Artikel
2025
51.
O. Ismail,
P. Kässer,
M. Sporer,
J. G. Kauffman and
M. Ortmanns,
"Incremental ∆Σ ADCs without Periodic Reset",
IEEE International Symposium on Circuits and Systems (ISCAS), London, United Kingdom, pp. 1-5,
Mai
2025.
| DOI: | 10.1109/ISCAS56072.2025.11043980 |
50.
M. Dalla Longa,
F. Conzatti,
O. Ismail,
A. Abdelaal,
J. G. Kauffman and
M. Ortmanns,
"A 470-μW, 102.6-dB DR, 20-kHz BW Calibration-Free ΔΣ Modulator With SFDR in Excess of 110 dBc Using an Intrinsically Linear 13-Level DAC",
IEEE Journal of Solid-State Circuits ( Early Access ), Page(s): 1 - 0,
Apr.
2025.
| DOI: | 10.1109/JSSC.2025.3553310 |
49.
D. -. Wiens,
A. Abdelaal,
B. Driemeyer,
J. Becker,
J. G. Kauffman and
M. Ortmanns,
"A Direct Digitizing, 1MHz Bandwidth, 28fA/√Hz Current Sensing Front-End Based on a Mixed-Signal Integrator-Differentiator TIA in 28nm CMOS",
IEEE Custom Integrated Circuits Conference (CICC), Boston, MA, USA,
Apr.
2025.
| DOI: | 10.1109/CICC63670.2025.10983397 |
48.
B. Driemeyer,
H. Mandry,
D. -. Wiens,
J. Becker,
J. G. Kauffman and
M. Ortmanns,
"17.5 An Eye-Opening Arbiter PUF for Fingerprint Generation Using Auto-Error Detection for PVT-Robust Masking and Bit Stabilization Achieving a BER of 2e-8 in 28nm CMOS",
IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA,
Feb.
2025.
2024
47.
J. Conrad,
J. G. Kauffman,
S. Wilhelmstätter,
R. Asthana,
V. Belagiannis and
M. Ortmanns,
"Confidence Estimation and Boosting for Dynamic-Comparator Transient-Noise Analysis",
22nd IEEE Interregional NEWCAS Conference (NEWCAS),
Sep.
2024.
| DOI: | 10.1109/NewCAS58973.2024.10666354 |
46.
A. Abdelaal,
M. Pietzko,
J. G. Kauffman,
A. Jain and
M. Ortmanns,
"ΔΣ Modulators Employing MASH DSM DAC-Based Dual Quantization",
IEEE Transactions on Circuits and Systems I: Regular Papers ( Volume: 72, Issue: 1, Page(s) 71-84, January 2025),
Aug.
2024.
| DOI: | 10.1109/TCSI.2024.3448224 |
45.
A. Abdelaal,
M. Pietzko,
J. Ungethüm,
J. G. Kauffman and
M. Ortmanns,
"Using Negative-R Assisted Integrators in Wide-band Delta-Sigma Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore,
Jul.
2024.
| DOI: | 10.1109/ISCAS58744.2024.10558442 |
44.
M. Dalla Longa,
F. Conzatti,
O. Ismail,
J. G. Kauffman and
M. Ortmanns,
"A 470μW, 102.6dB-DR, 20kHz BW Calibration-Free ΔΣ Modulator with SFDR in Excess of 110dBc using an Intrinsically Linear 13-Level DAC",
IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits), Honolulu, HI, USA, 2024, pp. 1-2,
Jun.
2024.
| DOI: | 10.1109/VLSITechnologyandCir46783.2024.10631405 |
43.
M. Pietzko,
J. Ungethüm,
A. Abdelaal,
J. G. Kauffman and
M. Ortmanns,
"A 600MS/s 10-bit SAR ADC with unit via-based delta-length C-DAC in 22nm FDSOI",
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore,
Mai
2024.
| DOI: | 10.1109/ISCAS58744.2024.10558087 |
42.
O. Ismail,
P. Kässer,
J. G. Kauffman and
M. Ortmanns,
"Non-Ideal Reset in Incremental Delta-Sigma ADCs",
IEEE 22nd Interregional NEWCAS Conference Sherbrooke, Quebec, Canada,
Apr.
2024.
41.
O. Ismail,
P. Kässer,
J. G. Kauffman and
M. Ortmanns,
"DAC Element Mismatch Shaping Algorithms in Incremental Delta-Sigma ADCs",
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore,
Jan.
2024.
| DOI: | 10.1109/ISCAS58744.2024.10558337 |
2023
40.
M. A. Mokhtar,
O. Ismail,
P. Vogelmann,
J. G. Kauffman and
M. Ortmanns,
"A 40 kS/sCalibration-Free Incremental △Σ ADC Achieving 104 dB DR and 105.7 dB SFDR",
ESSCIRC 2023- IEEE 49th European Solid State Circuits Conference (ESSCIRC), Lisbon, Portugal, pp. 401-404,
Sep.
