Title :
A CMOS Variable-gain Fully-differential Transimpedance Amplifier for Multimedia Data Links
Author :
Chen, Roger Y. ; Chang, Ming-Jen
Author_Institution :
Electron. Eng. Dept., Nat. Yunlin Univ. of Sci. & Technol., Yunlin, Taiwan
Abstract :
A stable variable-gain fully-differential feedback transimpedance amplifier (TIA), to serve as a multimedia data-receiver front-end, is analyzed and designed employing a current-mode amplifier as the feedforward gain element. For a more than triple variation of the transimpedance gain, from 0.3 kOmega to 1 kOmega, the variable-gain transimpedance amplifier achieves desirable gain-bandwidth independence. A prototype has been successfully implemented in a 0.35 mum CMOS and its measurement results are included.
Keywords :
CMOS analogue integrated circuits; amplifiers; current-mode circuits; differential amplifiers; multimedia communication; optical receivers; radio links; CMOS variable-gain fully-differential transimpedance amplifier; current-mode amplifier; feedforward gain element; gain-bandwidth independence; multimedia data links; multimedia data-receiver front-end; size 0.35 mum; CMOS technology; Circuits; Data engineering; Feedback amplifiers; Optical amplifiers; Optical feedback; Optical receivers; Preamplifiers; Semiconductor optical amplifiers; Stimulated emission; CMOS optical preamplifiers; TIA; current amplifiers; infrared wireless optical receivers; transimpedance amplifiers;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2009. IIH-MSP '09. Fifth International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-4717-6
Electronic_ISBN :
978-0-7695-3762-7
DOI :
10.1109/IIH-MSP.2009.285
