System and method for programmable switching characteristics...

Details System and method for programmable switching characteristics... System and method for programmable switching characteristics...

2008-07-01

2008-07-01

Lam, Tuan T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Nonlinear amplifying circuit

C327S562000, C330S253000, C330S305000

Reexamination Certificate

active

07394310

ABSTRACT:
Provided are a method and system for controlling impedance in a transconductance amplifier. A system includes a first transconductance amplifier and a second transconductance amplifier configured to control electrical characteristics associated with the first transconductance amplifier. An operational amplifier is provided and has at least one input port connected to the second transconductance amplifier. Also included is a first digital to analog converter (DAC) connected to receive a current signal from the operational amplifier.

REFERENCES:
patent: 6094093 (2000-07-01), Karanicolas
patent: 6326838 (2001-12-01), Kimura et al.
patent: 6480064 (2002-11-01), Cyrusian
patent: 6590431 (2003-07-01), Das et al.
patent: 6737919 (2004-05-01), Cyrusian
patent: 2003/0034849 (2003-02-01), Sanduleanu
patent: 2002-198755 (2002-12-01), None

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