0.9V low-power switched-opamp switched-capacitor bandpass filter for electroneurography acquisition systems

S. C. Lee; S. Y. Lee; C. H. Chiang

doi:10.1049/iet-cds:20070163

0.9V low-power switched-opamp switched-capacitor bandpass filter for electroneurography acquisition systems

S. C. Lee, S. Y. Lee, C. H. Chiang

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A 0.9V fully differential switched-opamp-based sixth-order switched-capacitor bandpass filter, which has frequency response centred at 1.118kHz with a Q of 0.235 and power saving by a proposed low-power biquad structure, is designed for electroneurography acquisition systems. It is implemented in a 0.18m CMOS technology with a normal threshold voltage of 0.48V. The measured peak signal-to-noise ratio is 52dB at 1kHz sinusoid wave with input amplitude of 1V_pp. In addition, the measured power-supply rejection ratio and common-mode rejection ratio are >40dB in the desired bandwidth and have peak values of 70 and 67dB, respectively. A dynamic range of 50dB for total harmonic distortion of 3 is obtained while dissipating 262W and occupying a chip area of 0.35mm².

Original language	English
Pages (from-to)	257-263
Number of pages	7
Journal	IET Circuits, Devices and Systems
Volume	2
Issue number	2
DOIs	https://doi.org/10.1049/iet-cds:20070163
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1049/iet-cds:20070163

Cite this

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abstract = "A 0.9V fully differential switched-opamp-based sixth-order switched-capacitor bandpass filter, which has frequency response centred at 1.118kHz with a Q of 0.235 and power saving by a proposed low-power biquad structure, is designed for electroneurography acquisition systems. It is implemented in a 0.18m CMOS technology with a normal threshold voltage of 0.48V. The measured peak signal-to-noise ratio is 52dB at 1kHz sinusoid wave with input amplitude of 1Vpp. In addition, the measured power-supply rejection ratio and common-mode rejection ratio are >40dB in the desired bandwidth and have peak values of 70 and 67dB, respectively. A dynamic range of 50dB for total harmonic distortion of 3 is obtained while dissipating 262W and occupying a chip area of 0.35mm2.",

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AU - Lee, S. Y.

AU - Chiang, C. H.

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AB - A 0.9V fully differential switched-opamp-based sixth-order switched-capacitor bandpass filter, which has frequency response centred at 1.118kHz with a Q of 0.235 and power saving by a proposed low-power biquad structure, is designed for electroneurography acquisition systems. It is implemented in a 0.18m CMOS technology with a normal threshold voltage of 0.48V. The measured peak signal-to-noise ratio is 52dB at 1kHz sinusoid wave with input amplitude of 1Vpp. In addition, the measured power-supply rejection ratio and common-mode rejection ratio are >40dB in the desired bandwidth and have peak values of 70 and 67dB, respectively. A dynamic range of 50dB for total harmonic distortion of 3 is obtained while dissipating 262W and occupying a chip area of 0.35mm2.

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0.9V low-power switched-opamp switched-capacitor bandpass filter for electroneurography acquisition systems

Abstract

All Science Journal Classification (ASJC) codes

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