High-speed DAC linearity measurement

Coded data generation or conversion – Converter calibration or testing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C341S144000, C341S169000

Reexamination Certificate

active

07009538

ABSTRACT:
A high-speed digital-to-analog converter (DAC) measurement method acquires and quantizes an analog ramp output by the DAC corresponding to a digital ramp input to produce a quantized ramp, determines a start and end of the quantized ramp, obtains a difference between the quantized ramp and an ideal ramp to produce a quantized periodic signal (triangular or sinusoidal), determines a frequency for a qualified peak from an FFT of the quantized periodic signal, produces a mask filtered periodic signal from an iFFT around the qualified peak, and determines a sample window spanning a local maximum and minimum for each period of the quantized periodic signal. The ramp step levels are the averages of the samples within each sample window. From the step levels in DAC LSB's, resolution, monotonicity, differential lineary and integral linearity are determined for the DAC.

REFERENCES:
patent: 5661527 (1997-08-01), Ferguson
patent: 5712633 (1998-01-01), Bae
patent: 6140949 (2000-10-01), Tsay et al.
patent: 6177894 (2001-01-01), Yamaguchi

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High-speed DAC linearity measurement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-speed DAC linearity measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-speed DAC linearity measurement will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3571756

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.