DIFFERENTIAL CURRENT AMPLIFIER Russian patent published in 2018 - IPC H03F3/45 

FIELD: electrical engineering.

SUBSTANCE: invention refers to the amplification devices for broadband signals. Differential current amplifier (DCA) comprises the first, the second, the third and the fourth additional transistors, the gate of the first additional transistor is connected to the first current input of the device, the gate of the second additional transistor is connected to the second (2) current input of the device, the drains of the first and second additional transistors are matched to the first power supply bus, the drain of the third additional transistor is connected to the gate of the first output transistor and to the source of the first auxiliary transistor, the drain of the fourth additional transistor is connected to the gate of the second output transistor and to the source of the second auxiliary transistor, the sources of the first and second additional transistors are connected to the closures of the third and fourth additional transistors, and the sources of the third and fourth additional transistors are connected to the second power supply bus.

EFFECT: technical result is to increase the current gain of the DCA while retaining the rail-to-rail option.

4 cl, 6 dwg