Institute of Microelectronics

Publications - Prof. Dr.-Ing. M. Ortmanns

Papers  Books  Patents 

Papers

2024

410.
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
DOI:10.1109/TCSI.2024.3476534
409.
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
DOI:10.1109/NewCAS58973.2024.10666354
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
DOI:10.1109/ICECS58634.2023.10382904
393.
Driemeyer, B.; Kässer, P.; Mandry, H.; Wiens, D.-P.; Ortmanns, M.
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
December 2023
DOI:10.1109/ICECS58634.2023.10382899
392.
Driemeyer, B.; Kässer, P.; Ortmanns, M.
Optimum Position of Digital DAC Error Correction relative to the Decimation Filter in ΔΣ ADCs
30th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Istanbul, Turkiye
December 2023
DOI:10.1109/ICECS58634.2023.10382885
391.
Wiens, D.-P.; Sporer, M.; Driemeyer, B.; Ortmanns, M.
A Mixed-Signal Integrator-Differentiator-TIA
IEEE Transactions on Circuits and Systems--II: Express Briefs
September 2023
DOI:10.1109/TCSII.2023.3318725
390.
Kässer, P.; Ismail, O.; Wagner, J.; Fischer, R.; Ortmanns, M.
Frequency-Domain Analysis of Reconfigured Incremental ΔΣ ADCs on the Example of the Exponential Phase
IEEE Transactions on Circuits and Systems I: Regular Papers
September 2023
DOI:10.1109/TCSI.2023.3310655
389.
Mokhtar, M. A.; Ismail, O.; Vogelmann, P.; Kauffman, J. G.; Ortmanns, M.
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
September 2023
DOI:10.1109/ESSCIRC59616.2023.10268735
388.
Ungethüm, J.; Pietzko, M.; Abdelaal, A.; Kauffman, J. G.; Ortmanns, M.
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)
September 2023
DOI:10.1109/ESSCIRC59616.2023.10268704
387.
Jang, MH.; Tang, X.; Lim, Y.; Kauffman, J. G.; Sun, L.; Ortmanns, M.; Chae, Y.
Design Techniques for Energy Efficient Analog-to-Digital Converters
IEEE Open Journal of the Solid-State Circuits Society
September 2023
DOI:10.1109/OJSSCS.2023.3311418
386.
Chae, Y.; Lopez, C. M.; Makinwa, K. A. A.; Ortmanns, M.; Sansen, W.
A Glimpse of the History of Analog ICs: A Tale of Amplifiers, Data Converters, and Sensor Interfaces
IEEE Solid-State Circuits Magazine
August 2023
DOI:10.1109/MSSC.2023.3282557

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
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
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
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
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

2007

4.
Ortmanns, M.; Buhmann, A.; Manoli, Y.
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

2005

2.
Ortmanns, M.; Gerfers, F.
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

Patents

  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