Method for optimizing the design of photodetector circuitry

Edward H. David Jr.; Hai V. Tran

doi:10.1117/12.138636

10 December 1992 Method for optimizing the design of photodetector circuitry

Edward H. David Jr., Hai V. Tran

Proceedings Volume 1735, Infrared Detectors: State of the Art; (1992) https://doi.org/10.1117/12.138636
Event: San Diego '92, 1992, San Diego, CA, United States

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.

Citation Download Citation

Edward H. David Jr. and Hai V. Tran "Method for optimizing the design of photodetector circuitry", Proc. SPIE 1735, Infrared Detectors: State of the Art, (10 December 1992); https://doi.org/10.1117/12.138636

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