Digitally controllable on-chip resistors and methods

Details Digitally controllable on-chip resistors and methods Digitally controllable on-chip resistors and methods

2007-05-08

2009-10-13

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S118000, C341S120000, C341S144000

Reexamination Certificate

active

07602327

ABSTRACT:
A digitally controllable resistor includes a substrate and at least one digitally controllable resistance stage formed on the substrate. Each of the stage(s) can include a first resistor connected in series with a switch and a second resistor connected in parallel with the first resistor and the switch. Each stage can also include a control line connected to the switch for opening and closing the switch in response to a control bit associated therewith. Multiple resistance stages can be connected in series and the digitally controllable variable resistor can be integrated onto a substrate.

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