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Characteristics of an electrometric amplifier using a varactor diode

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1 Author(s)
Bajon, J. ; Laboratoire d'Electronique et de Haute Fréquence de l'ENSEIHT, Toulouse, France

An analysis method of an electrometric amplifier using two pumped low-reverse-current silicon diodes is described. First, a mathematical model representing the i(v) characteristic near the zero, where the surface effects are the most important, is proposed. Then, from this general model, both input resistance and amplifier-sensitivity coefficients are calculated.

Published in:

Electronics Letters  (Volume:4 ,  Issue: 8 )