China Electronic Technology Corporation, 24th Research Institute

Xue-Liang Xu

Yan Wang

Liang Li

Gang-Yi Hu

Lei Zhang

Xi Chen

Rong-Ke Ye

Xing-Fa Huang

Ming-Yuan Xu

You-Hua Wang

Xu Huang

Jiao-Xue Li

Xiao-Feng Shen

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.

CMOS input buffer circuit

Growing community of inventors

Chongqing, China

Xue-Liang Xu