Systems and methods for providing compact digitally...

Details Systems and methods for providing compact digitally... Systems and methods for providing compact digitally...

2007-02-06

2008-12-23

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Converter calibration or testing

Trimming control circuits

C341S145000, C341S154000

Reexamination Certificate

active

07468686

ABSTRACT:
A trimdac circuit for adjusting the output of a digital-to-analog converter (DAC) is provided. The trimdac may be used to adjust a plurality of resistor segments in the DAC. The trimdac may include a programmable Read Only Memory (ROM) or other suitable memory device. The ROM may include a plurality of multi-bit digital words. Each of the multi-bit digital words may control a plurality, and most preferably a pair of variable resistance circuits. Each of the pair of variable resistance circuits may adjust a resistor segment of the DAC.

REFERENCES:
patent: 5084667 (1992-01-01), Drori et al.
patent: 5666118 (1997-09-01), Gersbach
patent: 6201491 (2001-03-01), Brunolli et al.
patent: 7012555 (2006-03-01), Voicu et al.
patent: 2003/0011464 (2003-01-01), Eck et al.

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