Future Works

With the progressing of technology, the power supply voltage will be reduced in nano-scale. In the portable devices, the feature of low power consumption is emphasized especially. As a result, attempting to design in low-voltage low-power with equal or better linearity is a challenge, and it is worthy to do the research.

Bibliography

[1] T. Y. Lo, High Performance CMOS Transconductors and Gm-C Filters for Wireless Communications and Wireline Systems. Ph. D. dissertation, National Chiao Tung University, 2007.

[2] Y. Tsividis, Z. Czarnul, and S. C. Fang, "MOS transconductors and integrators with high linearity," Electronics Letters, vol. 22, pp. 245-246, 1986.

[3] A. Lewinski and J. Silva-Martinez, "A High-Frequency Transconductor Using a Robust Nonlinearity Cancellation," Circuits and Systems II: Express Briefs, IEEE Transactions on [see also Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on], vol. 53, pp. 896-900, 2006.

[4] Z. Y. Chang, D. Haspeslagh, J. Boxho, and D. Macq, "A highly linear CMOS Gm-C bandpass filter for video applications," in Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996, 1996, pp. 89-92.

[5] F. Bahmani, F. Bahmani, and E. Sanchez-Sinencio, "A highly linear pseudo-differential transconductance," in Solid-State Circuits Conference, 2004.

ESSCIRC 2004. Proceeding of the 30th European, 2004, pp. 111-114.

[6] A. Lewinski and J. Silva-Martinez, "OTA linearity enhancement technique for high frequency applications with IM3 below -65 dB," Circuits and Systems II:

Express Briefs, IEEE Transactions on [see also Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on], vol. 51, pp. 542-548, 2004.

[7] T.-Y. Lo and C.-C. Hung, "A High Speed Pseudo-Differential OTA with Mobility Compensation Technique in 1-V Power Supply Voltage," in Solid-State Circuits Conference, 2006. ASSCC 2006. IEEE Asian, 2006, pp. 163-166.

[8] E. Sanchez-Sinencio and J. Silva-Martinez, "CMOS transconductance amplifiers, architectures and active filters: a tutorial," Circuits, Devices and Systems, IEE Proceedings -, vol. 147, pp. 3-12, 2000.

[9] R. G. Carvajal, J. Ramirez-Angulo, A. J. Lopez-Martin, A. Torralba, J. A. G.

Galan, A. Carlosena, and F. M. Chavero, "The flipped voltage follower: a useful cell for low-voltage low-power circuit design," Circuits and Systems I: Regular Papers, IEEE Transactions on, vol. 52, pp. 1276-1291, 2005.

[10] B. Calvo, S. Celma, and M. T. Sanz, "A linear CMOS Gm-C-OTA biquad filter with 10-100 MHz tuning," in Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on, 2004, pp. I-61-4 vol.1.

[11] B. Razavi, Design of Analog CMOS Integrated Circuit, New York:

McGraw-Hill, 2001.

[12] T.-Y. Lo and C.-C. Hung, "1.5-V Linear CMOS OTA with -60dB IM3 for High Frequency Applications," in Solid-State Circuits Conference, 2006. ASSCC 2006.

IEEE Asian, 2006, pp. 167-170.

[13] Rolf Schaumann, Mac E. Van Valkenburg, Design of Analog Filter, New York:

Oxford University Press, Inc. 2001.

[14] A. N. Mohieldin, E. Sanchez-Sinencio, and J. Silva-Martinez, "A fully balanced pseudo-differential OTA with common-mode feedforward and inherent common-mode feedback detector," Solid-State Circuits, IEEE Journal of, vol.

38, pp. 663-668, 2003.

[15] Stefano D'Amico, M. Conta, and A. Baschirotto, "A 4.1-mW 10-MHz fourth-order source-follower-based continuous-time filter with 79-dB DR,"

IEEE J. Solid-State Circuits, vol. 41, no. 12, pp. 2713-2719, Dec. 2006.

[16] I. S. Han, “A novel tunable transconductance amplifier based on voltage-controlled resistance by MOS transistors,” IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 53, no. 8, pp. 662–666, Aug. 2006.

[17] O. J. Antonova, D. I. Pukneva, E. D. Manolov, and M. H. Hristov, "Design of CMOS OTA core for practical education," in Electronics Technology: Meeting the Challenges of Electronics Technology Progress, 2004. 27th International Spring Seminar on, 2004, pp. 332-337 vol.2.

[18] D. Majumdar, "Comparative study of low voltage OTA designs," in VLSI Design, 2004. Proceedings. 17th International Conference on, 2004, pp. 47-51.

[19] B. Nauta, "A CMOS transconductance-C filter technique for very high frequencies," Solid-State Circuits, IEEE Journal of, vol. 27, pp. 142-153, 1992.

[20] L. Tien-Yu and H. Chung-Chih, "A 1 GHz OTA-based low-pass filter with a high-speed automatic tuning scheme," in Solid-State Circuits Conference, 2007.

ASSCC '07. IEEE Asian, 2007, pp. 408-411.

[21] L. Tien-Yu and H. Chung-Chih, "A Wide Tuning Range Gm-C Continuous-Time Analog Filter," Circuits and Systems I: Regular Papers, IEEE Transactions on [Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on], vol. 54, pp. 713-722, 2007.

