Circuitry of control devices for linear NMOS photodetectors for use in space experiments

This article is the final and generalizing in a series of publications reporting the construction of systems for obtaining a useful signal from linear NMOS photodetectors with current output in terms of space experiments. The general principles of building such systems are given and the experience of their implementation in today realities is systematized. Issues that are not covered in the technical literature of manufacturers of photodetectors, such as the choice of the element base of the charge integrator , the circuitry of the reset key of the integrator and the implementation of a logical control circuit based on the PLD, are considered in detail. In particular, this article summarizes the experience of developing a Hamamatsu NMOS photodetector signal processing unit for use in the promising solar space observatory "Interhelio-Zond" and details the conditions necessary for the construction of such nodes due to gaps in the technical documentation of the manufacturer, as well as the specifics of domestic restrictive listings.