摘要
提出了一种单电源5V供电的带共模反馈的两级套筒式运算放大器结构.该套筒式运算放大器的输入共模反馈结构使输出共模电平维持在2.5 V左右,增益可达到110dB以上,相位裕度为50°,单位增益带宽为60.83 MHz.
A two-stage telescopic operational amplifier with common-mode feedback structure is presented, which is supplied by a single 5 V power. The smart input common-mode feedback structure of the telescopic stage stabilizes the output common-mode voltage at almost 2.5 V. At last, the gain of amplifier is over 110 dB and phase margin is 50°, and the gain bandwidth is 60. 83 MHz.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2006年第5期783-785,共3页
Journal of Harbin Institute of Technology
关键词
共模反馈
高增益
套筒式运算放大器
CMOS工艺
common-mode feedback
high gain
telescopic operational amplifier
CMOS technology
