Artikel
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.
129.
J. G. Kauffman,
P. Witte,
J. Becker and
M. Ortmanns,
"An 8.5 mW Continuous-Time Delta-Sigma Modulator With 25 MHz Bandwidth Using Digital Background DAC Linearization to Achieve 63.5 dB SNDR and 81 dB SFDR",
IEEE Journal of Solid-State Circuits,
Dez.
2011.
128.
P. Witte,
J. G. Kauffman,
J. Becker and
M. Ortmanns,
"Correlation Based Background Error Estimation Technique for Bandpass Delta-Sigma ADC DACs",
IEEE Trans. Circuits Syst. II, Express Briefs,
Nov.
2011.
127.
A. Zahabi,
F. Jamal,
M. Anis and
M. Ortmanns,
"Integrated Microstrip/Coplanar/Tapered Transmission Lines for Bandpass Sigma-Delta Modulators",
12. ITG/GMM-Fachtagung Analog, Erlangen, Germany,
Nov.
2011.
126.
A. Zahabi,
M. Anis and
M. Ortmanns,
"3.1GHz-3.8GHz Integrated Transmission Line Super-Regeneration Amplifier with Degenerative Quenching Technique for Impulse-FM-UWB Transceiver",
European Solid-State Circuit Conf. (ESSCIRC), pp. 387-390, Helsinki, Finland,
Sep.
2011.
125.
C. Chu,
J. G. Kauffman,
S. Anis and
M. Ortmanns,
"A 4-bit, 500M/s Flash Quantizer Using an Auto-Zeroing Offset Compensated Comparator in 250nm SiGe",
Kleinheubacher Tagung, Miltenberg, Germany,
Sep.
2011.
124.
R. Ritter and
M. Ortmanns,
"Aktuelle Entwicklung zu frequenzumsetzenden Delta-Sigma ADCs für mobile Empfänger",
Kleinheubacher Tagung, Miltenberg, Germany,
Sep.
2011.
123.
H. Xu,
S. Lange,
H. Pless,
J. Becker,
R. Hornig,
E. Hennig and
M. Ortmanns,
"An AC-Powered Optical Receiver Consuming 270µW for Transcutaneous 2Mb/s Data Transfer",
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany,
Sep.
2011.
122.
K. Sooksood,
E. Noorsal,
R. Hornig,
J. Becker and
M. Ortmanns,
"Integrated Front-end for a Highly Parallel Universal Functional Electrical Stimulation Platform",
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany,
Sep.
2011.
121.
A. Zahabi,
M. Anis and
M. Ortmanns,
"Integrated Transmission Line Super-Regeneration Amplifier for Impulse-FM-UWB Transceiver",
Kleinheubacher Tagung, Miltenberg, Germany,
Sep.
2011.
120.
H. Xu and
M. Ortmanns,
"Wide-band Wide-input Efficiency-enhanced CMOS Rectifier with Self-temperature and Process Compensation",
IEEE Semiconductor Conference Dresden (SCD), Dresden, Germany,
Sep.
2011.
119.
T. Brückner,
C. Zorn,
W. Mathis and
M. Ortmanns,
"A single DAC CT ΣΔ Modulator with Butterworth STF characteristic",
The 54th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Seoul, South Korea,
Aug.
2011.
118.
C. Zorn,
S. Stegmann,
T. Brückner,
M. Ortmanns and
W. Mathis,
"STF Optimization of 1-Bit CT ΣΔ Modulators Based on Scaled Loop Filter Coefficients",
European Conference on Circuit Theory and Design, Linköping, Sweden,
Aug.
2011.
117.
M. Anis,
M. Ortmanns and
N. Wehn,
"A 2.5mW 2Mb/s Fully Integrated Impulse-FM-UWB Transceiver in 0.18µm CMOS",
In Proceeding of International Microwave Symposium (IMS), Baltimore, USA,
Jun.
2011.
116.
P. Witte,
J. G. Kauffman,
J. Becker and
M. Ortmanns,
"A digital background correction for DAC nonlinearities in lowpass and bandpass delta-sigma modulators - theory and implementation",
The 9th Int. Conf. on Sampling Theory and Applications (SampTA), Singapore,
Mai
2011.
115.
C. Zorn,
S. Stegmann,
T. Brückner,
M. Ortmanns and
W. Mathis,
"A Novel Optimization Method for CT Sigma-Delta-Modulators Using a Switched System Model",
The IEEE International Symposium on Circuits and Systems, Rio de Janeiro, Brazil,
Mai
2011.
114.
K. Sooksood,
E. Noorsal,
J. Becker and
M. Ortmanns,
"A Neural Stimulator Front-End with Arbitrary Pulse Shape, HV Compliance and Adaptive Supply Requiring 0.05mm2 in 0.35μm HVCMOS",
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA,
Feb.
2011.
113.
J. G. Kauffman,
P. Witte,
J. Becker and
M. Ortmanns,
"An 8mW 50MS/s CT ΔΣ Modulator with 81dB SFDR and Digital Background DAC Linearization",
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA,
Feb.
2011.
112.
S. Lange,
H. Xu,
C. Lang,
H. Pless,
J. Becker,
H. -. Tiedtke,
E. Hennig and
M. Ortmanns,
"An AC-Powered Optical Receiver Consuming 270μW for Transcutaneous 2Mb/s Data Transfer",
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA,
Feb.
2011.
111.
S. Stegmann,
C. Zorn,
T. Brückner,
M. Ortmanns and
W. Mathis,
"Anwendung einer Switched-System Modellierung zur Stabilitätsanalyse von zeitkontinuierlichen singlebit SD-Wandlern",
Advances in Radio Science, Vol. 9, pp. 209-213 ,
2011.
2010
110.
H. Xu and
M. Ortmanns,
"Highly Efficient Fully Integrated CMOS Rectifiers",
Kleinheubacher Tagung 2010 (KHT 2010), Miltenberg, Germany,
Okt.
2010.
109.
E. Noorsal,
K. Sooksood,
H. Xu and
M. Ortmanns,
"A Universal Functional Electrical Stimulation Platform for Rapid Prototyping",
DGBMT Jahrestagung (BMT 2010), Rostock-Warnemünde, Germany,
Okt.
2010.
108.
U. Bihr and
M. Ortmanns,
"Entwurf eines frequenz-separierten Aufnahmekanals für neuronale Signale in 0.35µm CMOS",
Kleinheubacher Tagung 2010 (KHT 2010), Miltenberg, Germany,
Okt.
2010.
107.
M. Anis,
M. Ortmanns and
N. Wehn,
"RF Spectrum Sensing Technique for Cognitive UWB Radio Network",
In Proceeding of European Solid-State Circuits Conference (ESSCIRC), Sevilla, Spain,
Sep.
2010.
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