Papers
2012
137.
Noorsal,
E.;
Sooksood,
K.;
Xu,
H.;
Hornig,
R.;
Becker,
J.;
Ortmanns,
M.
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
January 2012
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
January 2012
136.
Anders,
J.;
Ortmanns,
M.;
Boero,
G.
Noise in Frequency-Sensitive ESR Detectors
MATHMOD, Vienna, Austria
2012
Noise in Frequency-Sensitive ESR Detectors
MATHMOD, Vienna, Austria
2012
135.
Anders,
J.;
Ortmanns,
M.;
Brugger,
J.;
Boero,
G.
Fully-integrated CMOS arrays for NMR microscopy
Workshop "Innovative Verarbeitung bioelektrischer und biomagnetischer Signale" - BBS2012, Berlin, Germany
2012
Fully-integrated CMOS arrays for NMR microscopy
Workshop "Innovative Verarbeitung bioelektrischer und biomagnetischer Signale" - BBS2012, Berlin, Germany
2012
134.
Anders,
J.;
Ortmanns,
M.;
Boero,
G.
Frequency noise in current-starved CMOS LC tank oscillators
In: Nonlinear Dynamics of Electronic Systems, Proceedings of NDES 2012 (2012), S. 1-4
2012
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.
Ostrovskyy,
P.;
Gustat,
H.;
Ortmanns,
M.;
Scheytt,
J. C.
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
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
132.
Anders,
J.;
Ortmanns,
M.;
Scheffler,
K.;
Beoro,
G.
Active Integrated Tracking Detectors for MRI-Guided
Interventions, BMT 2012, Jena, Germany
2012
Active Integrated Tracking Detectors for MRI-Guided
Interventions, BMT 2012, Jena, Germany
2012
131.
Angele,
D.;
Stein,
M.;
Kauffman,
J. G.;
Ortmanns,
M.;
Becker,
J.
A reconfigurable Continuous-Time ΔΣ-ADC using a digitally programmable gm-C array
IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS)
2012
A reconfigurable Continuous-Time ΔΣ-ADC using a digitally programmable gm-C array
IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS)
2012
2011
130.
Xu,
H.;
Ortmanns,
M.
A Temperature and Process Compensated Ultra-Low-Voltage Rectifier in Standard Threshold CMOS for Energy Harvesting Applications
IEEE Trans. Circuits Syst. II, Express Briefs
December 2011
A Temperature and Process Compensated Ultra-Low-Voltage Rectifier in Standard Threshold CMOS for Energy Harvesting Applications
IEEE Trans. Circuits Syst. II, Express Briefs
December 2011
129.
Kauffman,
J. G.;
Witte,
P.;
Becker,
J.;
Ortmanns,
M.
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
December 2011
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
December 2011
128.
Zahabi,
A.;
Jamal,
F.;
Anis,
M.;
Ortmanns,
M.
Integrated Microstrip/Coplanar/Tapered Transmission Lines for Bandpass Sigma-Delta Modulators
12. ITG/GMM-Fachtagung Analog, Erlangen, Germany
November 2011
Integrated Microstrip/Coplanar/Tapered Transmission Lines for Bandpass Sigma-Delta Modulators
12. ITG/GMM-Fachtagung Analog, Erlangen, Germany
November 2011
127.
Witte,
P.;
Kauffman,
J. G.;
Becker,
J.;
Ortmanns,
M.
Correlation Based Background Error Estimation Technique for Bandpass Delta-Sigma ADC DACs
IEEE Trans. Circuits Syst. II, Express Briefs
November 2011
Correlation Based Background Error Estimation Technique for Bandpass Delta-Sigma ADC DACs
IEEE Trans. Circuits Syst. II, Express Briefs
November 2011
126.
Xu,
H.;
Lange,
S.;
Pless,
H.;
Becker,
J.;
Hornig,
R.;
Hennig,
E.;
Ortmanns,
M.
An AC-Powered Optical Receiver Consuming 270µW for Transcutaneous 2Mb/s Data Transfer
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany
September 2011
An AC-Powered Optical Receiver Consuming 270µW for Transcutaneous 2Mb/s Data Transfer
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany
September 2011
125.
Ritter,
R.;
Ortmanns,
M.
