Title :
A hierarchy of input stages for current feedback operational amplifiers
Author :
Tammam, A.A. ; Hayatleh, K. ; Hart, B. ; Lidgey, F.J.
Author_Institution :
Sch. of Technol., Oxford Brookes Univ., UK
Abstract :
This paper considers the trade-offs involved in the design of six new input stages intended to improve the performance of a current feedback operational amplifier (CFOA), over that possible using an established input circuit configuration, with respect to three major characteristics, viz, common mode rejection ratio (CMRR), offset voltage and skew rate.
Keywords :
feedback amplifiers; operational amplifiers; amplifier input stages; common mode rejection ratio; current feedback operational amplifiers; offset voltage; skew rate; Differential equations; Diodes; Equivalent circuits; Feedback circuits; Impedance; Mirrors; Operational amplifiers; Rails; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328321
