article

An active device based wide tuning range CMOS transconductor

Authors:

Tien-Yu Lo,

Chung-Chih HungAuthors Info & Claims

Analog Integrated Circuits and Signal Processing, Volume 71, Issue 1

Pages 119 - 122

https://doi.org/10.1007/s10470-011-9754-y

Published: 01 April 2012 Publication History

Abstract

A CMOS transconductor for wide tuning range filter application is presented. The linear transconductor is designed based on the flipped-voltage follower (FVF) circuit and can work in the weak, moderate, and strong inversion regions to maximize the transconductance tuning range. The transconductance tuning can be achieved by changing the bias current of the active resistor, and a ratio of 28 is obtained. The transconductor was evaluated by using TSMC 0.18 μm CMOS process, and the total harmonic distortion (THD) of 56 dB can be obtained by giving a 12 MHz 0.4 Vpp input swing signal. In the design, the maximum power consumption is 2 mW with the transconductance of 1.1 mS under a 1.8 V supply voltage.

References

[1]

Lo, T. Y., & Hung, C. C. (2008). A 40 MHz double differentialpair CMOS OTA with -60 dB IM3. IEEE Transactions on Circuits and Systems I, 55 (2), 258-265.

Google Scholar

[2]

Lo, T.Y., & Hung, C.C. (2006). High speed and high linearity OTA in 1-V power supply voltage. In Proceedings IEEE international symposium on circuits and systems , 1864-1867.

Google Scholar

[3]

Fischer, T. W., Karsilayan, A. I., & Sanchez-Sinencio, E. (2005). A rail-to-rail amplifier input stage with ± 0.35% gm fluctuation. IEEE Transactions on Circuits and Systems I, 52 (2), 271-282.

Google Scholar

[4]

Masoom, A., & Hadidi, Kh. (2006). A 1.5-V, constant-gm, rail-torail input stage operational amplifier. In Proceedings of international conference on electronics circuits and systems , (pp. 632-635). Phoenix.

Google Scholar

[5]

Hori, S., et al. (2003). A widely tunable CMOS Gm-C filter with a negative source degeneration resistor transconductor. In Proceedings of IEEE solid-state circuits conference (pp. 449-452). Lisbon.

Google Scholar

[6]

Carvajal, R. G., et al. (2005). The flipped voltage follower: A useful cell for low-voltage low-power circuit design. IEEE Transactions on Circuits and Systems I, 52 (7), 1276-1291.

Google Scholar

[7]

Yodprasit, U., & Enz, C. C. (2003). A 1.5-V 75-dB dynamic range third-order Gm-C filter integrated in a 0.18-um standard digital cmos process. IEEE Journal of Solid-State Circuits, 38 (7), 1189-1197.

Google Scholar

An active device based wide tuning range CMOS transconductor
1. Hardware

Recommendations

Linear low voltage nano-scale CMOS transconductor

This paper presents a high linearity MOSFET-only transconductor based on differential structures. While a precise BSIM4 transistor model is introduced through analysis, the linearity can be improved by mobility compensation techniques as the device size ...
A low-voltage low-power CMOS fully differential linear transconductor with mobility reduction compensation

A highly linear fully differential CMOS transconductor architecture based on flipped voltage follower (FVF) is proposed. The linearity of the proposed architecture is improved by mobility reduction compensation technique. The simulated total harmonic ...
A New Low Voltage CMOS Transconductor for VHF Filtering Applications

In this paper, a new differential input CMOS transconductor circuit for VHF filtering application is introduced. The new circuit has a very high frequency bandwidth, large linear differential mode input range and good common mode signal rejection ...

Comments

Information & Contributors

Information

Published In

cover image Analog Integrated Circuits and Signal Processing

Analog Integrated Circuits and Signal Processing Volume 71, Issue 1

April 2012

150 pages

ISSN:0925-1030

Issue’s Table of Contents

Publisher

Kluwer Academic Publishers

United States

Publication History

Published: 01 April 2012

Author Tags

Qualifiers

Article

Contributors

Other Metrics

View Article Metrics

Bibliometrics & Citations

Bibliometrics

Article Metrics

0
Total Citations
0
Total Downloads

Downloads (Last 12 months)0
Downloads (Last 6 weeks)0

Reflects downloads up to 12 Nov 2024

Other Metrics

View Author Metrics

Citations

View Options

View options

Get Access

Login options

Check if you have access through your login credentials or your institution to get full access on this article.

Abstract

References

Recommendations

Linear low voltage nano-scale CMOS transconductor

A low-voltage low-power CMOS fully differential linear transconductor with mobility reduction compensation

A New Low Voltage CMOS Transconductor for VHF Filtering Applications

Comments

Information

Published In

Publisher

Publication History

Author Tags

Qualifiers

Contributors

Other Metrics

Bibliometrics

Article Metrics

Other Metrics

Citations

View options

Get Access

Login options

Full Access

Figures

Other

Share

Share this Publication link

Share on social media

Affiliations