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

Papers

2012

166.
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
165.
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
164.
Handwerker, J.; Ortmanns, M.; Anders, J.
Multiplexingstrategien für vollintegrierte CMOS NMR Empänger für die NMR Mikroskopie
Kleinheubacher Tagung, Miltenberg, Germany
September 2012
163.
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
162.
Schlecker, B.; Ortmanns, M.; Anders, J.
Hochgeschwindigkeitsdetektoren für frequenzmodulierte Rasterkraftmikroskopie
Kleinheubacher Tagung, Miltenberg, Germany
September 2012
161.
Noorsal, E.; Sooksood, K.; Bihr, U.; Becker, J.; Ortmanns, M.
Distributed Clock Gating for Power Reduction of a Programmable Waveform Generator for Neural Stimulation
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
160.
Bulach, C.; Bihr, U.; Ortmanns, M.
Evaluation Study of Compressed Sensing for Neural Spike Recordings
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
159.
Brückner, T.; Lorenz, M.; Zorn, C.; Becker, J.; Mathis, W.; Ortmanns, M.
Hardware-Accelerated Simulation Environment for CT Sigma–Delta Modulators Using an FPGA
Transactions on Circuits and Systems II, Vol. 59, no.8, pp. 471-475
August 2012
158.
Kauffman, J. G.; Brückner, T.; Ortmanns, M.
PVT Robust Design of Wideband CT Delta Sigma Modulators Including Finite GBW Compensation
The 55th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Boise, Idaho, USA
August 2012
157.
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
156.
Zahabi, A.; Anis, M.; Ortmanns, M.
Near Field Inductive Coupled Tuning Technique For RF Bandpass SD Modulators
IEEE Midwest Symposium on Circuits and Systems (MWSCAS 2012), Boise, Idaho, USA
August 2012
155.
Liu, T.; Bihr, U.; Anis, M.; Ortmanns, M.
Optical Transcutaneous Link for Low Power, High Data Rate Telemetry
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
154.
Sooksood, K.; Noorsal, E.; Bihr, U.; Ortmanns, M.
Recent Advances in Power Efficient Output Stage for High Density Implantable Stimulators
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
153.
Zahabi, A.; Anis, M.; Ortmanns, M.
Integrated Transmission Lines for Complementary Cross-Coupled Bandpass Filters of SD Modulators
IEEE International NEW Symposium on Circuits and Systems (NEWCAS), Montreal, Canada
June 2012
152.
Stein, M.; Ortmanns, M.; Becker, J.
Mitigating Temperature Impact on Analog Filters Using a Genetic Algorithm on a Continuous-Time FPAA
PRIME 2012, 8th Conference on Ph.D. Research in Microelectronics & Electronics, Aachen, Germany
June 2012
151.
Zahabi, A.; Liu, T.; Anis, M.; Ortmanns, M.
Inductively Coupled Super-Regeneration Amplifier Based on Integrated Transmission Line for Transcutaneous Data Transfer
In Proceeding of International Microwave Symposium (IMS), Montréal, Canada
June 2012
150.
Kauffman, J. G.; Rieger, V.; Ritter, R.; Anders, J.; Ortmanns, M.
Design of a 5bit 1GSps VCO Quantizer for a CT Delta Sigma Modulator
Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany
June 2012
149.
Zahabi, A.; Anis, M.; Ortmanns, M.
Characterization of Integrated Transmission Lines for RF Bandpass Sigma Delta Modulators
IEEE Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany
June 2012
148.
Bihr, U.; Ortmanns, M.
A Neural Recorder with Mixed Signal Feedback Loop for a Spectral Separation of Spikes and LFP
PRIME 2012, 8th Conference on Ph.D. Research in Microelectronics & Electronics, Aachen, Germany
June 2012
147.
Zahabi, A.; Jamal, F.; Becker, J.; Anis, M.; Ortmanns, M.
Digitally-Switched Resonators for Bandpass Integrated Transmission Line Sigma Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
146.
Zorn, C.; Widemann, C.; Brückner, T.; Ortmanns, M.; Mathis, W.
Peaking Reduced STF Design for CT SD Modulators with Selective Pole Compensation
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
145.
Zahabi, A.; Anis, M.; Ortmanns, M.
2.4GHz Super-Regeneration Amplifier with Degenerative Quenching Technique for RF-Pulse Width Transceiver
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
144.
Witte, P.; Kauffman, J. G.; Brückner, T.; Becker, J.; Ortmanns, M.
An Error Estimation Technique for Lowpass and Bandpass Delta-Sigma ADC Feedback DACs Using a Residual Test Signal
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
143.
Sooksood, K.; Ortmanns, M.
Power Efficient Output Stage for High Density Implantable Stimulators
Electronics Letters, Vol. 48 (10)
May 2012
142.
Ritter, R.; Kauffman, J. G.; Ortmanns, M.
A power efficient MDAC design with correlated double sampling for a 2-step-flash ADC
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 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