Title :
Continuous-time common-mode feedback networks for fully-differential amplifiers: a comparative study
Author :
Duque-Carrillo, J.F.
Author_Institution :
Dpto. Electron. e Ing. Electromec., Univ. de Extremadura, Badajoz, Spain
Abstract :
Suitable figures of merit to compare different common-mode feedback (CMFB) networks are deduced. They allow evaluation of the conversion gain or linear interaction, relative performance, and nonlinear interaction between common-mode and differential-mode loops in any fully differential one-stage output compensated amplifier. Three often used CMFB loops, based on different operation principles, are classified according to these figures of merit
Keywords :
CMOS analogue integrated circuits; differential amplifiers; feedback amplifiers; CMFB loops; common-mode feedback networks; differential-mode loops; figures of merit; fully-differential amplifiers; one-stage output compensated amplifier; Delta modulation; Detectors; Differential amplifiers; Dynamic range; Feedback loop; Flow graphs; Performance gain; Signal detection; Signal processing; Voltage;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393960
