Wideband amplifier

Details Wideband amplifier Wideband amplifier

1988-04-25

1989-05-16

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

323315, H03F 304

Patent

active

048313378

ABSTRACT:
An amplifier comprising a plurality of stacked current mirrors, each having an input and a common terminal, provides an output amplified current in response to receiving an input current at first and second inputs. A current source supplies a direct current to the input of the first one of the current mirrors while the input and the common terminal is also coupled to the first and second inputs of the amplifier. The common terminal of each preceding current mirror is coupled to the input of the next proceeding current mirror whereby the sum of the input and output currents of the preceding amplifier is sourced to the input of the proceeding current mirror. An output of the last one of the plurality of current mirrors is coupled to the output of the amplifier.

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