Digital potentiometer architecture with multiple string...

Details Digital potentiometer architecture with multiple string... Digital potentiometer architecture with multiple string...

2011-07-19

2011-07-19

Lee, Kyung (Department: 2833)

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

C338S185000, C338S190000, C341S144000, C341S154000

Reexamination Certificate

active

07982581

ABSTRACT:
Digital potentiometer architecture is disclosed, composing of an integrated circuit containing multiple string arrays, each having a plurality of switching devices and an array of resistors. The insertion of an additional string array between the input terminals and the wiper, allows for the disconnection of a common string array and for the independent calibration of the resistance between each input terminal and the wiper.

REFERENCES:
patent: 4016483 (1977-04-01), Rudin
patent: 6414616 (2002-07-01), Dempsey
patent: 2002/0135458 (2002-09-01), Drori et al.

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