Digital-to-analog converter (DAC) and an associated method

Details Digital-to-analog converter (DAC) and an associated method Digital-to-analog converter (DAC) and an associated method

2011-07-19

2011-07-19

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S138000

Reexamination Certificate

active

07982650

ABSTRACT:
The digital-to-analog converter in accordance with the present invention comprises an R-2R transistor-only ladder converter and a digital controller. The controller connects to the R-2R transistor-only ladder converter and comprises at least one regulating transistor and at least one shifting transistor. The at least one regulating transistor has an aspect ratio of kR(W/L). The at least one shifting transistor has an aspect ratio of kS(W/L). Setting the aspect ratios kR(W/L) and kS(W/L) of the shifting and regulating transistors adjusts a linear output current waveform to a non-linear waveform. The method to output a non-linear current comprises acts of determining an optimum non-linear output current, dividing a linear output current into multiple sections, determining slopes of the waveform of the output current, adding a controller corresponding to an R-2R transistor-only ladder converter, setting aspect ratios kR(W/L) of regulating transistors and setting an aspect ratios kS(W/L) of shifting transistors.

REFERENCES:
patent: 6795063 (2004-09-01), Endo et al.
patent: 7696909 (2010-04-01), Oberhuber

Affiliated with

Also associated with

Rating

Digital-to-analog converter (DAC) and an associated method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital-to-analog converter (DAC) and an associated method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital-to-analog converter (DAC) and an associated method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2678880