Радиационностойкий измерительный усилитель на базе мультидифференциальных  входных каскадов

С.Г. Крутчинский; А.С. Исанин; Н.Н. Прокопенко; В.Г. Манжула

Radiation-resistant measuring amplifier based multidifferential input stages

The paper presents a functional diagram multidifferential operational amplifier, which in contrast to conventional operational amplifiers, has some inverting and non-inverting inputs, and provides a relatively high input voltage limit. Application of basic common-mode feedback signal allowed increasing CMRR voltage on both channels. The use of additional passive components in the emitter circuit of the multidifferential cascade possible to increase the voltage limit of the operational amplifier, the rate of increase of its output voltage to provide high accuracy ratio of the transmission channel and to improve the stability of the corresponding parameters of measuring devices based on multidifferential operational amplifier.

Keywords: system-on-chip, input stage, radiation, amplifier, analog-to-digital converter, bipolar transistor, field transistor