Artikel
2012
154.
K. Sooksood,
E. Noorsal,
U. Bihr and
M. Ortmanns,
"Recent Advances in Power Efficient Output Stage for High Density Implantable Stimulators",
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA,
Aug.
2012.
153.
U. Bihr and
M. Ortmanns,
"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,
Jun.
2012.
152.
A. Zahabi,
M. Anis and
M. Ortmanns,
"Characterization of Integrated Transmission Lines for RF Bandpass Sigma Delta Modulators",
IEEE Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany,
Jun.
2012.
151.
J. G. Kauffman,
V. Rieger,
R. Ritter,
J. Anders and
M. Ortmanns,
"Design of a 5bit 1GSps VCO Quantizer for a CT Delta Sigma Modulator",
Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany,
Jun.
2012.
150.
A. Zahabi,
T. Liu,
M. Anis and
M. Ortmanns,
"Inductively Coupled Super-Regeneration Amplifier Based on Integrated Transmission Line for Transcutaneous Data Transfer",
In Proceeding of International Microwave Symposium (IMS), Montréal, Canada,
Jun.
2012.
149.
A. Zahabi,
M. Anis and
M. Ortmanns,
"Integrated Transmission Lines for Complementary Cross-Coupled Bandpass Filters of SD Modulators",
IEEE International NEW Symposium on Circuits and Systems (NEWCAS), Montreal, Canada,
Jun.
2012.
148.
M. Stein,
M. Ortmanns and
J. Becker,
"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,
Jun.
2012.
147.
A. Zahabi,
M. Anis and
M. Ortmanns,
"2.4GHz Super-Regeneration Amplifier with Degenerative Quenching Technique for RF-Pulse Width Transceiver",
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea,
Mai
2012.
146.
U. Bihr and
M. Ortmanns,
"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,
Mai
2012.
145.
H. Xu and
M. Ortmanns,
"A New Class of Integrated CMOS Rectifiers with Improved PVT-Compensated Efficiency",
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea,
Mai
2012.
144.
R. Ritter,
J. G. Kauffman and
M. Ortmanns,
"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,
Mai
2012.
143.
P. Witte,
J. G. Kauffman,
T. Brückner,
J. Becker and
M. Ortmanns,
"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,
Mai
2012.
142.
A. Zahabi,
F. Jamal,
J. Becker,
M. Anis and
M. Ortmanns,
"Digitally-Switched Resonators for Bandpass Integrated Transmission Line Sigma Delta Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea,
Mai
2012.
141.
C. Zorn,
C. Widemann,
T. Brückner,
M. Ortmanns and
W. Mathis,
"Peaking Reduced STF Design for CT SD Modulators with Selective Pole Compensation",
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea,
Mai
2012.
140.
K. Sooksood and
M. Ortmanns,
"Power Efficient Output Stage for High Density Implantable Stimulators",
Electronics Letters, Vol. 48 (10),
Mai
2012.
139.
P. Witte,
J. G. Kauffman,
J. Becker,
Y. Manoli and
M. Ortmanns,
"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,
Feb.
2012.
138.
P. Ostrovskyy,
H. Gustat,
M. Ortmanns and
J. C. Scheytt,
"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.
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&tp=&arnumber=6227312&contentType=Journals+%26+Magazines&searchField%3DSearch_All%26queryText%3Dostrovskyy.
137.
E. Noorsal,
K. Sooksood,
H. Xu,
R. Hornig,
J. Becker and
M. Ortmanns,
"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,
Jan.
2012.
136.
D. Angele,
M. Stein,
J. G. Kauffman,
M. Ortmanns and
J. Becker,
"A reconfigurable Continuous-Time ΔΣ-ADC using a digitally programmable gm-C array",
IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS),
2012.
135.
J. Anders,
M. Ortmanns,
K. Scheffler and
G. Beoro,
"Active Integrated Tracking Detectors for MRI-Guided",
Interventions, BMT 2012, Jena, Germany,
2012.
134.
J. Anders,
M. Ortmanns and
G. Boero,
"Frequency noise in current-starved CMOS LC tank oscillators",
In: Nonlinear Dynamics of Electronic Systems, Proceedings of NDES 2012 (2012), S. 1-4,
2012.
