HIGH CMRR LOW-VOLTAGE LOW POWER CURRENT OUTPUT STAGE WITH A NOVEL CMFB
In this paper, a low voltage low power (LPLV) current output stage (COS) with high CMRR is proposed. A novel common mode feedback (CMFB) technique is exploited to provide high CMRR. That is done by summing the main common mode signal and its opposite polarity one which provides over 112dB of CMRR in 0.18/im CMOS technology of TSMC. The circuit operates with very low supply voltages of ±0.5Vand consumes only 145fiW power which show good improvement compared to other similar stages in literatures. Monte Carlo simulation of CMRR is also performed and shows its sufficient robustness against mismatches.
CMRR Current mode Current Oprational Amplifier COA COS CMFB
Seyedjavadazhari Alireza Ghorbani Leila safari
Department of Electronics,Electronic Research Center University of Science and Technology Tehran,Iran
国际会议
上海
英文
382-386
2011-03-11（万方平台首次上网日期，不代表论文的发表时间）