Title :
Wideband and high gain current-feedback opamp
Author :
Vanisri, T. ; Toumazou, Christofer
Author_Institution :
Imperial Coll. of Sci. Technol. & Med., London, UK
Abstract :
A technique to improve the maximum gain-bandwidth product of the current-feedback opamp is described. Simulated results using high speed complementary bipolar transistors demonstrate that closed-loop voltage gains of 100 can be achieved with maximum bandwidths of 100 MHz with slew rates of the order of 1000 V/ mu S.
Keywords :
feedback; operational amplifiers; wideband amplifiers; 100 MHz; closed-loop voltage gains; current mirror gain stage; current-feedback opamp; high gain; high speed complementary bipolar transistors; maximum bandwidths; maximum gain-bandwidth product; slew rates; wideband opamp;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921084
