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

Papers

2019

316.
Mandry, H.; Herkle, A.; Kürzinger, L.; Müelich, S.; Becker, J.; Fischer, R.; Ortmanns, M.
Modular PUF Coding Chain with High-Speed Reed-Muller Decoder
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
May 2019
315.
Luo, Y.; Jain, A.; Ortmanns, M.
A Multi-bit Delta-Sigma DAC Architecture with Internal DAC Non-linearity Suppression
Analogworkshop 2019, Universität Stuttgart
March 2019
314.
Qi, L.; Jain, A.; Jiang, D.; Sin, S.-W.; Martins, R. P.; Ortmanns, M.
A 76.6dB-SNDR 50MHz-BW 29.2mW Noise-Coupling-Assisted CT Sturdy MASH ΔΣ Modulator with 1.5b/4b Quantizers in 28nm CMOS
IEEE International Solid- State Circuits Conference - (ISSCC), San Francisco, USA
February 2019
313.
Vogelmann, P.; Wagner, J.; Haas, M.; Ortmanns, M.
A Dynamic Power Reduction Technique for Incremental ΔΣ Modulators
IEEE Journal of Solid-State Circuits
January 2019
312.
Häberle, M.; Djekic, D.; Rajabzadeh, M.; Fantner, G.; Lips, K.; Ortmanns, M.; Anders, J.
Comparison of Different Precision Pseudo Resistor Realizations in the DC-Feedback of Capacitive Transimpedance Amplifiers
IEEE International Conference on Electronics Circuits and Systems (ICECS 2019), Genova, Italy pp. 699-702
2019
DOI:10.1109/ICECS46596.2019.8965196
311.
Lanniel, A.; Boeser, T.; Aichholz, L.; Alpert, T.; Ortmanns, M.
Impact of Parasitics on the Settling Time of a Readout Circuit for High Performance MEMS Accelerometers
IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)
2019
DOI:10.1109/ISISS.2019.8739750
310.
Lanniel, A.; Boeser, T.; Alpert, T.; Ortmanns, M.
Tackling SDM Feedback Coefficient Modulation in Area Optimized Frontend Readout Circuit for High Performance MEMS Accelerometers
IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)
2019
DOI:10.1109/ISISS.2019.8739683

2018

309.
Wagner, J.; Vogelmann, P.; Ortmanns, M.
On the Optimization of DT Incremental Sigma-Delta Modulators in Combination with CoI Reconstruction Filters
2nd New Generation of Circuits & Systems Conference (NGCAS 2018), Valetta, Malta
November 2018
308.
Wagner, J.; Vogel, F.; Kuhm, F.; Ortmanns, M.
Automated Synthesis of Subsampling CT Bandpass Sigma-Delta Modulators with Non-Idealities
2nd New Generation of Circuits & Systems Conference (NGCAS 2018), Valetta, Malta
November 2018
307.
Lv, L.; Jain, A.; Zhou, X.; Becker, J.; Li, Q.; Ortmanns, M.
A 0.4-V Gm–C Proportional-Integrator-Based Continuous-Time Delta-Sigma Modulator With 50-kHz BW and 74.4-dB SNDR
IEEE Journal of Solid-State Circuits, vol. 53, no. 11, pp. 3256-3267
November 2018
306.
Haas, M.; Ortmanns, M.
Efficient implementation and stability analysis of a HV-CMOS current/voltage mode stimulator
IEEE/CAS-EMB Biomedical Circuits and Systems Conference (BioCAS) 2018, Cleveland, USA
October 2018
305.
Herkle, A.; Becker, J.; Ortmanns, M.
Methoden zur Verbesserung von CMOS integrierten Arbiter-PUFs
16. GMM/ITG-Fachtagung Analog, München, Germany
September 2018
DOI:10.18725/OPARU-17977
304.
Häberle, M.; Djekic, D.; Fantner, G.; Lips, K.; Ortmanns, M.; Anders, J.
An integrator-differentiator TIA using a multi-element pseudo-resistor in its DC servo loop for enhanced noise performance
ESSCIRC 2018 - 44th IEEE European Solid State Circuits Conference, Dresden, Germany
September 2018
303.
Djekic, D.; Fantner, G.; Lips, K.; Ortmanns, M.; Anders, J.
A 0.1% THD, 1-MOhm to 1-GOhm Tunable, Temperature-Compensated Transimpedance Amplifier Using a Multi-Element Pseudo-Resistor
IEEE Journal of Solid-State Circuits, vol. 53, no. 7, pp. 1913-1923
July 2018
302.
Wagner, J.; Ortmanns, M.; de la Rosa, J. M.
Man or Machine — Design Automation of Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, pp. 1-5
May 2018
301.
Chi, J.; Jain, A.; Sauerbrey, J.; Becker, J.; Ortmanns, M.
Interferer Induced Jitter Reduction in Bandpass CT ΣΔ Modulators for Receiver Applications
2018 IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, pp. 1-4
May 2018
300.
Vogelmann, P.; Wagner, J.; Hänsler, A.; Ortmanns, M.
Improved SQNR and MSA in Incremental ΔΣ Modulators by Using a Recuperation Phase
IEEE Transactions on Circuits and Systems—II: Express Briefs, Vol. 65, No. 5
May 2018
299.
Vogelmann, P.; Wagner, J.; Hänsler, A.; Ortmanns, M.
On Incremental ∆Σ Modulators with SNR and SQNR Enhancement by Recuperation Phase
IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy
May 2018
File:pdfhttps://www.uni-ulm.de/fileadmin/website_uni_ulm/iui.inst.010/downloads/Vogelmann_ISCAS_2018-05.pdf
298.
Rajabzadeh, M.; Djekic, D.; Häberle, M.; Becker, J.; Anders, J.; Ortmanns, M.
Comparison Study of Integrated Potentiostats: Resistive-TIA, Capacitive-TIA, CT Σ∆ Modulator
IEEE International Symposium on Circuits & Systems (ISCAS), Florence, Italy
May 2018
297.
Herkle, A.; Becker, J.; Ortmanns, M.
An Arbiter PUF employing eye-opening oscillation for improved noise suppression
IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy
May 2018
DOI:10.18725/OPARU-17954
296.
Luo, Y.; Qi, L.; Jain, A.; Ortmanns, M.
A High-Resolution Delta-Sigma D/A Converter Architecture with High Tolerance to DAC Mismatch
2018 IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, pp. 1-5
May 2018
295.
Mokhtar, M. A.; Ortmanns, M.
Study of Single Opamp Resonators in CT Sigma-Delta Modulators
Analogworkshop 2018, Albert-Ludwigs-Universität Freiburg, Germany
March 2018
294.
Vogelmann, P.; Haas, M.; Ortmanns, M.
A 1.1mW 200kS/s Incremental ΔΣ ADC with a DR of 91.5dB Using Integrator Slicing for Dynamic Power Reduction
IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, USA
February 2018
293.
Al Marashli, A.; Anders, J.; Becker, J.; Ortmanns, M.
A Nyquist rate SAR ADC employing incremental ΣΔ DAC achieving peak SFDR = 107 dB at 80 kS/s
IEEE Journal of Solid-State Circuits, Volume: 53, Issue: 5, Page s: 1493 - 1507
2018
292.
Haas, M.; Vogelmann, P.; Ortmanns, M.
A Neuromodulator Frontend with Reconfigurable Class-B Current and Voltage Controlled Stimulator
IEEE Solid-State Circuits Letters
2018

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