Institute of Microelectronics

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

Papers  Books  Patents 

Papers

2010

104.
A. Zahabi, M. Anis and M. Ortmanns, "A Reconfigurable Integrated Transmission Line Sigma Delta Modulator for the UWB/WLAN Receiver", IEEE Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), pp. 1-4, Berlin, Germany, Jul. 2010.
103.
K. Sooksood, T. Stieglitz and M. Ortmanns, "An Active Approach for Charge Balancing in Functional Electrical Stimulation", IEEE Transactions on Biomedical Circuits and Systems, Vol. 4, No. 3, pp. 162-170, Jun. 2010.
102.
A. Zahabi and M. Ortmanns, "Study on Integrated Transmission Line ΣΔ Modulators", IEEE International Symposium on Circuits and Systems (ISCAS), pp. 2151-2154, Paris, France, May 2010.
101.
P. Witte, C. Noeske and M. Ortmanns, "Hardware Complexity of a Correlation Based Background DAC Error Estimation Technique for Sigma-Delta ADCs", IEEE International Symposium on Circuits and Systems (ISCAS), Paris, France, May 2010.
100.
M. Anis, M. Ortmanns and N. Wehn, "3.6-to-4.4 GHz UWB Impulse Transmitter and 402-to-405MHz Super-regenerative Receiver for Medical Implant Devices", Proc. 11th annual IEEE Wireless and Microwave Technology (WAMI) Conference, Melbourne Beach, USA, Apr. 2010.
99.
M. Anis, M. Ortmanns and N. Wehn, "Fully Integrated Low Power Self-Quenched Super-Regenerative Impulse-FM-UWB Transceiver for WBAN", Proc. IEEE International Symposium on VLSI Design, Automation & Test (VLSI-DAT), Hsinchu, Taiwan, Apr. 2010.
98.
M. Anis, M. Ortmanns and N. Wehn, "Low Power Super-regenerative Impulse-FM-UWB Transceiver for WBAN", Proc. 11th annual IEEE Wireless and Microwave Technology (WAMI) Conference, Melbourne Beach, Florida, USA, Apr. 2010.
97.
P. Witte, C. Noeske and M. Ortmanns, "Practical Considerations and Hardware Complexity of a Background DAC Error Estimation for Sigma-Delta ADCs", 11. ITG/GMM-Fachtagung Analog, Erfurt, Deutschland, Mar. 2010.
96.
M. Ortmanns, "Schaltungsentwurf für implantierbare Neurostimulatoren", invited to Tutorials zur Medizintechnik, Analog 2010, Erfurt, Germany, Mar. 2010.
95.
M. Lorenz, J. Becker and M. Ortmanns, "Vergleich heuristischer Algorithmen zur Synthese analoger Filter auf einer FPAA-basierenden Harwareplattform", 11. ITG/GMM-Fachtagung Analog, Erfurt, Deutschland, Mar. 2010.
94.
M. Anis, M. Ortmanns and N. Wehn, "Fully Integrated UWB Impulse Transmitter and 402-to-405MHz Super-Regenerative Receiver for Medical Implant Devices", Proc. IEEE International Symposium on Circuits and Systems, Paris, France, Jan. 2010.
93.
M. Ortmanns, "Teaching Analog CMOS in the DSM Era - Devices, Designs and Tools", European Workshop on Microelectronics Education, EWME, Darmstadt, Germany, 2010.

2009

92.
S. A. Mohamed, Y. Manoli and M. Ortmanns, "A CMOS Passive Mixer for Direct-Conversion Receivers", IEEE Midwest Symposium on Circuits and Systems (MWSCAS), IEEE, Cancun, Mexico, Nov. 2009.
91.
S. A. Mohamed, Y. Manoli and M. Ortmanns, "A Differential Common-Gate Class-E Power Amplifier with Positive-Negative Feedback", IEEE Midwest Symposium on Circuits and Systems (MWSCAS), IEEE, Cancun, Mexico, Nov. 2009.
90.
M. Afifi, M. Keller, Y. Manoli and M. Ortmanns, "Excess Loop Delay Compensation Technique For Tunable Bandpass Delta Sigma Modulators", IEEE Midwest Symposium on Circuits and Systems (MWSCAS), IEEE, Cancun, Mexico, Nov. 2009.
89.
A. Zahabi, M. Anis and M. Ortmanns, "Fully integrated Sigma-Delta Modulators based on Transmission lines", Kleinheubacher Tagung, Miltenberg, Germany, Oct. 2009.
88.
A. Buhmann, M. Keller, M. Maurer, M. Ortmanns and Y. Manoli, "DISCO: a graphical methodology for the design of Sigma-Delta modulators", Analog Integrated Circuits and Signal Processing, Springer, Vol. 60, Nr. 1-2, pp. 3-11, Aug. 2009.
87.
C. Peters, J. Handwerker, F. Henrici, M. Ortmanns and Y. Manoli, "Experimental Results on Power Efficient Single-Poly Floating Gate Rectifiers", IEEE Int. Symposium on Circuits and Systems (ISCAS'09), Taipei, Taiwan, May 2009.
86.
M. Ortmanns, "Safety Issues and Circuit Implementation for Retinal Stimulators", invited to Forum: Integrated Neural Interfaces, IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA, Feb. 2009.
85.
P. Witte and M. Ortmanns, "A Background DAC Error Estimation in Sigma-Delta ADCs Using a Pseudo Random Noise Based Correlation Technique", IEEE Int. Symp. on Circuits and Systems (ISCAS), Taipei, Taiwan, 2009.
84.
F. Henrici, J. Becker, S. Trendelenburg, D. De Dorigo, M. Ortmanns and Y. Manoli, "A Field Programmable Analog Array Using Floating Gates for High Resolution Tuning", IEEE Int. Symp. on Circuits and Systems (ISCAS), Taipei, Taiwan, 2009.
83.
K. Sooksood, T. Stieglitz and M. Ortmanns, "An Active Approach for Charge Balancing in Functional Electrical Stimulation", IEEE Int. Symp. on Circuits and Systems (ISCAS), Taipei, Taiwan, 2009.
82.
K. Sooksood, T. Stieglitz and M. Ortmanns, "An Experimental Study on Passive Charge Balancing", Advances in Radio Science, Vol. 7, pp. 197-200, 2009.
81.
K. Sooksood, T. Stieglitz and M. Ortmanns, "Recent Advances in Charge Balancing for Functional Electrical Stimulation", Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2009), Minneapolis, Minnesota, USA, 2009.
80.
M. Keller, A. Buhmann, M. Ortmanns and Y. Manoli, "Systematic approach to the synthesis of continuous-time cascaded sigma–delta modulators", Analog Integrated Circuits and Signal Processing, Springer, pp. 155-164, Vol. 60, Nr. 1-2, Aug., 2009.

Books

2025

10.
Buhmann, A.; Lanniel, A.; Hiller, T.; Sporer, M.; Reich, S.; Ortmanns, M.
Interface Circuits
Publisher: 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
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