DocumentCode
2046352
Title
High-speed, low input current transimpedance amplifier for led-photodiode pair
Author
Boukadoum, Mounir ; Obaid, Abdellatif
Author_Institution
Dept. d´´Inf., Univ. of Quebec at Montreal, Montreal, QC, Canada
fYear
2007
fDate
24-27 Nov. 2007
Firstpage
1119
Lastpage
1122
Abstract
A low current front-end transimpedance amplifier (TIA) circuit for a high-speed light emitting diode (LED) and photodetector (PD) pair is presented. It mitigates PD capacitance effects by using a low input impedance buffer between the PD and the amplifier´s input stage. Our simulation results show that a bandwidth in excess of 100 MHz can be reached for PD currents below 100 nA in amplitude. An actual circuit was built to confirm the projected capabilities of the system.
Keywords
amplifiers; light emitting diodes; photodetectors; photodiodes; LED-photodiode pair; TIA circuit; photodetector pair; transimpedance amplifier; Bandwidth; Capacitance; Circuits; Filters; Light emitting diodes; Operational amplifiers; Photodetectors; Photodiodes; Pulse amplifiers; Radiofrequency amplifiers; Photodetector; front end; photodiode; transimpedance amplifier;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location
Dubai
Print_ISBN
978-1-4244-1235-8
Electronic_ISBN
978-1-4244-1236-5
Type
conf
DOI
10.1109/ICSPC.2007.4728520
Filename
4728520
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