A pseudo-differential OTA with linearity improving by HD3 feedforward

Chao Liang Chien; Chung-Chih Hung; Chia Wei Chen

doi:10.1109/ASSCC.2009.5357222

A pseudo-differential OTA with linearity improving by HD3 feedforward

Chao Liang Chien^*, Chung-Chih Hung, Chia Wei Chen

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

6 Scopus citations

Abstract

This paper presents a fully balanced structure of a CMOS operational transconductance amplifier (OTA) with high linearity for frequency up to 50MHz. The proposed circuit is based on a conventional pseudo-differential structure with a third-order harmonic distortion (HD3) feedforward technique to cancel out the output 3rd harmonic component. The OTA was fabricated in the TSMC CMOS 0.18μm technology. The measurement results show the HD3 of -62dB with 0.4-Vpp 50MHz input signal and the power consumption of 0.47mW at a 1.2-V voltage supply.

Original language	English
Title of host publication	Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009
Pages	237-240
Number of pages	4
DOIs	https://doi.org/10.1109/ASSCC.2009.5357222
State	Published - 1 Dec 2009
Event	2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009 - Taipei, Taiwan Duration: 16 Nov 2009 → 18 Nov 2009

Publication series

Name	Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009

Conference

Conference	2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009
Country/Territory	Taiwan
City	Taipei
Period	16/11/09 → 18/11/09

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10.1109/ASSCC.2009.5357222

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Chien, C. L., Hung, C.-C., & Chen, C. W. (2009). A pseudo-differential OTA with linearity improving by HD3 feedforward. In Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009 (pp. 237-240). Article 5357222 (Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009). https://doi.org/10.1109/ASSCC.2009.5357222

@inproceedings{8151d79040d94151b2930c7080a00727,

title = "A pseudo-differential OTA with linearity improving by HD3 feedforward",

abstract = "This paper presents a fully balanced structure of a CMOS operational transconductance amplifier (OTA) with high linearity for frequency up to 50MHz. The proposed circuit is based on a conventional pseudo-differential structure with a third-order harmonic distortion (HD3) feedforward technique to cancel out the output 3rd harmonic component. The OTA was fabricated in the TSMC CMOS 0.18μm technology. The measurement results show the HD3 of -62dB with 0.4-Vpp 50MHz input signal and the power consumption of 0.47mW at a 1.2-V voltage supply.",

author = "Chien, {Chao Liang} and Chung-Chih Hung and Chen, {Chia Wei}",

year = "2009",

month = dec,

day = "1",

doi = "10.1109/ASSCC.2009.5357222",

language = "English",

isbn = "9781424444342",

series = "Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009",

pages = "237--240",

booktitle = "Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009",

note = "2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009 ; Conference date: 16-11-2009 Through 18-11-2009",

}

Chien, CL, Hung, C-C & Chen, CW 2009, A pseudo-differential OTA with linearity improving by HD3 feedforward. in Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009., 5357222, Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009, pp. 237-240, 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009, Taipei, Taiwan, 16/11/09. https://doi.org/10.1109/ASSCC.2009.5357222

A pseudo-differential OTA with linearity improving by HD3 feedforward. / Chien, Chao Liang; Hung, Chung-Chih; Chen, Chia Wei.
Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009. 2009. p. 237-240 5357222 (Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Hung, Chung-Chih

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N2 - This paper presents a fully balanced structure of a CMOS operational transconductance amplifier (OTA) with high linearity for frequency up to 50MHz. The proposed circuit is based on a conventional pseudo-differential structure with a third-order harmonic distortion (HD3) feedforward technique to cancel out the output 3rd harmonic component. The OTA was fabricated in the TSMC CMOS 0.18μm technology. The measurement results show the HD3 of -62dB with 0.4-Vpp 50MHz input signal and the power consumption of 0.47mW at a 1.2-V voltage supply.

AB - This paper presents a fully balanced structure of a CMOS operational transconductance amplifier (OTA) with high linearity for frequency up to 50MHz. The proposed circuit is based on a conventional pseudo-differential structure with a third-order harmonic distortion (HD3) feedforward technique to cancel out the output 3rd harmonic component. The OTA was fabricated in the TSMC CMOS 0.18μm technology. The measurement results show the HD3 of -62dB with 0.4-Vpp 50MHz input signal and the power consumption of 0.47mW at a 1.2-V voltage supply.

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BT - Proceedings of Technical Papers - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009

T2 - 2009 IEEE Asian Solid-State Circuits Conference, A-SSCC 2009

Y2 - 16 November 2009 through 18 November 2009

ER -

A pseudo-differential OTA with linearity improving by HD3 feedforward

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