Institut für Mikroelektronik

Publikationen - Prof. Dr.-Ing. M. Ortmanns

Artikel  Bücher  Patente

Artikel

2025

417.
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.
416.
M. Mayer, S. Reich, H. Mandry and M. Ortmanns, "A Rapid-Prototyping Platform for Active Stents Utilizing Device Decapsulation for Miniaturization", 31st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Jan. 2025.
DOI:10.1109/ICECS61496.2024.10848908
415.
H. Mandry, B. Driemeyer, J. Becker and M. Ortmanns, "Investigation of the Influence of Multi-Valued Symbol Extraction on PUF Randomness", 31st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Jan. 2025.
DOI:10.1109/ICECS61496.2024.10849251
414.
M. Aziz, P. Kässer, S. Ibrahim and M. Ortmanns, "A Comparative Study of Incremental ΔΣ Analog-to-Digital Converter Architectures with Extended Order and Resolution", MDPI Electronics 2025, 14, 372, Jan. 2025.
DOI:10.3390/electronics14020372
413.
J. Conrad, S. Wilhelmstätter, R. Asthana, V. Belagiannis and M. Ortmanns, "Differentiable Cost Model for Neural-Network Accelerator Regarding Memory Hierarchy", IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 72, no. 1, pp. 351-364, Jan. 2025.
DOI:10.1109/TCSI.2024.3476534

2024

412.
M. Sporer, N. Graber, M. Mayer, S. Reich, T. Stieglitz and M. Ortmanns, "An ultra-miniaturized Neural Recording μASIC for the NeuroBus Implant", IEEE Biomedical Circuits and Systems Conference (BioCAS), Xi'an, China, pp. 1-5, Dez. 2024.
DOI:10.1109/BioCAS61083.2024.10798303
411.
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
410.
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
409.
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
408.
S. Wilhelmstätter, J. Conrad, D. Upadhyaya, I. Polian and M. Ortmanns, "Enabling Power Side-Channel Attack Simulation on Mixed-Signal Neural Network Accelerators", IEEE International Conference on Omni-Layer Intelligent Systems (COINS), London, UK, Jul. 2024.
407.
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
406.
D. -. Wiens, B. Driemeyer and M. Ortmanns, "A Mixed-Signal TIA with Input Restoring ADC", IEEE International Symposium on Circuits and Systems (ISCAS), Singapore, Mai 2024.
DOI:10.1109/ISCAS58744.2024.10557979
405.
P. Kässer, O. Ismail, D. -. Wiens and M. Ortmanns, "Offset Cancellation in Incremental ∆Σ ADCs", IEEE International Symposium on Circuits and Systems (ISCAS), Singapore, Mai 2024.
DOI:10.1109/ISCAS58744.2024.10557952
404.
P. Kässer, S. Kaltenstadler, J. Conrad, J. Wagner, O. Ismail and M. Ortmanns, "Stability Prediction of Δ∑ Modulators using Artificial Neural Networks", IEEE International Symposium on Circuits and Systems (ISCAS), Singapore, Mai 2024.
DOI:10.1109/ISCAS58744.2024.10557868
403.
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
402.
B. Driemeyer, H. Mandry, D. -. Wiens, J. Becker and M. Ortmanns, "Optimisation of RO-PUF Design Parameters for Minimising the Effective Area per PUF Bit", IEEE International Symposium on Circuits and Systems (ISCAS), Singapore, Mai 2024.
DOI:10.1109/ISCAS58744.2024.10558478
401.
J. Conrad, S. Wilhelmstätter, R. Asthana, V. Belagiannis and M. Ortmanns, "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, Apr. 2024.
DOI:10.1109/AICAS59952.2024.10595971
400.
P. Kässer, J. Wagner, O. Ismail and M. Ortmanns, "Inner Transfer Functions in Incremental ΔΣ ADCs", IEEE Transactions on Circuits and Systems II: Express Briefs, Apr. 2024.
DOI:10.1109/TCSII.2024.3390397
399.
S. Wilhelmstätter, J. Conrad, D. Upadhyaya, I. Polian and M. Ortmanns, "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, Apr. 2024.
DOI:10.1109/AICAS59952.2024.10595935
398.
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.
397.
R. Asthana, J. Conrad, Y. Dawoud, M. Ortmanns and V. Belagiannis, "Multi-conditioned Graph Diffusion for Neural Architecture Search", Transactions on Machine Learning Research, Mä. 2024. https://openreview.net/forum?id=5VotySkajV.
Weblink:https://openreview.net/forum?id=5VotySkajV
396.
M. Sporer, I. -. Vasilaș, A. Adžemović, N. Graber, S. Reich, C. Gueli, M. Eickenscheidt, I. Diester, T. Stieglitz and M. Ortmanns, "NeuroBus - Architecture for an Ultra-Flexible Neural Interface", IEEE Transactions on Biomedical Circuits and Systems ( Early Access ), Pages: 1 - 16, Jan. 2024.
DOI:10.1109/TBCAS.2024.3354785
395.
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

