Papers
2025
418.
Driemeyer,
B.;
Mandry,
H.;
Wiens,
D.-P.;
Becker,
J.;
Kauffman,
J. G.;
Ortmanns,
M.
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
February 2025
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
February 2025
417.
Mayer,
M.;
Reich,
S.;
Mandry,
H.;
Ortmanns,
M.
A Rapid-Prototyping Platform for Active Stents Utilizing Device Decapsulation for Miniaturization
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
January 2025
A Rapid-Prototyping Platform for Active Stents Utilizing Device Decapsulation for Miniaturization
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
January 2025
| DOI: | 10.1109/ICECS61496.2024.10848908 |
416.
Mandry,
H.;
Driemeyer,
B.;
Becker,
J.;
Ortmanns,
M.
Investigation of the Influence of Multi-Valued Symbol Extraction on PUF Randomness
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
January 2025
Investigation of the Influence of Multi-Valued Symbol Extraction on PUF Randomness
31st IEEE International Conference on Electronics, Circuits and Systems (ICECS)
January 2025
| DOI: | 10.1109/ICECS61496.2024.10849251 |
415.
Aziz,
M.;
Kässer,
P.;
Ibrahim,
S.;
Ortmanns,
M.
A Comparative Study of Incremental ΔΣ Analog-to-Digital Converter Architectures with Extended Order and Resolution
MDPI Electronics 2025, 14, 372
January 2025
A Comparative Study of Incremental ΔΣ Analog-to-Digital Converter Architectures with Extended Order and Resolution
MDPI Electronics 2025, 14, 372
January 2025
| DOI: | 10.3390/electronics14020372 |
414.
Mandry,
H.;
Ruchti,
J.;
Nowakowski,
J.;
Pehl,
M.;
Ortmanns,
M.
Protection of Oscillator-Based PUFs against Side Channel Analyses by Random Interruption
IACR Transactions on Cryptographic Hardware and Embedded Systems, Vol. 2025 No. 2, 460-488
2025
Protection of Oscillator-Based PUFs against Side Channel Analyses by Random Interruption
IACR Transactions on Cryptographic Hardware and Embedded Systems, Vol. 2025 No. 2, 460-488
2025
| DOI: | 10.46586/tches.v2025.i2.460-488 |
2024
413.
Sporer,
M.;
Graber,
N.;
Mayer,
M.;
Reich,
S.;
Stieglitz,
T.;
Ortmanns,
M.
An ultra-miniaturized Neural Recording μASIC for the NeuroBus Implant
IEEE Biomedical Circuits and Systems Conference (BioCAS), Xi'an, China, pp. 1-5
December 2024
An ultra-miniaturized Neural Recording μASIC for the NeuroBus Implant
IEEE Biomedical Circuits and Systems Conference (BioCAS), Xi'an, China, pp. 1-5
December 2024
| DOI: | 10.1109/BioCAS61083.2024.10798303 |
412.
Conrad,
J.;
Wilhelmstätter,
S.;
Asthana,
R.;
Belagiannis,
V.;
Ortmanns,
M.
Differentiable Cost Model for Neural-Network Accelerator Regarding Memory Hierarchy
IEEE Transactions on Circuits and Systems I: Regular Papers ( Early Access )
October 2024
Differentiable Cost Model for Neural-Network Accelerator Regarding Memory Hierarchy
IEEE Transactions on Circuits and Systems I: Regular Papers ( Early Access )
October 2024
| DOI: | 10.1109/TCSI.2024.3476534 |
411.
Conrad,
J.;
Kauffman,
J. G.;
Wilhelmstätter,
S.;
Asthana,
R.;
Belagiannis,
V.;
Ortmanns,
M.
Confidence Estimation and Boosting for Dynamic-Comparator Transient-Noise Analysis
22nd IEEE Interregional NEWCAS Conference (NEWCAS)
September 2024
Confidence Estimation and Boosting for Dynamic-Comparator Transient-Noise Analysis
22nd IEEE Interregional NEWCAS Conference (NEWCAS)
September 2024
| DOI: | 10.1109/NewCAS58973.2024.10666354 |
410.
Abdelaal,
A.;
Pietzko,
M.;
Kauffman,
J. G.;
Jain,
A.;
Ortmanns,
M.
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)
August 2024
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)
August 2024
| DOI: | 10.1109/TCSI.2024.3448224 |
409.
Abdelaal,
A.;
Pietzko,
M.;
Ungethüm,
J.;
Kauffman,
J. G.;
Ortmanns,
M.
