Title :
Current feedback opamp limitations: a state-of-the-art review
Author_Institution :
Elantec, Inc., Milpitas, CA, USA
Abstract :
The current-feedback amplifier delivers large high-frequency signals linearly into heavy loads. It provides relatively constant bandwidth over a range of fed-back gains. Offsets, gain errors, and settling tails are prevalent in the design, and are investigated. Specific topics addressed include static DC errors, settling performance, frequency response aberrations, and noise characteristics
Keywords :
analogue integrated circuits; errors; feedback amplifiers; frequency response; integrated circuit noise; operational amplifiers; reviews; transfer functions; constant bandwidth; current-feedback amplifier; frequency response aberrations; gain errors; large high-frequency signals; noise characteristics; op amp offsets; opamp limitations; settling performance; settling tails; static DC errors; Bandwidth; Feedback amplifiers; Mirrors; Radiofrequency amplifiers; Resistors; Roentgenium; State feedback; Temperature; Topology; 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.1993.393918
