CMOS input buffer circuit

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United States of America Patent

PATENT NO 9337834
APP PUB NO 20150102848A1
SERIAL NO

14355580

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Abstract

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A high-linearity CMOS input buffer circuit is provided for neutralizing non-linearity of follower circuits' transconductance and output impedance resulting from input signals' variation. In doing so, the linearity of CMOS input buffer is improved. The buffer circuit includes a CMOS input follower circuit, a linearity improvement circuit of follower transistor, a current source load, and a linearity improvement circuit of load impedance. The buffer circuit is fabricated in standard CMOS process, featuring low cost, simplicity and strong linearity at high frequency. It has wide applications in analog and hybrid analog-digital CMOS ICs requiring high linearity input buffer.

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Patent Owner(s)

  • CHINA ELECTRONIC TECHNOLOGY CORPORATION, 24TH RESEARCH INSTITUTE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xi Chongqing, CN 824 6012
Hu, Gang-Yi Chongqing, CN 10 28
Huang, Xing-Fa Chongqing, CN 2 2
Huang, Xu Chongqing, CN 48 144
Li, Jiao-Xue Chongqing, CN 1 1
Li, Liang Chongqing, CN 445 2659
Shen, Xiao-Feng Chongqing, CN 1 1
Wang, Yan Chongqing, CN 1056 6505
Wang, You-Hua Chongqing, CN 1 1
Xu, Ming-Yuan Chongqing, CN 1 1
Xu, Xue-Liang Chongqing, CN 2 1
Ye, Rong-Ke Chongqing, CN 5 16
Zhang, Lei Chongqing, CN 2499 17879

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