Title :
Tunable transimpedance amplifiers with constant bandwidth for optical communications
Author :
Sanz, M.T. ; del Pozo, J. M Garcia ; Celma, S. ; Alegre, J.P. ; Sarmiento, A.
Author_Institution :
Group of Electron. Design, Univ. of Zaragoza, Zaragoza
Abstract :
In this paper, two adaptive transimpedance amplifiers (TIAs) for optical communication receivers are presented and compared. Both TIAs are realized in a low-cost digital 0.35 mum CMOS process and fed from a single 1.8 V voltage supply. A transimpedance variation range of more than 12 dBOmega is attained with an almost constant bandwidth of about 1 GHz. The proposed configurations are characterized by their low-power operation and low input-referred spectral noise.
Keywords :
CMOS integrated circuits; amplifiers; low-power electronics; optical fibre communication; optical receivers; digital CMOS process; low-power operation; optical communications; optical receivers; size 0.35 mum; spectral noise; transimpedance variation; tunable transimpedance amplifiers; voltage 1.8 V; Bandwidth; Optical amplifiers; Optical fiber communication; Optical noise; Optical receivers; Radio frequency; Radiofrequency amplifiers; Resistors; Semiconductor optical amplifiers; Voltage;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541355
