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

Papers

2009

88.
Buhmann, A.; Keller, M.; Maurer, M.; Ortmanns, M.; Manoli, Y.
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
August 2009
87.
Peters, C.; Handwerker, J.; Henrici, F.; Ortmanns, M.; Manoli, Y.
Experimental Results on Power Efficient Single-Poly Floating Gate Rectifiers
IEEE Int. Symposium on Circuits and Systems (ISCAS'09), Taipei, Taiwan
May 2009
86.
Ortmanns, M.
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
February 2009
85.
Keller, M.; Buhmann, A.; Ortmanns, M.; Manoli, Y.
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
84.
Sooksood, K.; Stieglitz, T.; Ortmanns, M.
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
83.
Sooksood, K.; Stieglitz, T.; Ortmanns, M.
An Experimental Study on Passive Charge Balancing
Advances in Radio Science, Vol. 7, pp. 197-200
2009
82.
Sooksood, K.; Stieglitz, T.; Ortmanns, M.
An Active Approach for Charge Balancing in Functional Electrical Stimulation
IEEE Int. Symp. on Circuits and Systems (ISCAS), Taipei, Taiwan
2009
81.
Henrici, F.; Becker, J.; Trendelenburg, S.; De Dorigo, D.; Ortmanns, M.; Manoli, Y.
A Field Programmable Analog Array Using Floating Gates for High Resolution Tuning
IEEE Int. Symp. on Circuits and Systems (ISCAS), Taipei, Taiwan
2009
80.
Witte, P.; Ortmanns, M.
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

2008

79.
Becker, J.; Henrici, F.; Trendelenburg, S.; Ortmanns, M.; Manoli, Y.
A Field-Programmable Analog Array of 55 Digitally Tunable OTAs in a Hexagonal Lattice
IEEE Journal of Solid-State Circuits, 43 (12) :2759 - 2768
December 2008
78.
Sooksood, K.; Stieglitz, T.; Ortmanns, M.
An Experimental Study on Passive Charge Balancing
Kleinheubacher Tagung 2008, Miltenberg, Germany
2008
77.
Lotze, N.; Ortmanns, M.; Manoli, Y.
Variability of flip-flop timing at sub-threshold voltages
Proc. IEEE International Symposium on Low-Power Electronic Devices 2008 (ISLPED), Bangalore, India
2008
76.
Henrici, F.; Peters, C.; Becker, J.; Ortmanns, M.; Manoli, Y.
Reliability Study of Single-Poly Floating Gates in 0.13 µm CMOS for use in Field Programmable Analog Arrays
IEEE Midwest Symposium on Circuits and Systems (MWSCAS), Knoxville, USA
2008
75.
Shahein, A.; Becker, M.; Lotze, N.; Ortmanns, M.; Manoli, Y.
Optimized Scheme for Power-of-Two Coefficient Approximation for Low Power Decimation Filters in Sigma Delta ADCs
IEEE Midwest Symposium on Circuits and Systems (MWSCAS), Knoxville, USA
2008
74.
Peters, C.; Henrici, F.; Ortmanns, M.; Manoli, Y.
High-Bandwidth Floating Gate CMOS Rectifiers with Reduced Voltage Drop
IEEE Int. Symp. on Circuits and Systems (ISCAS), Seattle, USA
2008
73.
Maurath, D.; Michel, F.; Ortmanns, M.; Manoli, Y.
High Efficiency, Low-Voltage and Self-Adjusting Charge Pump with Enhanced Impedance Matching
IEEE Midwest Symposium on Circuits and Systems (MWSCAS), Knoxville, USA
2008
72.
Peters, C.; Henrici, F.; Ortmanns, M.; Manoli, Y.
Fully CMOS Integrated Active Rectifier Without Voltage Drop
IEEE Midwest Symposium on Circuits and Systems (MWSCAS), Knoxville, USA
2008
71.
Afifi, M.; Ortmanns, M.; Manoli, Y.
Design Study of a Tunable Bandpass Continuous Time Sigma Delta Modulator for FM Digital Receiver
IEEE Mixed Design of Integrated Circuits and Systems International Conference 2008 (MIXDES), pp. 219 - 224, Poznan, Poland
2008
70.
Peters, C.; Ortmanns, M.; Manoli, Y.
CMOS Integrated Active Rectifier with Temperature Independent Efficiency
Proc. of IEEE NORChip, Tallinn, Estonia
2008
69.
Keller, M.; Buhmann, A.; Ortmanns, M.; Manoli, Y.
Analysis of Digital Gain Error Compensation in Continuous-Time Cascaded Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems (ISCAS), Seattle, USA
2008
68.
Henrici, F.; Becker, J.; Ortmanns, M.; Manoli, Y.
A Floating-Gate Field Programmable Analog Array in 0.13 µm CMOS with 200 MHz GBW
IEEE Int. Conf. on Solid State Circuits (ISSCC), Student Forum, San Francisco, USA
2008
67.
Sooksood, K.; Stieglitz, T.; Ortmanns, M.
An Experimental Study on Passive Charge Balancing
13th Annual International FES Society Conference 2008, Freiburg, Germany
2008
66.
Keller, M.; Buhmann, A.; Ortmanns, M.; Manoli, Y.
A Comparative Study on Excess Loop Delay Compensation Techniques for Continuous-Time Sigma-Delta Modulators
IEEE Trans. on Circuits and Systems I
2008
65.
Maurath, D.; Michel, F.; Ortmanns, M.; Manoli, Y.
A 0.5V Rail-to-Rail 1.5 µW CMOS Amplifier for Micro-Energy Harvesting Applications
IEEE Midwest Symposium on Circuits and Systems (MWSCAS), Knoxville, USA
2008
64.
Henrici, F.; Becker, J.; Ortmanns, M.; Manoli, Y.
A Switchable Folded-Cascode OTA without Transmission Gates in the Signal Path
Norchip Conference, Tallin
2008

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