Title :
How to enlarge the bandwidth without increasing the noise in OP-AMP-based transimpedance amplifier
Author :
Ciofi, Carmine ; Crupi, Felice ; Pace, Calogero ; Scandurra, Graziella
Author_Institution :
Dipt. di Fisica della Materia e Tecnologie Fisiche avanzate, Univ. of Messina
fDate :
6/1/2006 12:00:00 AM
Abstract :
Increasing the bandwidth without degrading the noise performance represents the main challenge in the design of transimpedance amplifiers. This paper presents a novel circuit topology for a transimpedance amplifier that allows obtaining an improved tradeoff between equivalent input noise and bandwidth with respect to the conventional approach. The effectiveness of the new topology has been demonstrated by designing and testing a prototype of a transimpedance amplifier based on the proposed topology
Keywords :
circuit noise; network synthesis; network topology; operational amplifiers; OP-AMP based transimpedance amplifier; circuit topology; equivalent input noise; noise performance; operational amplifiers; Bandwidth; Circuit noise; Circuit topology; Feedback; Frequency; Low-noise amplifiers; Noise measurement; Operational amplifiers; Resistors; Semiconductor device noise; Amplifier noise; noise measurement; spectral analysis; transimpedance amplifier;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2006.873782