133.
J. Anders,
M. Ortmanns,
J. Brugger and
G. Boero,
"Fully-integrated CMOS arrays for NMR microscopy",
Workshop "Innovative Verarbeitung bioelektrischer und biomagnetischer Signale" - BBS2012, Berlin, Germany,
2012.
132.
J. Anders,
M. Ortmanns and
G. Boero,
"Noise in Frequency-Sensitive ESR Detectors",
MATHMOD, Vienna, Austria,
2012.
131.
C. Widemann,
C. Zorn,
T. Brückner,
M. Ortmanns and
W. Mathis,
"STF Optimierung von single-bit CT ΣΔ Modulatoren basierend auf
skalierten Filterkoeffizienten",
Advances in Radio Science, Vol. 10, pp. 313-317,
2012.
2011
130.
H. Xu and
M. Ortmanns,
"A Temperature and Process Compensated Ultra-Low-Voltage Rectifier in Standard Threshold CMOS for Energy Harvesting Applications",
IEEE Trans. Circuits Syst. II, Express Briefs,
Dez.
2011.
Bücher
2025
10.
Buhmann,
A.;
Lanniel,
A.;
Hiller,
T.;
Sporer,
M.;
Reich,
S.;
Ortmanns,
M.
Interface Circuits
Herausgeber: Ed. Elsevier
in Comprehensive Microsystems, 2nd ed., Y. B. Gianchandani, Volume 1, 2025, pp. 452–479 Edition
2025
Interface Circuits
Herausgeber: Ed. Elsevier
in Comprehensive Microsystems, 2nd ed., Y. B. Gianchandani, Volume 1, 2025, pp. 452–479 Edition
2025
| DOI: | 10.1016/B978-0-323-95478-5.00040-6 |
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
Januar 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
Januar 2023
| DOI: | doi.org/10.1007/978-3-031-22231-3_5 |
2021
8.
Haas,
M.;
Ortmanns,
M.
Neural Stimulation Circuits
Herausgeber: River Publishers
Selected Topics in Biomedical Circuits and Systems, Eds Minkyu Je and Myung Hoon Sunwoo Edition
Februar 2021
Neural Stimulation Circuits
Herausgeber: River Publishers
Selected Topics in Biomedical Circuits and Systems, Eds Minkyu Je and Myung Hoon Sunwoo Edition
Februar 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
Herausgeber: Springer
2019
Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits: Advances in Analog Circuit Design 2019
Herausgeber: Springer
2019
| ISBN: | 978-3030252663 |
2016
6.
Ortmanns,
M.;
Ritter,
R.;
Chi,
J.
ΣΔ ADCs with Improved Interferer Robustness
Band Wideband Continuous-time SD-ADCs, Automotive Electronics, and Power Management: Advances in Analog Circuit Design 2016
Herausgeber: Springer
2016
ΣΔ ADCs with Improved Interferer Robustness
Band Wideband Continuous-time SD-ADCs, Automotive Electronics, and Power Management: Advances in Analog Circuit Design 2016
Herausgeber: 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
Herausgeber: 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
Herausgeber: Springer
2014
2007
4.
Ortmanns,
M.;
Buhmann,
A.;
Manoli,
Y.
Interface Circuits in Comprehensive Microsystems
Herausgeber: Elsevier Pubs.
2007
Interface Circuits in Comprehensive Microsystems
Herausgeber: 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
Herausgeber: 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
Herausgeber: 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
Herausgeber: Springer Pubs.
2005
Continuous-Time Sigma-Delta A/D Conversion, Fundamentals, Error Correction and Robust Implementations
Herausgeber: Springer Pubs.
2005
2003
1.
Ortmanns,
M.
Error Compensation in Continuous-Time Sigma-Delta A/D Converters
Herausgeber: PhD Thesis, Albert-Ludwigs-University Freiburg
2003
Error Compensation in Continuous-Time Sigma-Delta A/D Converters
Herausgeber: PhD Thesis, Albert-Ludwigs-University Freiburg
2003
Patente
- 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