394.
P. Kässer, J. Wagner, O. Ismail, B. Driemeyer and M. Ortmanns, "Quantizer Gain in Incremental Delta-Sigma ADCs", 30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, pp. 1-4, Dez. 2023.
DOI:10.1109/ICECS58634.2023.10382904
393.
B. Driemeyer, P. Kässer, H. Mandry, D. -. Wiens and M. Ortmanns, "A Feasibility Study on a Switched-Capacitor Based PUF in 28 nm Technology", 30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye, Dez. 2023.
DOI:10.1109/ICECS58634.2023.10382899

Bücher

2026

11.
Ortmanns, M.; Kässer, P.; Wagner, J.
Incremental Delta-Sigma ADCs
Herausgeber: Springer Cham
März 2026
DOI:10.1007/978-3-032-09468-1
ISBN:978-3-032-09467-4

2025

10.
Buhmann, A.; Lanniel, A.; Hiller, T.; Sporer, M.; Reich, S.; Ortmanns, M.
Interface Circuits
Herausgeber: Ed. Elsevier
in Comprehensive Microsystems, 2nd ed., Y. B. Gianchandani, Volume 1, 2025, pp. 452–479 Edition
2025
DOI:10.1016/B978-0-323-95478-5.00040-6

2023

9.
Chan, C.-H.; Zhu, Y.; Qi, L.; Sin, S.-W.; Ortmanns, M.; Martins, R. P.
High-Performance Oversampling ADCs
Herausgeber: Springer, Cham
Paulo da Silva Martins, R., Mak, PI. (eds) Analog and Mixed-Signal Circuits in Nanoscale CMOS. Analog Circuits and Signal Processing. Springer, Cham. Edition
Januar 2023
DOI:10.1007/978-3-031-22231-3_5
ISBN:978-3-031-22230-6

2021

8.
Haas, M.; Ortmanns, M.
Neural Stimulation Circuits
Herausgeber: River Publishers
Selected Topics in Biomedical Circuits and Systems, Eds Minkyu Je and Myung Hoon Sunwoo Edition
Februar 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
Herausgeber: Springer
2019
ISBN:978-3030252663

2016

6.
Ortmanns, M.; Ritter, R.; Chi, J.
ΣΔ ADCs with Improved Interferer Robustness
Band Wideband Continuous-time SD-ADCs, Automotive Electronics, and Power Management: Advances in Analog Circuit Design 2016
Herausgeber: 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
Herausgeber: Springer
2014

2007

4.
Ortmanns, M.; Buhmann, A.; Manoli, Y.
Interface Circuits in Comprehensive Microsystems
Herausgeber: 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
Herausgeber: 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
Herausgeber: Springer Pubs.
2005

2003

1.
Ortmanns, M.
Error Compensation in Continuous-Time Sigma-Delta A/D Converters
Herausgeber: PhD Thesis, Albert-Ludwigs-University Freiburg
2003

Patente

  1. A. Herkle, J. Becker, M. Ortmanns
    [DE] Verfahren und Vorrichtung zur Erzeugung einer digitalen Signatur
    DE102016204055A1, Patent record available from the German Patent
    2016

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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