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

Papers

2011

125.
Zahabi, A.; Anis, M.; Ortmanns, M.
Integrated Transmission Line Super-Regeneration Amplifier for Impulse-FM-UWB Transceiver
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
124.
Sooksood, K.; Noorsal, E.; Hornig, R.; Becker, J.; Ortmanns, M.
Integrated Front-end for a Highly Parallel Universal Functional Electrical Stimulation Platform
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany
September 2011
123.
Xu, H.; Lange, S.; Pless, H.; Becker, J.; Hornig, R.; Hennig, E.; Ortmanns, M.
An AC-Powered Optical Receiver Consuming 270µW for Transcutaneous 2Mb/s Data Transfer
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany
September 2011
122.
Ritter, R.; Ortmanns, M.
Aktuelle Entwicklung zu frequenzumsetzenden Delta-Sigma ADCs für mobile Empfänger
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
121.
Zahabi, A.; Anis, M.; Ortmanns, M.
3.1GHz-3.8GHz Integrated Transmission Line Super-Regeneration Amplifier with Degenerative Quenching Technique for Impulse-FM-UWB Transceiver
European Solid-State Circuit Conf. (ESSCIRC), pp. 387-390, Helsinki, Finland
September 2011
120.
Chu, C.; Kauffman, J. G.; Anis, S.; Ortmanns, M.
A 4-bit, 500M/s Flash Quantizer Using an Auto-Zeroing Offset Compensated Comparator in 250nm SiGe
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
119.
Zorn, C.; Stegmann, S.; Brückner, T.; Ortmanns, M.; Mathis, W.
STF Optimization of 1-Bit CT ΣΔ Modulators Based on Scaled Loop Filter Coefficients
European Conference on Circuit Theory and Design, Linköping, Sweden
August 2011
118.
Brückner, T.; Zorn, C.; Mathis, W.; Ortmanns, M.
A single DAC CT ΣΔ Modulator with Butterworth STF characteristic
The 54th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Seoul, South Korea
August 2011
117.
Anis, M.; Ortmanns, M.; Wehn, N.
A 2.5mW 2Mb/s Fully Integrated Impulse-FM-UWB Transceiver in 0.18µm CMOS
In Proceeding of International Microwave Symposium (IMS), Baltimore, USA
June 2011
116.
Witte, P.; Kauffman, J. G.; Becker, J.; Ortmanns, M.
A digital background correction for DAC nonlinearities in lowpass and bandpass delta-sigma modulators - theory and implementation
The 9th Int. Conf. on Sampling Theory and Applications (SampTA), Singapore
May 2011
115.
Zorn, C.; Stegmann, S.; Brückner, T.; Ortmanns, M.; Mathis, W.
A Novel Optimization Method for CT Sigma-Delta-Modulators Using a Switched System Model
The IEEE International Symposium on Circuits and Systems, Rio de Janeiro, Brazil
May 2011
114.
Lange, S.; Xu, H.; Lang, C.; Pless, H.; Becker, J.; Tiedtke, H.-J.; Hennig, E.; Ortmanns, M.
An AC-Powered Optical Receiver Consuming 270μW for Transcutaneous 2Mb/s Data Transfer
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA
February 2011
113.
Kauffman, J. G.; Witte, P.; Becker, J.; Ortmanns, M.
An 8mW 50MS/s CT ΔΣ Modulator with 81dB SFDR and Digital Background DAC Linearization
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA
February 2011
112.
Sooksood, K.; Noorsal, E.; Becker, J.; Ortmanns, M.
A Neural Stimulator Front-End with Arbitrary Pulse Shape, HV Compliance and Adaptive Supply Requiring 0.05mm2 in 0.35μm HVCMOS
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA
February 2011
111.
Stegmann, S.; Zorn, C.; Brückner, T.; Ortmanns, M.; Mathis, W.
Anwendung einer Switched-System Modellierung zur Stabilitätsanalyse von zeitkontinuierlichen singlebit SD-Wandlern
Advances in Radio Science, Vol. 9, pp. 209-213
2011

2010

110.
Xu, H.; Ortmanns, M.
Highly Efficient Fully Integrated CMOS Rectifiers
Kleinheubacher Tagung 2010 (KHT 2010), Miltenberg, Germany
October 2010
109.
Bihr, U.; Ortmanns, M.
Entwurf eines frequenz-separierten Aufnahmekanals für neuronale Signale in 0.35µm CMOS
Kleinheubacher Tagung 2010 (KHT 2010), Miltenberg, Germany
October 2010
108.
Noorsal, E.; Sooksood, K.; Xu, H.; Ortmanns, M.
A Universal Functional Electrical Stimulation Platform for Rapid Prototyping
DGBMT Jahrestagung (BMT 2010), Rostock-Warnemünde, Germany
October 2010
107.
Anis, M.; Ortmanns, M.; Wehn, N.
RF Spectrum Sensing Technique for Cognitive UWB Radio Network
In Proceeding of European Solid-State Circuits Conference (ESSCIRC), Sevilla, Spain
September 2010
106.
Noorsal, E.; Ortmanns, M.
An Architecture for a Universal Neural Stimulator with almost Arbitrary Current Waveform
32nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010), Buenos Aires, Argentina
September 2010
105.
Witte, P.; Ortmanns, M.
Background DAC Error Estimation Using a Pseudo Random Noise Based Correlation Technique for Sigma-Delta Analog-to-Digital Converters.
IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 57
July 2010
104.
Zahabi, A.; Anis, M.; Ortmanns, M.
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
July 2010
103.
Sooksood, K.; Stieglitz, T.; Ortmanns, M.
An Active Approach for Charge Balancing in Functional Electrical Stimulation
IEEE Transactions on Biomedical Circuits and Systems, Vol. 4, No. 3, pp. 162-170
June 2010
102.
Zahabi, A.; Ortmanns, M.
Study on Integrated Transmission Line ΣΔ Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), pp. 2151-2154, Paris, France
May 2010
101.
Witte, P.; Noeske, C.; Ortmanns, M.
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

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