Papers
2006
39.
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
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
38.
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
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
37.
Ortmanns,
M.
Modellierung und Simulation zeitkontinuierlicher Sigma-Delta A/D Umsetzer
Advances in Radio Science Vol. 5 (Kleinheubacher Berichte), Miltenberg, Germany
2006
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
A Transistor-based Clock Jitter Insensitive DAC Architecture
IEEE Int. Symp. on Circuits and Systems (ISCAS), Kos Island, Greece
2006
35.
Anders,
J.;
Mathis,
W.;
Ortmanns,
M.
Direkter Entwurf von zeitkontinuierlichen Sigma-Delta-Modulatoren - Optimale Rauschformung und erweiterte Stabilitätsbetrachtungen
Kleinheubacher Tagung
2006
Direkter Entwurf von zeitkontinuierlichen Sigma-Delta-Modulatoren - Optimale Rauschformung und erweiterte Stabilitätsbetrachtungen
Kleinheubacher Tagung
2006
34.
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
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
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
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
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
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.
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
A Cascaded Continuous-Time Sigma-Delta Modulator with 80 dB Dynamic Range
IEEE Int. Symp. on Circuits and Systems (ISCAS), Vancouver, Canada
2004
29.
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
A New Technique for Automatic Error Correction in Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems (ISCAS), Kobe, Japan
2004
28.
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
A Novel Method for in-vivo Stress Measurement in Osteosynthesis
Biomedizinische Technik BMT, Ilmenau, Germany
2004
27.
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
A Pressure Sensor based in-vivo Stress Measurement in Osteosynthesis
Eurosensors XVIII, Rom, Italy
2004
26.
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
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
25.
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
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
24.
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
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
23.
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
On the Implicit Anti-Aliasing Filter in Continuous Time Sigma Delta Modulators
IEEE International Conference on Signals and Electronic Systems (ICSES), Poznan, Poland
2004
2003
22.
Ortmanns,
M.;
Gerfers,
F.;
Manoli,
Y.
A Continuous-Time Sigma-Delta Modulator with Switched Capacitor Controlled Current Mode Feedback
European Solid-State Circuits Conference, Estoril, Portugal
2003
A Continuous-Time Sigma-Delta Modulator with Switched Capacitor Controlled Current Mode Feedback
European Solid-State Circuits Conference, Estoril, Portugal
2003
21.
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
Compensation of Finite Gain-Bandwidth Induced Errors in Continuous-Time Sigma-Delta Modulators
IEEE Int. Conf. on Electronics, Circuits and Systems, Sharjah, UAE
2003
20.
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
Ein zeitkontinuierlicher Sigma-Delta Modulator mit Stromquellen-Rückkopplung und reduzierter Clock-Jitter Empfindlichkeit
ITG/ GMM -Diskussionssitzung ANALOG03, Heilbronn, Germany
2003
19.
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
Fundamental Limits of Jitter Insensitivity in discrete and Continuous-Time Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems, Bangkok, Thailand
2003
18.
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
Influence of finite Integrator Gain Bandwidth on Continuous-Time Sigma-Delta Modulators
IEEE Int. Symp. on Circuits and Systems, Bangkok, Thailand
2003
17.
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
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
16.
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
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
15.
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
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
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
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
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
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
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
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
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
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
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
Error Compensation in Continuous-Time Sigma-Delta A/D Converters
Publisher: PhD Thesis, Albert-Ludwigs-University Freiburg
2003
Patents
- A. Herkle, J. Becker, M. Ortmanns
[DE] Verfahren und Vorrichtung zur Erzeugung einer digitalen Signatur
DE102016204055A1, Patent record available from the German Patent
2016 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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