FIELD: radio engineering.
SUBSTANCE: operational amplifier having a gain adjustment circuit has an input differential stage, a current mirror, an output transistor, a two-terminal collector load, an output buffer amplifier, a gain adjustment circuit and an additional two-terminal feedback.
EFFECT: creating conditions for including into an operational amplifier elements for advance frequency compensation in order to generate given amplitude-frequency characteristics of the operational amplifier and providing amplitude and phase stability margin, as well as controlling the value Kc for those cases when the disclosed architecture is used as a device with programmable parameters.
10 cl, 12 dwg
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