Circuits, vol. 24, pp. 301-312, Apr. 1989.
4. D. Wayne, M. Rives, T. Huynh, D. Preves, and J. Newton, "A single-chip hearing aid with one volt switched-capacitor filters," in Proc. IEEE Custom Integrated Circuits Conf., 1992, pp. 7.5.1-7.5.4.
5. A. H. Reyes, E. Sánchez-Sinencio, and J. Duque-Carrillo, "A wireless volume control receiver for hearing aids," IEEE Trans. Circuits Syst. II, vol. 20, pp. 16-23, Jan. 1995.
6. A. B. Bhattacharyya, R. S. Rana, S. K. Guha, R. Bahl, S. Anand, M. J. Zarabi, P. A. Govindacharyulu, V. Gupta, V. Mohan, J. Roy, and A. Atri, "A micropower analog hearing aid on low-voltage CMOS digital process," in Proc. 9th Int. Conf. VLSI Design, Jan. 1996, pp. 85-89.
7. G. Torelli, E. Chioffi, and F. Maloberti, "A CMOS micropower input amplifier for hearing aids," Microelectron. J., vol. 27, pp. 477-484, 1996.
8. J. F. Duque-Carrillo, P. Malcovati, F. Maloberti, R. Pérez-Aloe, A. H. Reyes, E. Sánchez-Sinencio, G. Torelli, and J. M. Valverde, "VERDI: An acoustically programable and adjustable CMOS mixed-mode signal processor for hearing aids applications," IEEE J. Solid-State Circuits, vol. 31, pp. 634-645, May 1996.
9. J. Silva-Martínez and J. Salcedo-Sufier, "A CMOS automatic gain control for hearing aid devices," in Proc. Int. Symp. Circuits and Systems, vol. I, 1998, pp. 297-300.
10. J. Silva-Martínez, S. Solís-Bustos, J. Salcedo-Sufier, R. Rojas-Hernández, and M. Schellenberg, "A CMOS hearing aid device," J. Analog Integrated Circuits and Signal Processing, vol. 21, pp. 163-172, 1999.
11. L. Pylarinos, N. W. Wong, and K. Phang, "A low-voltage CMOS filter for hearing aids using dynamic gate biasing," in Proc. Can. Conf. Electrical and Computer Engineering, vol. 1, 2001, pp. 183-188.
12. H. Neuteboom, M. A. E. Janssens, J. R. G. M. Leenen, B. M. J. Kup, E. C. Dijkmans, B. de Koning, V. A. J. Frowijn, R. D. N. De Bleecker, E. J. Van der Zwan, S. M. M. Note, Z. Wu, and S. R. Masschelein, "A single-battery, 0.9 V-operated digital sound processing IC inlcuding AD/DA and IR receiver with 2 mW power consumption," in IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers, 1997, pp. 98-99.
13. R. Klootsema, O. Nys, E. Vandel, D. Aebischer, P. Vaucher, O. Haulier, P. Bratschi, and F. Bauduin, "Battery supplied low power analog-digital front-end for audio applications," in Proc. Eur. Solid-State Circuits Conf., 2000.
14. D. G. Gata, W. Sjursen, J. R. Hochschild, J. W. Fattaruso, L. Fang, G. R. Iannelli, Z. Jiang, C. M. Branch, J. A. Holmes, M. L. Skorcz, E. M. Petilli, S. Chen, G. Wakeman, D. A. Preves, and W. A. Severin, "A 1.1-V 270-μA mixed-signal hearing aid chip," IEEE J. Solid-State Circuits, vol. 37, pp. 1670-1678, Dec. 2002.
15. F. Serra-Graells, L. Gómez, and O. Farrés, "A true 1 V CMOS log-domain analog hearing-aid-on-a-chip," in Proc. Eur. Solid-State Circuits Conf., 2001, pp. 420-423.
16. F. Floru, "Attack and release time constants in RMS-based feedback compressors," J. Audio Eng. Soc., vol. 47, no. 10, pp. 788-804, Oct. 1999.
17. Y. Tsividis, "Externally linear, time-invariant systems and their application to companding signal processors," IEEE Trans. Circuits Syst. II, vol. 44, pp. 65-85, Feb. 1997.
18. R. W. Adams, "Filtering in the log-domain," in Proc. 63rd AES Conf., May 1979, pp. 1470-1476.
19. C. C. Enz, F. Krummenacher, and E. A. Vittoz, "An analytical MOS transistor model valid in all regions of operation and dedicated to low-voltage and low-current applications," J. Analog Integrated Circuits Signal Processing, vol. 8, no. 1, pp. 83-114, 1995.
20. "Hearing Aids With Automatic Gain Control Circuits," International Electrotechnical Commission (IEC), Tech. Rep. 118-2, 1983.
21. F. Serra-Graells, "VLSI CMOS low-voltage log companding filters," in Proc. Int. Symp. Circuits Systems, vol. I, May 2000, pp. 172-175.