Design of tunable differential transconductance-capacitance low pass filter

This project presents the design of a tunable differential transconductancecapacitance (gm-C) low pass filter for hearing aid application. Low power consumption and transconductor with very low transconductance are the main focus and challenges in this project. Several low transconductance OTA and l...

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Main Author:	Wong, Kam Yee
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/12061/6/WongKamYeeMFKE2009.pdf
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id	my-utm-ep.12061
record_format	uketd_dc
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Wong, Kam Yee Design of tunable differential transconductance-capacitance low pass filter
description	This project presents the design of a tunable differential transconductancecapacitance (gm-C) low pass filter for hearing aid application. Low power consumption and transconductor with very low transconductance are the main focus and challenges in this project. Several low transconductance OTA and low power design techniques published are discussed and compared. A differential 3rd order gm- C low pass filter is designed and characterized at typical process corners and compared with cross skew corners down to layout level design base on TSMC 0.25µm process technology. The active silicon area is estimated to be ~8mm2 working at 1.35V with a typical hearing aid 1.4V Zinc-air battery. The filter designed dissipates ~12µW and the -3 dB cut-off frequency is 10.5 KHz with -20 dB attenuation at around 22 KHz. Simulation results are shown and are in good agreement with the theoretical results. Tanner Tools S-edit and L-edit are used in this project for schematics and layout design and simulated using Tanner T-Spice simulator.
format	Thesis
qualification_level	Master's degree
author	Wong, Kam Yee
author_facet	Wong, Kam Yee
author_sort	Wong, Kam Yee
title	Design of tunable differential transconductance-capacitance low pass filter
title_short	Design of tunable differential transconductance-capacitance low pass filter
title_full	Design of tunable differential transconductance-capacitance low pass filter
title_fullStr	Design of tunable differential transconductance-capacitance low pass filter
title_full_unstemmed	Design of tunable differential transconductance-capacitance low pass filter
title_sort	design of tunable differential transconductance-capacitance low pass filter
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/12061/6/WongKamYeeMFKE2009.pdf
_version_	1747814891507417088
spelling	my-utm-ep.120612017-09-20T03:46:14Z Design of tunable differential transconductance-capacitance low pass filter 2009-11 Wong, Kam Yee TK Electrical engineering. Electronics Nuclear engineering This project presents the design of a tunable differential transconductancecapacitance (gm-C) low pass filter for hearing aid application. Low power consumption and transconductor with very low transconductance are the main focus and challenges in this project. Several low transconductance OTA and low power design techniques published are discussed and compared. A differential 3rd order gm- C low pass filter is designed and characterized at typical process corners and compared with cross skew corners down to layout level design base on TSMC 0.25µm process technology. The active silicon area is estimated to be ~8mm2 working at 1.35V with a typical hearing aid 1.4V Zinc-air battery. The filter designed dissipates ~12µW and the -3 dB cut-off frequency is 10.5 KHz with -20 dB attenuation at around 22 KHz. Simulation results are shown and are in good agreement with the theoretical results. Tanner Tools S-edit and L-edit are used in this project for schematics and layout design and simulated using Tanner T-Spice simulator. 2009-11 Thesis http://eprints.utm.my/id/eprint/12061/ http://eprints.utm.my/id/eprint/12061/6/WongKamYeeMFKE2009.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering 1. Oticon (2009). Oticon Product Information. [Data Sheet], from http://www.oticon.com/com/OurProducts/ConsumerProducts/OtherHearingA ids/Syncro/Downloads/91055810syn2_ds.pdf 2. Annema, A,-J. Analog circuit performance and process scaling. IEEE JNL June 1999 page(s): 711-725 3. Francisco Serra-Graells, Lluis Gomez and Oscar Farres. A True Log-Domain Analog Hearing-Aid-on-a-Chip. ESSCIRC 2001 Page 405-408 4. R. Schaumann and Van Valkenburg Mac E (2001). Design of Analog Filters. Oxford University Press 5. C. Toumazou et al. (2002). Trade-Offs in Analog Circuit Design: The Designer’s Companion. Kluwer Academic Publisher 6. Theerachet Soorapanth. (2002). CMOS Filtering At GHz Frequency. PhD Diss., Stanford University. 7. Bram Naita. (1993). Analog CMOS Filter for Very High Frequency. Kluwer Academic Publishers. 8. Veeravalli. A, Sanchez-Sinencio. E, Silva-Martinez. J. Transconductance amplifier with very small transconductances: a comparative design approach. Solid-State Circuits, IEEE Journal 2002 page 770-775 9. Vinay Agarwal. A PVT independent Subthreshold Constant-Gm stage for Very Low Frequency Applications. ISCAS 2008 IEEE International Symposium page 1445-1448 10. Chun-Lung Hsu, Mean-Hom Ho, Yu-Kuan Wu and Ting-Hsuan Chen. Design of Low-Frequency Low Pass Filters for Biomedical Applications. IEEE APCCAS 2006 11. Jun-Hong Weng, Ching-Yuan Yang. An Active Gm-C Filter Using a Linear Transconductance. EDSSC 2007 IEEE Conference page 909-912 12. Sanchez-Rodriguez, T.; Lujan-Martinez, C.I.; Carvajal, R.G.; Ramirez- Angulo, J.; Lopez-Martin. CMOS Linear Programmable Transconductor Suitable for Adjustable Gm-C Filters. Electronics Letters, Volume 44, April 2008 page 505-506 13. A. I. A. Cunha, O. C. Gouveia-Filho, M. C. Schneider, and C. Galup- Montoro. A current-based model for the MOS transistor. ISCAS vol. 3, 1997, pp. 1608–1611. 14. Chung-Chih Hung, Kari Halonen, Mohammed Ismail, and Veikko Porra. Micropower CMOS GM-C Filters For Speech Signal Processing. 1997 IEEE International Symposium on Circuits and Systems, June 9-12, 1997, Hong Kong 15. Tanaka, T.; Sungwoo Cha; Shimizu, S.; Ida, T.; Ishihara, H.; Matsuoka, T.; Taniguchi, K.; Sugimori, A.; Hihara, H. A Widely Tunable Gm-C Filter Using Tail Current Offset in Two Differential Pairs. ISCAS 2005, IEEE Internaltional Symposium, page 812-815 16. Mohamed M. Elsayed, Mohammed M. Abdul-Latif and Edgar Sánchez- Sinencio. (2002) Tunable Fully Differential Floating Capacitor Multiplier for Fully Differential Very Low Frequency Filters. 17. Dualibe, C.; Petrashin, P.; Toledo, L.; Lancioni, W. New Low-Voltage Electrically Tunable Triode-MOSFET Transconductor and its Application to Low-Frequency Gm-C Filtering. Integrated Circuits and Systems Design, 2005 page 207-212 18. T. Deliyannis, Yichuang Sun, J.K. Fidler. Continuous-Time Active Filter Design. CRC Press 1999 19. Willy M.C. Sansen (2006). Analog Design Essentials. Springer 20. Phillip E. Allen, Douglas R. Holberg (2002). CMOS Analog Circuit Design. (2nd Edition). Oxford University Press. 21. David A.Johns, Ken Martin (1997). Analog Integrated Circuit Design. John Wiley & Sons, Inc.

Design of tunable differential transconductance-capacitance low pass filter

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