The Design of High-Frequency OTA-C Filter for Wireless Sensors Network Applications

Zhi Qiang Gao; Wei Zheng; Liang Yin; Xiao Wei Liu

doi:10.4028/www.scientific.net/KEM.562-565.668

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 562-565The Design of High-Frequency OTA-C Filter for...

The Design of High-Frequency OTA-C Filter for Wireless Sensors Network Applications

Abstract:

The paper is presented the design of high-frequency OTA-C band-pass filter with on-chip automatic tuning. In this design, the linear operational transconductance amplifier (OTA) is proposed based on fully complementary differential pairs with source degneration, and achieves both low-distortion figures and high-frequency operation. The matching design between the master filter and the slave filter is also given, and the non-ideality effect of the OTA-C filters with on-chip automatic tuning is discussed. The whole circuit is designed using TSMC 0.18μm 1.8V CMOS process and post-simulation results show the center frequency of filter is 105MHz with relative error of 0.4%, when the process corner varies between SS, TT, FF, and the temperature from-20 to 120°C.

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Periodical:

Key Engineering Materials (Volumes 562-565)

Pages:

668-673

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.562-565.668

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Online since:

July 2013

Authors:

Zhi Qiang Gao, Wei Zheng, Liang Yin, Xiao Wei Liu

Keywords:

CMOS Process, Frequency Automatic Tuning, OTA-C Filter, Process Corner

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References

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