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Stefan cel Mare
University of Suceava
Faculty of Electrical Engineering and
Computer Science
13, Universitatii Street
Suceava - 720229

Print ISSN: 1582-7445
Online ISSN: 1844-7600
WorldCat: 643243560
doi: 10.4316/AECE


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  4/2015 - 13

An Electronically Tunable Transconductance Amplifier for Use in Auditory Prostheses

FARAGO, P. See more information about FARAGO, P. on SCOPUS See more information about FARAGO, P. on IEEExplore See more information about FARAGO, P. on Web of Science, FARAGO, C. See more information about  FARAGO, C. on SCOPUS See more information about  FARAGO, C. on SCOPUS See more information about FARAGO, C. on Web of Science, OLTEAN, G. See more information about  OLTEAN, G. on SCOPUS See more information about  OLTEAN, G. on SCOPUS See more information about OLTEAN, G. on Web of Science, HINTEA, S. See more information about HINTEA, S. on SCOPUS See more information about HINTEA, S. on SCOPUS See more information about HINTEA, S. on Web of Science
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Download PDF pdficon (1,464 KB) | Citation | Downloads: 342 | Views: 1,688

Author keywords
analog processing circuits, cochlear implants, low-power electronics, operational transconductance amplifier, programmable circuits

References keywords
cmos(8), circuits(7), amplifier(6), systems(4), signal(4), sarpeshkar(4), processing(4), power(4), farago(4), design(4)
Blue keywords are present in both the references section and the paper title.

About this article
Date of Publication: 2015-11-30
Volume 15, Issue 4, Year 2015, On page(s): 95 - 100
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2015.04013
Web of Science Accession Number: 000368499800012
SCOPUS ID: 84949945758

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Low-voltage and low-power trends in analog electronics enable novel features in modern bio-medical devices, such as extensive portability, autonomy and even battery-less operation. One specific example is the cochlear implant (CI), which emulates the physiology of hearing to produce auditory sensations via neural stimulation. Besides low-voltage and low-power operation, a key feature in modern CIs is wide-range programmability of the speech processing parameters. This paper proposes an operational transconductance amplifier (OTA) for use in CIs, with wide-range electronic tuning of the transconductance value. The proposed OTA is developed around a cascade of two transconductor stages, making the transconductance dependent on the bias current ratio. A combination of linearization techniques: bulk input, parallel differential pairs and feedback, is used to achieve sufficient linear range for CI speech processing. Wide-range parameter tuning of the speech processing sections is illustrated on a variable gain amplifier, a bandpass Tow-Thomas biquad and an envelope detector. Finally, the complete CI speech processing chain is illustrated. The proposed OTA and its employment in CI analog speech processing are validated on a 350 nm CMOS process.

References | Cited By  «-- Click to see who has cited this paper

[1] L. Magnelli, F. A. Amoroso, F. Crupi, G. Cappuccino, G. Iannaccone, "Design of a 75-nW, 0.5-V subthreshold complementary metal-oxide-semiconductor operational amplifier", International Journal of Circuit Theory and Applications, vol. 42, no. 9, pp. 967-977, Sept. 2014.
[CrossRef] [Web of Science Times Cited 28] [SCOPUS Times Cited 47]

[2] R. Sarpeshkar, Ultra Low Power Bioelectronics: Fundamentals, Biomedical Applications, and Bio-Inspired Systems. Cambridge University Press, 2010.
[CrossRef] [SCOPUS Times Cited 173]

[3] P. C. Loizou, "Mimicking the Human Ear," IEEE Signal Processing Magazine. vol. 15(5), pp. 101-130, Sept. 1998.
[CrossRef] [Web of Science Times Cited 193] [SCOPUS Times Cited 232]

[4] R. Groza and M. Cirlugea, "Current-mode log-domain programmable gain amplifier," in 2014 IEEE International Conference on Automation Quality and Testing Robotics (AQTR), 2014, pp. 75-78.
[CrossRef] [SCOPUS Times Cited 4]

[5] S. Hintea, P. Farago, L. Festila, P. Soser, "Reconfigurable Filter Design for Implantable Auditory Prosthesis", Electronics and Electrical Engineering, vol. 99, no.3, pp.7-12, 2010.

