Title :
A switched-opamp with fast common mode feedback
Author :
Waltari, Mikko ; Halonen, Kari
Author_Institution :
Lab. of Electron. Circuit Design, Helsinki Univ. of Technol., Espoo, Finland
Abstract :
In this paper a switched-opamp with a fast common mode feedback (CMFB) circuit is presented. The fully differential two stage amplifier needs CMFB only for the second stage, and thus a fast and simple passive CMFB-circuit may be used. The amplifier is capable of 1 volt operation and has no limitation on the maximum supply voltage
Keywords :
differential amplifiers; feedback amplifiers; low-power electronics; operational amplifiers; switched networks; 1 V; CMFB; fast common mode feedback; fully differential two stage amplifier; switched-opamp; Capacitors; Electronic circuits; Feedback circuits; Impedance; Laboratories; Operational amplifiers; Switches; Switching circuits; Variable structure systems; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.814460
