Input tracking current mirror for a differential amplifier...

Details Input tracking current mirror for a differential amplifier... Input tracking current mirror for a differential amplifier...

2007-07-31

2007-07-31

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S258000, C330S260000

Reexamination Certificate

active

11304326

ABSTRACT:
An input tracking current mirror for a differential amplifier system includes a current mirror having an input leg and an output leg, a differential amplifier including a first set of at least two transconductance components, each having at least one input terminal for receiving input signals, the first set of at least two transconductance components having a first common node connected to the output leg which has a first voltage that is a function of the input signals, and a tracking circuit including a second set of at least two transconductance components each having at least one input terminal for receiving the input signals, the second set of at least two transconductance components, having a second common node connected to the input leg which has a second voltage that is a function of the input signals, the tracking circuit driving the second voltage on the input leg to track the first voltage on the output leg with variations in the input signals.

REFERENCES:
patent: 5714906 (1998-02-01), Motamed et al.
patent: 6891433 (2005-05-01), Schrader
patent: 7042289 (2006-05-01), Hwang et al.
patent: 7049889 (2006-05-01), Kalb

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