Current-mode preamplifier for response measurement of semiconductor scintillator

Autor: Xiao Yun, Milutin Stanacevic, V. Kuzminsky, M. Gouzman
Rok vydání: 2008
Předmět:
Zdroj: 2008 51st Midwest Symposium on Circuits and Systems.
DOI: 10.1109/mwscas.2008.4616820
Popis: A design of front-end preamplifier for measurement of optical response of photo-detector registering light produced by semiconductor scintillator is presented. The designed preamplifier is based on a current mode, regulated cascode (RGC) structure. A comparison with a previously reported common gate (CG) structure is provided. The experimental prototype was designed in 0.5 mum CMOS process. With a 5 V power supply, total power consumption of a chip is 7.5 mW. With 50 pF input capacitance and 100 nA leakage current of interfaced photo-detector, the equivalent noise charge (ENC) is 8000.
Databáze: OpenAIRE