Using Negative-R Assisted Integrators in Wide-band Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
July 2024
Using Negative-R Assisted Integrators in Wide-band Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
July 2024
| DOI: | 10.1109/ISCAS58744.2024.10558442 |
408.
Wilhelmstätter,
S.;
Conrad,
J.;
Upadhyaya,
D.;
Polian,
I.;
Ortmanns,
M.
Enabling Power Side-Channel Attack Simulation on Mixed-Signal Neural Network Accelerators
IEEE International Conference on Omni-Layer Intelligent Systems (COINS), London, UK
July 2024
Enabling Power Side-Channel Attack Simulation on Mixed-Signal Neural Network Accelerators
IEEE International Conference on Omni-Layer Intelligent Systems (COINS), London, UK
July 2024
407.
Dalla Longa,
M.;
Conzatti,
F.;
Ismail,
O.;
Kauffman,
J. G.;
Ortmanns,
M.
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
June 2024
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
June 2024
| DOI: | 10.1109/VLSITechnologyandCir46783.2024.10631405 |
406.
Wiens,
D.-P.;
Driemeyer,
B.;
Ortmanns,
M.
A Mixed-Signal TIA with Input Restoring ADC
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
A Mixed-Signal TIA with Input Restoring ADC
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
| DOI: | 10.1109/ISCAS58744.2024.10557979 |
405.
Kässer,
P.;
Ismail,
O.;
Wiens,
D.-P.;
Ortmanns,
M.
Offset Cancellation in Incremental ∆Σ ADCs
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
Offset Cancellation in Incremental ∆Σ ADCs
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
| DOI: | 10.1109/ISCAS58744.2024.10557952 |
404.
Kässer,
P.;
Kaltenstadler,
S.;
Conrad,
J.;
Wagner,
J.;
Ismail,
O.;
Ortmanns,
M.
Stability Prediction of Δ∑ Modulators using Artificial Neural Networks
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
Stability Prediction of Δ∑ Modulators using Artificial Neural Networks
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
| DOI: | 10.1109/ISCAS58744.2024.10557868 |
403.
Pietzko,
M.;
Ungethüm,
J.;
Abdelaal,
A.;
Kauffman,
J. G.;
Ortmanns,
M.
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
May 2024
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
May 2024
| DOI: | 10.1109/ISCAS58744.2024.10558087 |
402.
Driemeyer,
B.;
Mandry,
H.;
Wiens,
D.-P.;
Becker,
J.;
Ortmanns,
M.
Optimisation of RO-PUF Design Parameters for Minimising the Effective Area per PUF Bit
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
Optimisation of RO-PUF Design Parameters for Minimising the Effective Area per PUF Bit
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
May 2024
| DOI: | 10.1109/ISCAS58744.2024.10558478 |
401.
Conrad,
J.;
Wilhelmstätter,
S.;
Asthana,
R.;
Belagiannis,
V.;
Ortmanns,
M.
Too-Hot-to-Handle: Insights into Temperature and Noise Hyperparameters for Differentiable Neural-Architecture-Searches
6th IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), Abu-Dhabi, UAE
April 2024
Too-Hot-to-Handle: Insights into Temperature and Noise Hyperparameters for Differentiable Neural-Architecture-Searches
6th IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), Abu-Dhabi, UAE
April 2024
| DOI: | 10.1109/AICAS59952.2024.10595971 |
400.
Kässer,
P.;
Wagner,
J.;
Ismail,
O.;
Ortmanns,
M.
Inner Transfer Functions in Incremental ΔΣ ADCs
IEEE Transactions on Circuits and Systems II: Express Briefs
April 2024
Inner Transfer Functions in Incremental ΔΣ ADCs
IEEE Transactions on Circuits and Systems II: Express Briefs
April 2024
| DOI: | 10.1109/TCSII.2024.3390397 |
399.
Wilhelmstätter,
S.;
Conrad,
J.;
Upadhyaya,
D.;
Polian,
I.;
Ortmanns,
M.
Attacking a Joint Protection Scheme for Deep Neural Network Hardware Accelerators and Models
6th IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), Abu Dhabi, UAE
April 2024
Attacking a Joint Protection Scheme for Deep Neural Network Hardware Accelerators and Models
6th IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), Abu Dhabi, UAE
April 2024
| DOI: | 10.1109/AICAS59952.2024.10595935 |
398.
Ismail,
O.;
Kässer,
P.;
Kauffman,
J. G.;
Ortmanns,
M.
