FIELD: radio engineering; analogue microelectronics.
SUBSTANCE: amplifier comprises input field-effect transistors with combined sources, current mirrors, additional field-effect transistor, auxiliary resistor, additional current input connected to the gate of the first additional field-effect transistor.
EFFECT: technical result consists in improvement of coefficient of attenuation of input in-phase signals of OA for operation at low temperatures, having a significant effect on errors of classical analogue interfaces.
1 cl, 8 dwg
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