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

Papers

2012

154.
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
153.
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
152.
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
151.
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
150.
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
149.
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
148.
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
147.
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
146.
Sooksood , K. ; Ortmanns , M.
Power Efficient Output Stage for High Density Implantable Stimulators
Electronics Letters, Vol. 48 (10)
May 2012
145.
Bihr , U. ; Ortmanns , M.
A Front-End Circuit with Active Spike and LFP Separation via a Switched Capacitor Filter Structure for Neural Recording Applications
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
144.
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
143.
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
142.
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
141.
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
140.
Xu , H. ; Ortmanns , M.
A New Class of Integrated CMOS Rectifiers with Improved PVT-Compensated Efficiency
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
139.
Witte , P. ; Kauffman , J. G. ; Becker , J. ; Manoli , Y. ; Ortmanns , M.
A 72dB-DR Delta-Sigma CT Modulator Using Digitally Estimated Auxiliary DAC Linearization Achieving 88fJ/conv in a 25 MHz BW
IEEE International Conference on Solid-State Circuits (ISSCC), San Francisco, USA
February 2012
138.
Ostrovskyy , P. ; Gustat , H. ; Ortmanns , M. ; Scheytt , J. C.
A 5-Gb/s 2.1--2.2-GHz Bandpass Delta Sigma Modulator for Switch-Mode Power Amplifier
Microwave Theory and Techniques, IEEE Transactions on, Volume: 60, Issue: 8 2012 , pp: 2524 - 2531
2012
137.
Anders , J. ; Ortmanns , M. ; Boero , G.
Frequency noise in current-starved CMOS LC tank oscillators
In: Nonlinear Dynamics of Electronic Systems, Proceedings of NDES 2012 (2012), S. 1-4
2012
136.
Widemann , C. ; Zorn , C. ; Brückner , T. ; Ortmanns , M. ; Mathis , W.
STF Optimierung von single-bit CT ΣΔ Modulatoren basierend auf skalierten Filterkoeffizienten
Advances in Radio Science, Vol. 10, pp. 313-317
2012
135.
Anders , J. ; Ortmanns , M. ; Brugger , J. ; Boero , G.
Fully-integrated CMOS arrays for NMR microscopy
Workshop "Innovative Verarbeitung bioelektrischer und biomagnetischer Signale" - BBS2012, Berlin, Germany
2012
134.
Noorsal , E. ; Sooksood , K. ; Xu , H. ; Hornig , R. ; Becker , J. ; Ortmanns , M.
A Neural Stimulator Frontend with High-Voltage Compliance and Programmable Pulse Shape for Epiretinal Implants
IEEE Journal of Solid-State Circuits, Vol. 47, no. 1, pp. 244-256
January 2012
133.
Anders , J. ; Ortmanns , M. ; Boero , G.
Noise in Frequency-Sensitive ESR Detectors
MATHMOD, Vienna, Austria
2012
132.
Angele , D. ; Stein , M. ; Kauffman , J. G. ; Ortmanns , M. ; Becker , J.
A reconfigurable Continuous-Time ΔΣ-ADC using a digitally programmable gm-C array
IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS)
2012
131.
Anders , J. ; Ortmanns , M. ; Scheffler , K. ; Beoro , G.
Active Integrated Tracking Detectors for MRI-Guided
Interventions, BMT 2012, Jena, Germany
2012

2011

130.
Xu , H. ; Ortmanns , M.
A Temperature and Process Compensated Ultra-Low-Voltage Rectifier in Standard Threshold CMOS for Energy Harvesting Applications
IEEE Trans. Circuits Syst. II, Express Briefs
December 2011

Books

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