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Proceedings Paper

Method for optimizing the design of photodetector circuitry
Author(s): Edward H. David; Hai V. Tran
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Paper Abstract

Several photodetector applications require optimizing pulse response at moderate bandwidths. With current technology, such detector circuits can be op-amp based transimpedance amplifiers. Unfortunately, the usual transimpedance topology, having a single feedback resistor, does not give enough control over pole placement for design optimization. If the single resistor is replaced by a tee-network, however, the transimpedance amplifier can be made to approximate any desired second-order network response. We present an analysis that shows how to choose resistor values to achieve desired second-order parameters: damped natural frequency and damping coefficient. Experimental results are presented that confirm the validity of our design method.

Paper Details

Date Published: 10 December 1992
PDF: 12 pages
Proc. SPIE 1735, Infrared Detectors: State of the Art, (10 December 1992); doi: 10.1117/12.138636
Show Author Affiliations
Edward H. David, MITRE Corp. (United States)
Hai V. Tran, MITRE Corp. (United States)

Published in SPIE Proceedings Vol. 1735:
Infrared Detectors: State of the Art
Wagih H. Makky, Editor(s)

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