A 10-Gb/s inductor-less variable gain amplifier with a linear-in-dB characteristic and DC-offset cancellation

• Main Authors: Liu, Chang, Yan, Yuepeng, Goh, Wang Ling, Xiong, Yong-Zhong, Zhang, Lijun, Madihian, Mohammad
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Semiconductors
• Online Access: https://hdl.handle.net/10356/99299; http://hdl.handle.net/10220/17184
• Institution: Nanyang Technological University

This paper presents a broadband inductor-less variable gain amplifier (VGA) with a linear-in-dB gain control characteristic and DC-offset cancellation. The proposed VGA is composed of a variable gain block, an exponential voltage generator, a DC-offset canceller with common-mode voltage correction,...