A nested DC offset cancellation circuit based on negative feedback technique

Based on the UMC 40 nm CMOS process, a programmable gain amplifier(PGA) with DC offset cancellation circuit(DCOC) is designed. The PGA adopts a closed-loop resistance negative feedback structure and consists of a cascade of two gain units. DCOC circuit is based on the traditional DC negative feedbac...

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Bibliographic Details
Main Authors: Zhang Fangling, Lei Qianqian, Zhang Xudong, Li Xian, LI Lianbi
Format: Article
Language:zho
Published: National Computer System Engineering Research Institute of China 2021-05-01
Series:Dianzi Jishu Yingyong
Subjects:
Online Access:http://www.chinaaet.com/article/3000131255