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

Papers

2013

185.
Schlecker, B.; Ortmanns, M.; Anders, J.
Treiberelektronik zur Anwendung in frequenzmodulierter Rasterkaftmikroskopie
Kleinheubacher Tagung, Miltenberg, Germany
September 2013
184.
Malhotra, G.; Becker, J.; Ortmanns, M.
Novel Field Programmable Embryonic Cell for Adder and Multiplier
9th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME 2013), Villach, Austria
June 2013
183.
Bihr, U.; Ungru, T.; Xu, H.; Anders, J.; Becker, J.; Ortmanns, M.
A Bidirectional Neural Interface with a HV Stimulator and a LV Neural Amplifier
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
182.
Xu, H.; Bihr, U.; Becker, J.; Ortmanns, M.
A Multi-channel Neural Stimulator with Resonance Compensated Inductive Receiver and Closed-loop Smart Power Management
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
181.
Kauffman, J. G.; Ritter, R.; Chu, C.; Ortmanns, M.
A Native Switched DAC Cell with low ISI for CT Delta Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
180.
Chu, C.; Brückner, T.; Kauffman, J. G.; Anders, J.; Becker, J.; Ortmanns, M.
Analysis and Design of High Speed/High Linearity CT Delta Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
179.
Brückner, T.; Kiebler, M.; Lorenz, M.; Zorn, C.; Mathis, W.; Ortmanns, M.
Calculating Transfer Functions of CT Sigma-Delta Modulators with Arbitrary DAC Waveforms
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
178.
Lorenz, M.; Brückner, T.; Ritter, R.; Ortmanns, M.
Concurrent Estimation of Amplifier Nonidealities and Excess Loop Delay in Continuous-Time Sigma-Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
177.
Ritter, R.; Kauffman, J. G.; Lorenz, M.; Ortmanns, M.
Integrator Swing Reduction in Feedback Compensated Sigma Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
176.
Kauffman, J. G.; Ritter, R.; Chu, C.; Becker, J.; Ortmanns, M.
Low Power Quantizer Design in CT Delta Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
175.
Schlecker, B.; Ortmanns, M.; Fantner, G.; Anders, J.
PLL-based high-speed demodulation of FM signals for real-time AFM applications
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
174.
Liu, T.; Anders, J.; Ortmanns, M.
System Level Model for Transcutaneous Optical Telemetric Link
IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China
May 2013
173.
Liu, T.; Xu, H.; Ortmanns, M.
Light Tissue Interaction for transcutaneous Optical Telemetric Link
Analog 2013, Aachen, Germany
March 2013
172.
Schlecker, B.; Anders, J.; Ortmanns, M.
PLL-basierte Demodulation von FM Signalen für frequenzmodulierte Hochgeschwindigkeitsrasterkraftmikroskopie
15. Workshop Analogschaltungen 2013, Reutlingen, Germany
February 2013

2012

171.
Bulach, C.; Bihr, U.; Ortmanns, M.
Evaluating the Influence of the Bit Error Rate on the Information of Neural Spike Signals
19th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Seville, Spain
December 2012
170.
Brückner, T.; Kiebler, M.; Zorn, C.; Mathis, W.; Ortmanns, M.
Discrete-Time Simulation of Arbitrary Digital/Analog Converter Waveforms in Continuous-Time Sigma-Delta Modulators
19th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Seville, Spain
December 2012
169.
Lorenz, M.; Maurer, M.; Manoli, Y.; Ortmanns, M.
Joint Estimation of Filter Nonidealities in Continuous-Time Sigma-Delta Modulators by using an Unscented Kalman Filter
19th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Seville, Spain
December 2012
168.
Zorn, C.; Brückner, T.; Ortmanns, M.; Mathis, W.
Performance tuning of multi-bit continuous time ΣΔ-modulators using a switched system model
19th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Seville, Spain
December 2012
167.
Chu, C.; Kauffman, J. G.; Ortmanns, M.
A 12-bit continuous-time third Order ΔΣ Modulator with 85dBFS SFDR in a 15MHz BW
Kleinheubacher Tagung 2012, Miltenberg, Germany
September 2012
166.
Zahabi, A.; Anis, M.; Ortmanns, M.
A 9.6 GS/s 112 mW 58 dB DR 150 MHz Bandwidth RF Bandpass Transmission Line SD Modulator
European Solid-State Circuit Conf. (ESSCIRC), Bordeaux, France
September 2012
165.
Bihr, U.; Ortmanns, M.
A Front-End Circuit for Neural Recording Applications with Spectral Separation of LFP and Action Potentials Consuming 21 μW per Channel
46. DGBMT Jahrestagung (BMT 2012), Jena, Germany
September 2012
164.
Xu, H.; Noorsal, E.; Sooksood, K.; Becker, J.; Ortmanns, M.
A Multichannel Neurostimulator with Transcutaneous Closed-Loop Power Control and Self-Adaptive Supply
IEEE European Solid-State Circuits Conference (ESSCIRC), Bordeaux, France
September 2012
163.
Schlecker, B.; Ortmanns, M.; Anders, J.
Hochgeschwindigkeitsdetektoren für frequenzmodulierte Rasterkraftmikroskopie
Kleinheubacher Tagung, Miltenberg, Germany
September 2012
162.
Handwerker, J.; Ortmanns, M.; Anders, J.
Multiplexingstrategien für vollintegrierte CMOS NMR Empänger für die NMR Mikroskopie
Kleinheubacher Tagung, Miltenberg, Germany
September 2012
161.
Zahabi, A.; Anis, M.; Ortmanns, M.
A Power/Area-Starved Complementary-Cross-Coupled Filter for Integrated Transmission Line SD Modulators
IEEE Midwest Symposium on Circuits and Systems (MWSCAS 2012), Boise, Idaho, USA
August 2012

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