Non-Ideal Reset in Incremental Delta-Sigma ADCs
IEEE 22nd Interregional NEWCAS Conference Sherbrooke, Quebec, Canada
April 2024
Non-Ideal Reset in Incremental Delta-Sigma ADCs
IEEE 22nd Interregional NEWCAS Conference Sherbrooke, Quebec, Canada
April 2024
397.
Asthana,
R.;
Conrad,
J.;
Dawoud,
Y.;
Ortmanns,
M.;
Belagiannis,
V.
Multi-conditioned Graph Diffusion for Neural Architecture Search
Transactions on Machine Learning Research
March 2024
ISSN: 2835-8856
Multi-conditioned Graph Diffusion for Neural Architecture Search
Transactions on Machine Learning Research
March 2024
ISSN: 2835-8856
| Weblink: | https://openreview.net/forum?id=5VotySkajV |
396.
Sporer,
M.;
Vasilaș,
I.-G.;
Adžemović,
A.;
Graber,
N.;
Reich,
S.;
Gueli,
C.;
Eickenscheidt,
M.;
Diester,
I.;
Stieglitz,
T.;
Ortmanns,
M.
NeuroBus - Architecture for an Ultra-Flexible Neural Interface
IEEE Transactions on Biomedical Circuits and Systems ( Early Access ), Pages: 1 - 16
January 2024
NeuroBus - Architecture for an Ultra-Flexible Neural Interface
IEEE Transactions on Biomedical Circuits and Systems ( Early Access ), Pages: 1 - 16
January 2024
| DOI: | 10.1109/TBCAS.2024.3354785 |
395.
Ismail,
O.;
Kässer,
P.;
Kauffman,
J. G.;
Ortmanns,
M.
DAC Element Mismatch Shaping Algorithms in Incremental Delta-Sigma ADCs
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
January 2024
DAC Element Mismatch Shaping Algorithms in Incremental Delta-Sigma ADCs
IEEE International Symposium on Circuits and Systems (ISCAS), Singapore
January 2024
| DOI: | 10.1109/ISCAS58744.2024.10558337 |
2023
394.
Kässer,
P.;
Wagner,
J.;
Ismail,
O.;
Driemeyer,
B.;
Ortmanns,
M.
Quantizer Gain in Incremental Delta-Sigma ADCs
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, pp. 1-4
December 2023
Quantizer Gain in Incremental Delta-Sigma ADCs
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, pp. 1-4
December 2023
| DOI: | 10.1109/ICECS58634.2023.10382904 |
Books
2023
9.
Chan,
C.-H.;
Zhu,
Y.;
Qi,
L.;
Sin,
S.-W.;
Ortmanns,
M.;
Martins,
R. P.
High-Performance Oversampling ADCs
Paulo da Silva Martins, R., Mak, PI. (eds) Analog and Mixed-Signal Circuits in Nanoscale CMOS. Analog Circuits and Signal Processing. Springer, Cham. Edition
January 2023
High-Performance Oversampling ADCs
Paulo da Silva Martins, R., Mak, PI. (eds) Analog and Mixed-Signal Circuits in Nanoscale CMOS. Analog Circuits and Signal Processing. Springer, Cham. Edition
January 2023
| DOI: | doi.org/10.1007/978-3-031-22231-3_5 |
2021
8.
Haas,
M.;
Ortmanns,
M.
Neural Stimulation Circuits
Publisher: River Publishers
Selected Topics in Biomedical Circuits and Systems, Eds Minkyu Je and Myung Hoon Sunwoo Edition
February 2021
Neural Stimulation Circuits
Publisher: River Publishers
Selected Topics in Biomedical Circuits and Systems, Eds Minkyu Je and Myung Hoon Sunwoo Edition
February 2021
| ISBN: | 9788770221481 |
2019
7.
Vogelmann,
P.;
Mokhtar,
M. A.;
Luo,
Y.;
Ortmanns,
M.
Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits: Advances in Analog Circuit Design 2019
Publisher: Springer
2019
Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits: Advances in Analog Circuit Design 2019
Publisher: Springer
2019
| ISBN: | 978-3030252663 |
2016
6.
Ortmanns,
M.;
Ritter,
R.;
Chi,
J.
