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The output stage of an operational amplifier on GaAs n-channel field-effect and GaAs p-n-p bipolar transistors with nonlinear negative feedback.pdf (1.02 MB)
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The output stage of an operational amplifier on GaAs n-channel field-effect and GaAs p-n-p bipolar transistors with nonlinear negative feedback

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posted on 21.12.2021, 04:19 authored by Alexey ZhukAlexey Zhuk, Nikolay Prokopenko, Ilya Pakhomov, Alexey Titov

A new circuit of the output stage of an operational amplifier implemented on GaAs n-channel field-effect transistors with a control p-n junction and GaAs bipolar p-n-p transistors is investigated. Its peculiarity consists in the presence of a nonlinear negative feedback that stabilizes the drain current of the output transistor with an n-channel at a negative input voltage. The basic equations for the static mode of the output stage are given. The results of modeling in the LTspice simulation software of 3 modifications of the proposed circuit solutions are discussed.

Funding

RSF project No. 18-79-10109-P

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Email Address of Submitting Author

alexey.zhuk96@mail.ru

ORCID of Submitting Author

0000-0002-7116-5924

Submitting Author's Institution

Don State Technical University

Submitting Author's Country

Russian Federation

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