Method and apparatus for current amplification
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United States of America Patent
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Issued Date -
Mar 24, 2005
app pub date -
Sep 23, 2003
filing date -
Sep 23, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is described a method and circuit for amplifying an input current signal to provide an output current signal according to a predetermined gain profile. The method and circuit can be used for designing current-mode circuits employing MOS transistors or other kinds of electronic device that have three or more terminals. The circuit can operate with sub-nA currents, provide a very high current gain, and dissipate very low power. The structure of the circuit is simple and the transistors used do not have to have a large geometrical size. The capacitive loads are minimized and the operation speed is thus maximized with the minimum power dissipation.
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