[6] S. Hintea, P. Farago, M. N. Roman, G. Oltean, L. Festila, "A Programmable Gain Amplifier for Automated Gain Control in Auditory Prostheses", J. Med. Biol. Eng., vol. 31. no 3, pp 185-192, 2011.
[CrossRef] [Web of Science Times Cited 7] [SCOPUS Times Cited 9]

[7] Baker W, Sarpeshkar R, "Low-power single-loop and dual-loop AGCs for bionic ears", IEEE J. Solid-St. Circ., vol. 41, no. 9, 2006, pp. 1983-1996.
[CrossRef] [Web of Science Times Cited 21] [SCOPUS Times Cited 38]

[8] J. Silva-Martinez, S. Solis-Bustos, J. Salcedo-Suner, R. Rojas-Hernandez, M. Schellenberg, "A CMOS Hearing Aid Device", Analog Integrated Circuits and Signal Processing, Vol. 21, No. 2, pp 163-172, 1999.
[CrossRef] [Web of Science Times Cited 10] [SCOPUS Times Cited 20]

[9] P. Farago, C. Farago, S. Hintea, M. Cirlugea, "An Evolutionary Multi-objective Optimization Approach to Design the Sound Processor of a Hearing Aid," in Proc. IFMBE Proceedings, vol. 44, pp 181-186, 2014.
[CrossRef] [SCOPUS Times Cited 4]

[10] R. Sarpeshkar, R. F. Lyon, C. Mead, "A Low-Power Wide-Linear-Range Transconductance Amplifier," Analog Integrated Circuits and Signal Processing, vol. 13, No. 1-2, pp 123-151, May/June 1997.
[CrossRef] [Web of Science Times Cited 87]

[11] Barrie Gilbert, "The Multi-tanh Principle: A Tutorial Overview", IEEE Journal of Solid-State Circuits, vol. 33, no. 1, pp. 2-17, 1998.
[CrossRef] [Web of Science Times Cited 126] [SCOPUS Times Cited 173]

[12] P. M. Furth, A.G. Andreou, "Linearised differential transconductors in subthreshold CMOS", Electronics Letters, vol. 31, no. 7, pp. 545 - 547, 1995.
[CrossRef] [Web of Science Times Cited 44] [SCOPUS Times Cited 53]

[13] A. Veeravalli, E. Sánchez-Sinencio, J. Silva-Martínez, "A CMOS transconductance amplifier architecture with wide tuning range for very low frequency applications", IEEE Journal of Solid-State Circuits, vol. 37, no.6, pp. 776 - 781, 2002.
[CrossRef] [Web of Science Times Cited 54] [SCOPUS Times Cited 64]

[14] R. G. Bozomitu, V. Cehan, V. Popa, "A New Linearization Technique Using "Multi-sinh" Doublet", Advances in Electrical and Computer Engineering, vol. 9, no. 2, pp. 45-57, 2009.
[CrossRef] [Full Text] [Web of Science Times Cited 6] [SCOPUS Times Cited 6]

[15] P. M. Furth, On the Design of Optimal Continuous-Time Filter Banks in Subthreshold CMOS, PhD dissertation, Baltimore, Maryland, 1996

[16] S. Dwivedi, A. K. Gogoi, "A 0.8 V CMOS OTA and Its Application in Realizing a Neural Recording Amplifier", Journal of Medical and Bioengineering, vol. 4, no. 3, pp. 227-234, 2015.

[17] C.-C. Hung, I. Halonen, M. Ismail, V. Porra, "Micropower CMOS Gm-C Filters for Speech Signal Processing," IEEE International Symposium on Circuits and Systems, Hong Kong, 1997, pp. 1972-1975.

[18] R. Torrance, T. Viswanathan, J. Hanson, "CMOS voltage to current transducers", IEEE Transactions on Circuits and Systems, vol. 32, no. 11, pp. 1097-1104, 1985.
[CrossRef] [Web of Science Times Cited 103]

[19] R. Sarpeshkar, C. Salthouse, S. Ji-Jon, M. W. Baker, S. M. Zhak, T. K.-T. Lu, L. Turicchia, S. Balster, "An ultra-low-power programmable analog bionic ear processor", IEEE Transactions on Biomedical Engineering, vol. 52, no. 4, pp. 711 - 727, 2005.
[CrossRef] [Web of Science Times Cited 91] [SCOPUS Times Cited 105]

[20] S. Jun, S. J. Ahn, "CMOS precision half-wave rectifying transconductor," in Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, vol. 3, Monterey, 1198, pp. 659 - 662, 1998.

[21] P. Loizou, M. Dorman, Z. Tu, "On the number of channels needed to understand speech," Journal of Acoustical Society of America. Vol. 106(4), pp. 2097-2103, 1999.
[CrossRef] [Web of Science Times Cited 124] [SCOPUS Times Cited 141]

References Weight

Web of Science® Citations for all references: 894 TCR
SCOPUS® Citations for all references: 1,069 TCR

Web of Science® Average Citations per reference: 41 ACR
SCOPUS® Average Citations per reference: 49 ACR

TCR = Total Citations for References / ACR = Average Citations per Reference

We introduced in 2010 - for the first time in scientific publishing, the term "References Weight", as a quantitative indication of the quality ... Read more

Citations for references updated on 2019-06-18 13:14 in 176 seconds.

Note1: Web of Science® is a registered trademark of Clarivate Analytics.
Note2: SCOPUS® is a registered trademark of Elsevier B.V.
Disclaimer: All queries to the respective databases were made by using the DOI record of every reference (where available). Due to technical problems beyond our control, the information is not always accurate. Please use the CrossRef link to visit the respective publisher site.

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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania

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