Aktuelle Entwicklung zu frequenzumsetzenden Delta-Sigma ADCs für mobile Empfänger
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
Aktuelle Entwicklung zu frequenzumsetzenden Delta-Sigma ADCs für mobile Empfänger
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
124.
Xu,
H.;
Ortmanns,
M.
Wide-band Wide-input Efficiency-enhanced CMOS Rectifier with Self-temperature and Process Compensation
IEEE Semiconductor Conference Dresden (SCD), Dresden, Germany
September 2011
Wide-band Wide-input Efficiency-enhanced CMOS Rectifier with Self-temperature and Process Compensation
IEEE Semiconductor Conference Dresden (SCD), Dresden, Germany
September 2011
123.
Zahabi,
A.;
Anis,
M.;
Ortmanns,
M.
Integrated Transmission Line Super-Regeneration Amplifier for Impulse-FM-UWB Transceiver
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
Integrated Transmission Line Super-Regeneration Amplifier for Impulse-FM-UWB Transceiver
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
122.
Chu,
C.;
Kauffman,
J. G.;
Anis,
S.;
Ortmanns,
M.
A 4-bit, 500M/s Flash Quantizer Using an Auto-Zeroing Offset Compensated Comparator in 250nm SiGe
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
A 4-bit, 500M/s Flash Quantizer Using an Auto-Zeroing Offset Compensated Comparator in 250nm SiGe
Kleinheubacher Tagung, Miltenberg, Germany
September 2011
121.
Zahabi,
A.;
Anis,
M.;
Ortmanns,
M.
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
September 2011
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
September 2011
120.
Sooksood,
K.;
Noorsal,
E.;
Hornig,
R.;
Becker,
J.;
Ortmanns,
M.
Integrated Front-end for a Highly Parallel Universal Functional Electrical Stimulation Platform
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany
September 2011
Integrated Front-end for a Highly Parallel Universal Functional Electrical Stimulation Platform
45. DGBMT Jahrestagung (BMT 2011), Freiburg, Germany
September 2011
119.
Brückner,
T.;
Zorn,
C.;
Mathis,
W.;
Ortmanns,
M.
A single DAC CT ΣΔ Modulator with Butterworth STF characteristic
The 54th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Seoul, South Korea
August 2011
A single DAC CT ΣΔ Modulator with Butterworth STF characteristic
The 54th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Seoul, South Korea
August 2011
118.
Zorn,
C.;
Stegmann,
S.;
Brückner,
T.;
Ortmanns,
M.;
Mathis,
W.
STF Optimization of 1-Bit CT ΣΔ Modulators Based on Scaled Loop Filter Coefficients
European Conference on Circuit Theory and Design, Linköping, Sweden
August 2011
STF Optimization of 1-Bit CT ΣΔ Modulators Based on Scaled Loop Filter Coefficients
European Conference on Circuit Theory and Design, Linköping, Sweden
August 2011
117.
Anis,
M.;
Ortmanns,
M.;
Wehn,
N.
A 2.5mW 2Mb/s Fully Integrated Impulse-FM-UWB Transceiver in 0.18µm CMOS
In Proceeding of International Microwave Symposium (IMS), Baltimore, USA
June 2011
A 2.5mW 2Mb/s Fully Integrated Impulse-FM-UWB Transceiver in 0.18µm CMOS
In Proceeding of International Microwave Symposium (IMS), Baltimore, USA
June 2011
116.
Zorn,
C.;
Stegmann,
S.;
Brückner,
T.;
Ortmanns,
M.;
Mathis,
W.
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
May 2011
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
May 2011
115.
Witte,
P.;
Kauffman,
J. G.;
Becker,
J.;
Ortmanns,
M.
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
May 2011
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
May 2011
114.
Lange,
S.;
Xu,
H.;
Lang,
C.;
Pless,
H.;
Becker,
J.;
Tiedtke,
H.-J.;
Hennig,
E.;
Ortmanns,
M.
An AC-Powered Optical Receiver Consuming 270μW for Transcutaneous 2Mb/s Data Transfer
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA
February 2011
An AC-Powered Optical Receiver Consuming 270μW for Transcutaneous 2Mb/s Data Transfer
IEEE Int. Conf. on Solid State Circuits (ISSCC), San Francisco, USA
February 2011
113.
Kauffman,
J. G.;
Witte,
P.;
Becker,
J.;
Ortmanns,
M.
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
February 2011
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
February 2011
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