Design of a low-voltage constant transconductance rail-to-rail CMOS operational amplifier

This paper presents a rail-to-rail constant transconductance operational amplifier input stage. The proposed circuit changes the tail current of the input differential pairs dynamically for a constant-gm by using dummy input differential pairs. The problem which causes total gm variation is input pa...

Full description

Bibliographic Details
Main Authors: Gao Yuhong, Li Junlong
Format: Article
Language:zho
Published: National Computer System Engineering Research Institute of China 2020-01-01
Series:Dianzi Jishu Yingyong
Subjects:
Online Access:http://www.chinaaet.com/article/3000112378