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

Papers

2006

38.
Becker, M.; Lotze, N.; Ortmanns, M.; Manoli, Y.
Implementation and Analysis of Power Consumption for a Power Optimized Decimator Designed for Cascaded Sigma-Delta A/D Converters
IEEE International Midwest Symposium on Circuits and Systems, 2006. MWSCAS 2006, San Juan, Puerto Rico
2006
37.
Ortmanns, M.
Modellierung und Simulation zeitkontinuierlicher Sigma-Delta A/D Umsetzer
Advances in Radio Science Vol. 5 (Kleinheubacher Berichte), Miltenberg, Germany
2006
36.
Gerfers, F.; Ortmanns, M.; Schmitz, P.
A Transistor-based Clock Jitter Insensitive DAC Architecture
IEEE Int. Symp. on Circuits and Systems (ISCAS), Kos Island, Greece
2006
35.
Ortmanns, M.; Unger, N.; Rocke, A.; Gehrke, M.; Tiedtke, H.-J.
A Retina Stimulator ASIC with 232 Electrodes, Custom ESD Protection and Active Charge Balancing
IEEE Int. Symp. on Circuits and Systems (ISCAS), Kos Island, Greece
2006
34.
Ortmanns, M.; Unger, N.; Rocke, A.; Gehrke, M.; Tiedtke, H.-J.
A 0.1mm², digitally programmable stimulation pad cell for a retinal implant with high-voltage capability
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA
2006

2005

33.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
A Case Study On A 2-1-1 Cascaded Continuous-Time Sigma-Delta Modulator
IEEE Trans. on Circuits and Systems I, Vol.52, No.8, pp. 1515-1525
2005
32.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
A Continuous-Time Sigma-Delta Modulator with Reduced Sensitivity to Clock Jitter through SCR-feedback
IEEE Trans. on Circuits and Systems I, Vol.52, No.5, pp. 875-884
2005
31.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
Increased Jitter Sensitivity in Continuous- and Discrete-Time Sigma-Delta Modulators due to finite OpAmp Settling Speed
IEEE Int. Symp. on Circuits and Systems (ISCAS), Kobe, Japan
2005

2004

30.
Gerfers, F.; Ortmanns, M.; Manoli, Y.
Design issues and performance limitations of a clock jitter insensitive multibit DAC architecture for high-performance low-power CT sigma-delta modulators
IEEE Symposium on Circuits and Systems, Vancouver, Canada
2004
29.
Keller, M.; Ortmanns, M.; Manoli, Y.
On the Implicit Anti-Aliasing Filter in Continuous Time Sigma Delta Modulators
IEEE International Conference on Signals and Electronic Systems (ICSES), Poznan, Poland
2004
28.
Becker, M.; Lotze, N.; Becker, J.; Ortmanns, M.; Manoli, Y.
Implementation of a Power Optimized Decimator for Cascaded Sigma-Delta A/D Converters
IEEE International Conference on Signals and Electronic Systems (ICSES), Poznan, Poland
2004
27.
Becker, M.; Lotze, N.; Becker, J.; Ortmanns, M.; Manoli, Y.
Implementierung eines verlustleistungsoptimierten Dezimators für kaskadierte Sigma-Delta Analog-Digital Umsetzer
Advances in Radio Science Vol. 3 (Kleinheubacher Berichte 2004), pp. 389-393, Miltenberg, Germany
2004
26.
Ortmanns, M.; Peters, C.; Manoli, Y.; Schmelzeisen, R.; Gutwald, R.
A Pressure Sensor based in-vivo Stress Measurement in Osteosynthesis
Eurosensors XVIII, Rom, Italy
2004
25.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
A New Technique for Automatic Error Correction in Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems (ISCAS), Kobe, Japan
2004
24.
Ortmanns, M.; Gerfers, F.; Kuderer, M.; Manoli, Y.
A Cascaded Continuous-Time Sigma-Delta Modulator with 80 dB Dynamic Range
IEEE Int. Symp. on Circuits and Systems (ISCAS), Vancouver, Canada
2004
23.
Ortmanns, M.; Peters, C.; Manoli, Y.; Schmelzeisen, R.; Gutwald, R.
A Novel Method for in-vivo Stress Measurement in Osteosynthesis
Biomedizinische Technik BMT, Ilmenau, Germany
2004

2003

22.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
The implementation of a continuous-time sigma-delta modulator with reduced sensitivity to clock jitter
GMM/GI/ITG Fachtagung - Entwurf Integrierter Schaltungen und Systeme, E.I.S.-Workshop, Erlangen, Germany
2003
21.
Gerfers, F.; Ortmanns, M.; Manoli, Y.
A 1V, 12-Bit Wideband Continuous-Time Sigma-Delta Modulator for UMTS Applications
IEEE Symposium on Circuits and Systems, Bangkok, Thailand
2003
20.
Gerfers, F.; Ortmanns, M.; Manoli, Y.
A 1.5-V, 12-bit Power-Efficient Continuous-Time Third-Order Sigma-Delta Modulator
IEEE Journal of Solid State Circuits, Vol.38, No.8, pp. 1343-1352
2003
19.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
The implementation of a continuous-time sigma-delta modulator with reduced sensitivity to clock jitter
GMM/GI/ITG Fachtagung - Entwurf Integrierter Schaltungen und Systeme, E.I.S.-Workshop, Erlangen, Germany
2003
18.
Becker, M.; Heiber, K.; Ortmanns, M.; Manoli, Y.
A Power Optimized Decimator Architecture for Cascaded Sigma-Delta Analog-to-Digital Converters
International Conference on Electronics, Circuits and Systems, Sharjah, UAE
2003
17.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
Influence of finite Integrator Gain Bandwidth on Continuous-Time Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems, Bangkok, Thailand
2003
16.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
Fundamental Limits of Jitter Insensitivity in discrete and Continuous-Time Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems, Bangkok, Thailand
2003
15.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
Ein zeitkontinuierlicher Sigma-Delta Modulator mit Stromquellen-Rückkopplung und reduzierter Clock-Jitter Empfindlichkeit
ITG/ GMM -Diskussionssitzung ANALOG03, Heilbronn, Germany
2003
14.
Ortmanns, M.; Gerfers, F.; Manoli, Y.
Compensation of Finite Gain-Bandwidth Induced Errors in Continuous-Time Sigma-Delta Modulators
IEEE Int. Conf. on Electronics, Circuits and Systems, Sharjah, UAE
2003

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