[22] C. Mingdeng, J. Silva-Martinez, S. Rokhsaz, and Moises Robinson, "A 2-Vpp

80-200-MHz fourth-order continuous-time linear phase filter with automatic frequency tuning," Solid-State Circuits, IEEE Journal of, vol. 38, pp. 1745-1749, 2003.

[23] P. Likittanapong, A. Worapishet, and C. Toumazou, "Linear CMOS triode transconductor for low-voltage applications," Electronics Letters, vol. 34, pp.

1224-1225, 1998.

[24] C. H. J. Mensink and B. Nauta, "CMOS tunable linear current divider,"

Electronics Letters, vol. 32, pp. 889-890, 1996.

[25] S. Mehrmanesh, H. A. Aslanzadeh, M. B. Vahidfar, and M. Atarodi, "A 1.8V high dynamic range CMOS Gm-c filter for portable video systems," in Microelectronics, The 14th International Conference on 2002 - ICM, 2002, pp.

38-41.

[26] C. Mingdeng, A. N. Mohieldin, and J. Silva-Martinez, "Linearized OTAs for high-frequency continuous-time filters: a comparative study," in Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on, 2002, pp. III-149-III-152 vol.3.

[27] S. Szczepanski, S. Koziel, and E. Sanchez-Sinencio, "Linearized CMOS OTA using active-error feedforward technique," in Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on, 2004, pp. I-549-52 Vol.1.

[28] J. Sevenhans and M. Van Paemel, "Novel CMOS linear OTA using feedback control on common source node," Electronics Letters, vol. 27, pp. 1873-1875, 1991.

[29] J. F. Duque-Carrillo, "Continuous-time common-mode feedback networks for fully-differential amplifiers: a comparative study," in Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on, 1993, pp. 1267-1270 vol.2.

[30] M. Kachare, A. J. Lopez-Martin, J. Ramirez-Angulo, and R. G. Carvajal, "A compact tunable CMOS transconductor with high linearity," Circuits and Systems II: Express Briefs, IEEE Transactions on, vol. 52, pp. 82-84, 2005.

[31] P. M. Van Peteghem, H. M. Fossati, G. L. Rice, and S. Y. Lee, "Design of a very linear CMOS transconductance input stage for continuous-time filters,"

Solid-State Circuits, IEEE Journal of, vol. 25, pp. 497-501, 1990.

[32] A. Worapishet and C. Naphaphan, "Current-feedback source-degenerated CMOS transconductor with very high linearity," Electronics Letters, vol. 39, pp.

17-18, 2003.

[33] J. J. F. Rijns, "CMOS low-distortion high-frequency variable-gain amplifier,"

Solid-State Circuits, IEEE Journal of, vol. 31, pp. 1029-1034, 1996.

[34] R. Kolm and H. Zimmermann, "A 3rd-Order 235MHz Low-Pass gmC-Filter in 120nm CMOS," in Solid-State Circuits Conference, 2006. ESSCIRC 2006.

Proceedings of the 32nd European, 2006, pp. 215-218.

[35] A. Zeki and H. Kuntman, "Accurate and high output impedance current mirror suitable for CMOS current output stages," Electronics Letters, vol. 33, pp.

1042-1043, 1997.

[36] F. A. P. Baruqui and A. Petraglia, "Linearly Tunable CMOS OTA With Constant Dynamic Range Using Source-Degenerated Current Mirrors," Circuits and Systems II: Express Briefs, IEEE Transactions on, vol. 53, pp. 797-801, 2006.

[37] S. Shu-Xiang, Y. Guo-Ping, and C. Hua, "A highly linear wide range continuous tuning CMOS OTA," in ASIC, 2007. ASICON '07. 7th International Conference on, 2007, pp. 588-591.

[38] E. Rodriguez-Villegas, A. J. Payne, and C. Toumazou, "A 290 nW, weak inversion, Gm-C biquad," in Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on, 2002, pp. II-221-II-224 vol.2.

[39] L. Tien-Yu and H. Chung-Chih, "Multimode Gm-C Channel Selection Filter for Mobile Applications in 1-V Supply Voltage," Circuits and Systems II: Express Briefs, IEEE Transactions on, vol. 55, pp. 314-318, 2008.

[40] T. Tanaka, C. Sungwoo, S. Shimizu, T. Ida, H. Ishihara, T. Matsuoka, K.

Taniguchi, A. Sugimori, and H. Hihara, "A widely tunable Gm-C filter using tail current offset in two differential pairs," in Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on, 2005, pp. 812-815 Vol. 1.

[41] L. Tien-Yu and H. Chung-Chih, "A 1-V Gm-C low-pass filter for UWB wireless application," in Solid-State Circuits Conference, 2008. A-SSCC '08. IEEE Asian, 2008, pp. 277-280.

[42] Z. Xuguang and E. I. El-Masry, "A Novel CMOS OTA Based on Body-Driven MOSFETs and its Applications in OTA-C Filters," Circuits and Systems I:

Regular Papers, IEEE Transactions on, vol. 54, pp. 1204-1212, 2007.