Artikel
2012
8.
P. Witte,
J. G. Kauffman,
T. Brückner,
J. Becker and
M. Ortmanns,
"An Error Estimation Technique for Lowpass and Bandpass Delta-Sigma ADC Feedback DACs Using a Residual Test Signal",
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea,
Mai
2012.
7.
P. Witte,
J. G. Kauffman,
J. Becker,
Y. Manoli and
M. Ortmanns,
"A 72dB-DR Delta-Sigma CT Modulator Using Digitally Estimated Auxiliary DAC Linearization Achieving 88fJ/conv in a 25 MHz BW",
IEEE International Conference on Solid-State Circuits (ISSCC), San Francisco, USA,
Feb.
2012.
6.
D. Angele,
M. Stein,
J. G. Kauffman,
M. Ortmanns and
J. Becker,
"A reconfigurable Continuous-Time ΔΣ-ADC using a digitally programmable gm-C array",
IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS),
2012.
2011
5.
J. G. Kauffman,
P. Witte,
J. Becker and
M. Ortmanns,
"An 8.5 mW Continuous-Time Delta-Sigma Modulator With 25 MHz Bandwidth Using Digital Background DAC Linearization to Achieve 63.5 dB SNDR and 81 dB SFDR",
IEEE Journal of Solid-State Circuits,
Dez.
2011.
4.
P. Witte,
J. G. Kauffman,
J. Becker and
M. Ortmanns,
"Correlation Based Background Error Estimation Technique for Bandpass Delta-Sigma ADC DACs",
IEEE Trans. Circuits Syst. II, Express Briefs,
Nov.
2011.
3.
C. Chu,
J. G. Kauffman,
S. Anis and
M. Ortmanns,
"A 4-bit, 500M/s Flash Quantizer Using an Auto-Zeroing Offset Compensated Comparator in 250nm SiGe",
Kleinheubacher Tagung, Miltenberg, Germany,
Sep.
2011.
2.
P. Witte,
J. G. Kauffman,
J. Becker and
M. Ortmanns,
"A digital background correction for DAC nonlinearities in lowpass and bandpass delta-sigma modulators - theory and implementation",
The 9th Int. Conf. on Sampling Theory and Applications (SampTA), Singapore,
Mai
2011.
1.
J. G. Kauffman,
P. Witte,
J. Becker and
M. Ortmanns,
"An 8mW 50MS/s CT ΔΣ Modulator with 81dB SFDR and Digital Background DAC Linearization",
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA,
Feb.
2011.
Patente
- John G. Kauffman
Low supply class AB output amplifier
[US9859856B1], Intel IP Corp.
- Marco Bresciani, John G. Kauffman, Udo Schuetz, Patrick Torta, Francesco Conzatti
Sigma-delta analog-to-digital converter including loop filter having components for feedback digital-to-analog converter correction
[US9866227B1]
2016
- John G. Kauffman, Krzysztof Dufrene
Apparatus for overload recovery of an integrator in a sigma-delta modulator
[US9680496B2], Intel IP Corp.
2015
- John G. Kauffman, Udo Schuetz
Single amplifer bi-quad sigma-delta modulator
[US9559719B1], Intel IP Corp.
2015
- John G. Kauffman, Udo Schuetz
Apparatus for correcting linearity of a digital-to-analog converter
[US9509326B1], Intel IP Corp.
2015