2023.
| DOI: | 10.1109/ESSCIRC59616.2023.10268735 |
39.
J. Ungethüm,
M. Pietzko,
A. Abdelaal,
J. G. Kauffman and
M. Ortmanns,
"A Chopped 6-bit 1.6 GS/s SAR ADC Utilizing Slow Decision Information in 22 nm FDSOI",
ESSCIRC 2023- IEEE 49th European Solid State Circuits Conference (ESSCIRC),
Sep.
2023.
| DOI: | 10.1109/ESSCIRC59616.2023.10268704 |
38.
M. Jang,
X. Tang,
Y. Lim,
J. G. Kauffman,
L. Sun,
M. Ortmanns and
Y. Chae,
"Design Techniques for Energy Efficient Analog-to-Digital Converters",
IEEE Open Journal of the Solid-State Circuits Society,
Sep.
2023.
| DOI: | 10.1109/OJSSCS.2023.3311418 |
37.
M. Pietzko,
J. Spiess,
J. Ungethüm,
J. G. Kauffman,
Q. Li and
M. Ortmanns,
"Bitwise ELD Compensation under Integrator Nonidealities in ΔΣ Modulators",
21st IEEE Interregional NEWCAS Conference (NEWCAS), Edinburgh, United Kingdom,
Jun.
2023.
| DOI: | 10.1109/NEWCAS57931.2023.10198050 |
36.
M. Pietzko,
J. Ungethüm,
J. G. Kauffman and
M. Ortmanns,
"Delay Error Shaping in ΔΣ Modulators Using Time-Interleaved High Resolution Quantizers",
IEEE Transactions on Circuits and Systems I: Regular Papers,
Mai
2023.
| DOI: | 10.1109/TCSI.2023.3269573 |
35.
M. Dalla Longa,
F. Conzatti,
T. Hofmann,
J. G. Kauffman and
M. Ortmanns,
"An Intrinsically Linear 13-Level Capacitive DAC for Delta Sigma Modulators",
IEEE Transactions on Circuits and Systems II: Express Briefs,
Apr.
2023.
| DOI: | doi.org/10.1109/TCSII.2022.3224878 |
2022
34.
M. A. Mokhtar,
A. Abdelaal,
M. Sporer,
J. Becker,
J. G. Kauffman and
M. Ortmanns,
"A 0.9-V DAC-Calibration-Free Continuous-Time Incremental Delta-Sigma Modulator Achieving 97-dB SFDR at 2 MS/s in 28-nm CMOS",
IEEE Journal of Solid-State Circuits, Volume: 57, Issue: 11,
Nov.
2022.
| DOI: | 10.1109/JSSC.2022.3160325 |
33.
M. Sporer,
S. Reich,
J. G. Kauffman and
M. Ortmanns,
"A Direct Digitizing Chopped Neural Recorder Using a Body-Induced Offset Based DC Servo Loop",
IEEE Transactions on Biomedical Circuits and Systems,
Jun.
2022.
| DOI: | 10.1109/TBCAS.2022.3177241 |
32.
M. Pietzko,
J. Ungethüm,
J. G. Kauffman,
Q. Li and
M. Ortmanns,
"Bitwise ELD Compensation in ∆Σ Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Austin, USA,
Mai
2022.
| DOI: | 10.1109/ISCAS48785.2022.9937305 |
31.
B. Driemeyer,
J. Spiess,
J. G. Kauffman and
M. Ortmanns,
"Complexity Reduced LUT-Based DAC Correction in Continuous-Time Delta-Sigma Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS),
Mai
2022.
| DOI: | 10.1109/ISCAS48785.2022.9937300 |
30.
J. Ungethüm,
M. Pietzko,
J. G. Kauffman,
Q. Li and
M. Ortmanns,
"Maximizing the Inter-Stage Gain in CT 0-X MASH Delta-Sigma-Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Austin, TX, USA,
Mai
2022.
| DOI: | 10.1109/ISCAS48785.2022.9937739 |
2021
29.
M. A. Mokhtar,
M. Merkle,
J. G. Kauffman and
M. Ortmanns,
"A Comparative Study of Noise Behavior in Single-Opamp Resonators in Delta-Sigma Modulators",
28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Dubai, UAE,
Nov.
2021.
28.
J. Ungethüm,
J. G. Kauffman and
M. Ortmanns,
"Digital Resolution Requirements in 0-X Mash Delta-Sigma-Modulators",
2021 IEEE International Conference on Electronics Circuits and Systems (ICECS),
Nov.
2021.
27.
J. Ungethüm,
J. G. Kauffman and
M. Ortmanns,
"Minimizing Signal-Dependent Residue in CT Pipelined ADCs",
2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS),
Aug.
2021.
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