ΣΔ ADCs with Improved Interferer Robustness
Volume Wideband Continuous-time SD-ADCs, Automotive Electronics, and Power Management: Advances in Analog Circuit Design 2016
Publisher: Springer
2016
ΣΔ ADCs with Improved Interferer Robustness
Volume Wideband Continuous-time SD-ADCs, Automotive Electronics, and Power Management: Advances in Analog Circuit Design 2016
Publisher: Springer
2016
| ISBN: | 978-3319416694 |
2014
5.
Brückner,
T.;
Ortmanns,
M.
Automated Design of High-Speed Continuous-Time Sigma-Delta Modulators employing Compensation and Correction of Non-Idealities, in High-Performance AD and DA Converters, IC Design in Scaled Technologies, and Time-Domain Signal Processing
Publisher: Springer
2014
Automated Design of High-Speed Continuous-Time Sigma-Delta Modulators employing Compensation and Correction of Non-Idealities, in High-Performance AD and DA Converters, IC Design in Scaled Technologies, and Time-Domain Signal Processing
Publisher: Springer
2014
2007
4.
Ortmanns,
M.;
Buhmann,
A.;
Manoli,
Y.
Interface Circuits in Comprehensive Microsystems
Publisher: Elsevier Pubs.
2007
Interface Circuits in Comprehensive Microsystems
Publisher: Elsevier Pubs.
2007
2006
3.
Buhmann,
A.;
Keller,
M.;
Ortmanns,
M.;
Gerfers,
F.;
Manoli,
Y.
Time-Continuous Delta-Sigma A/D Converters - From Theory to Practical Implementation
Publisher: in Advanced Signal Processing, Circuits, and Systems Design Techniques for Communications, (eds. Paliouras, V.; Stouraitis, Th.; Ioinovici, A.)
2006
Time-Continuous Delta-Sigma A/D Converters - From Theory to Practical Implementation
Publisher: in Advanced Signal Processing, Circuits, and Systems Design Techniques for Communications, (eds. Paliouras, V.; Stouraitis, Th.; Ioinovici, A.)
2006
2005
2.
Ortmanns,
M.;
Gerfers,
F.
Continuous-Time Sigma-Delta A/D Conversion, Fundamentals, Error Correction and Robust Implementations
Publisher: Springer Pubs.
2005
Continuous-Time Sigma-Delta A/D Conversion, Fundamentals, Error Correction and Robust Implementations
Publisher: Springer Pubs.
2005
2003
1.
Ortmanns,
M.
Error Compensation in Continuous-Time Sigma-Delta A/D Converters
Publisher: PhD Thesis, Albert-Ludwigs-University Freiburg
2003
Error Compensation in Continuous-Time Sigma-Delta A/D Converters
Publisher: PhD Thesis, Albert-Ludwigs-University Freiburg
2003
Patents
- A. Herkle, J. Becker, M. Ortmanns
[DE] Verfahren und Vorrichtung zur Erzeugung einer digitalen Signatur
DE102016204055A1, Patent record available from the German Patent
2016 - R. Ritter, M. Schimper, W. Schelmbauer, M. Ortmanns
Analog-to-digital converter, signal processor, and method for analog-to-digital conversion.
US8760330, Patent record available from the US Patent Office
2014 - A. Rocke, M. Ortmanns und N. Unger
Device for controlling the electric charge on stimulation electrodes.
EP1827591, Patent record available from the European Patent
2007 - M. Ortmanns, Y. Manoli und F. Gerfers
Controlled power source, in particular for a digital/analogue converter in continuous time sigma/delta modulators.
EP1550222, Patent record available from the European Patent
2005 - A. Rocke, M. Ortmanns und N. Unger
Device for controlling the electric charge on stimulation electrodes.
WO06063743, Patent record available from the World Intellectual Property Organization (WIPO)
2006 - M. Ortmanns und Y. Manoli
Method for the characterisation of and for the automatic correction of linear errors in analog/digital converters.
WO05078936, Patent record available from the World Intellectual Property Organization (WIPO)
2005 - M. Ortmanns, Y. Manoli und F. Gerfers
Controlled power source, in particular for a digital/analogue converter in continuous time sigma/delta modulators.
WO04034588, Patent record available from the World Intellectual Property Organization (WIPO)
2004 - M. Ortmanns, Y. Manoli und F. Gerfers
Controlled current source, in particular for digital/analogue converters in continuous-time sigma/delta modulators.
US7151474, Patent record available from the US Patent Office
2006 - M. Ortmanns, Y. Manoli und F. Gerfers
Controlled power source, in particular for a digital/analogue converter in continuous time sigma delta modulators.
US20060055580, Patent record available from the US Patent Office
2006