Auto-adjustment of RC cells within a circuit

Details Auto-adjustment of RC cells within a circuit Auto-adjustment of RC cells within a circuit

2007-02-13

2007-02-13

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S076490

Reexamination Certificate

active

11301345

ABSTRACT:
An integrated circuit having a first couple of components R and C, at least a second couple of components R1–R3and C′1–C′2and a calibration circuit. The couple of componets form an RC cell of which one component is adjustable, and the calibration circuit. The invention corrects the errors in the values of the components of RC cells of the same nature. The calibration circuit performs the adjustment of an RC cell and then applies the same correction to the components of the other RC cells of the same nature.

REFERENCES:
patent: 6737851 (2004-05-01), Roo
patent: 2004/0169565 (2004-09-01), Gaggl et al.
patent: 2005/0270002 (2005-12-01), Woo
patent: 1 455 449 (2004-09-01), None
patent: 10341568 (1998-12-01), None
Hughes, J., et al: “Self-Tuned RC-Active Filters For VLSI,”Electronic Letters,22(19):993-994, Sep. 11, 1986.

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