Papers
2012
160.
Noorsal,
E.;
Sooksood,
K.;
Bihr,
U.;
Becker,
J.;
Ortmanns,
M.
Distributed Clock Gating for Power Reduction of a Programmable Waveform Generator for Neural Stimulation
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
Distributed Clock Gating for Power Reduction of a Programmable Waveform Generator for Neural Stimulation
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
159.
Bulach,
C.;
Bihr,
U.;
Ortmanns,
M.
Evaluation Study of Compressed Sensing for Neural Spike Recordings
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
Evaluation Study of Compressed Sensing for Neural Spike Recordings
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
158.
Brückner,
T.;
Lorenz,
M.;
Zorn,
C.;
Becker,
J.;
Mathis,
W.;
Ortmanns,
M.
Hardware-Accelerated Simulation Environment for CT Sigma–Delta Modulators Using an FPGA
Transactions on Circuits and Systems II, Vol. 59, no.8, pp. 471-475
August 2012
Hardware-Accelerated Simulation Environment for CT Sigma–Delta Modulators Using an FPGA
Transactions on Circuits and Systems II, Vol. 59, no.8, pp. 471-475
August 2012
157.
Zahabi,
A.;
Anis,
M.;
Ortmanns,
M.
Near Field Inductive Coupled Tuning Technique For RF Bandpass SD Modulators
IEEE Midwest Symposium on Circuits and Systems (MWSCAS 2012), Boise, Idaho, USA
August 2012
Near Field Inductive Coupled Tuning Technique For RF Bandpass SD Modulators
IEEE Midwest Symposium on Circuits and Systems (MWSCAS 2012), Boise, Idaho, USA
August 2012
156.
Liu,
T.;
Bihr,
U.;
Anis,
M.;
Ortmanns,
M.
Optical Transcutaneous Link for Low Power, High Data Rate Telemetry
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
Optical Transcutaneous Link for Low Power, High Data Rate Telemetry
34nd Annual Int. Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2012), San Diego, USA
August 2012
155.
Kauffman,
J. G.;
Brückner,
T.;
Ortmanns,
M.
PVT Robust Design of Wideband CT Delta Sigma Modulators Including Finite GBW Compensation
The 55th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Boise, Idaho, USA
August 2012
PVT Robust Design of Wideband CT Delta Sigma Modulators Including Finite GBW Compensation
The 55th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Boise, Idaho, USA
August 2012
154.
Sooksood,
K.;
Noorsal,
E.;
Bihr,
U.;
Ortmanns,
M.
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
August 2012
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
August 2012
153.
Bihr,
U.;
Ortmanns,
M.
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
June 2012
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
June 2012
152.
Zahabi,
A.;
Anis,
M.;
Ortmanns,
M.
Characterization of Integrated Transmission Lines for RF Bandpass Sigma Delta Modulators
IEEE Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany
June 2012
Characterization of Integrated Transmission Lines for RF Bandpass Sigma Delta Modulators
IEEE Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany
June 2012
151.
Kauffman,
J. G.;
Rieger,
V.;
Ritter,
R.;
Anders,
J.;
Ortmanns,
M.
Design of a 5bit 1GSps VCO Quantizer for a CT Delta Sigma Modulator
Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany
June 2012
Design of a 5bit 1GSps VCO Quantizer for a CT Delta Sigma Modulator
Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Aachen, Germany
June 2012
150.
Zahabi,
A.;
Liu,
T.;
Anis,
M.;
Ortmanns,
M.
Inductively Coupled Super-Regeneration Amplifier Based on Integrated Transmission Line for Transcutaneous Data Transfer
In Proceeding of International Microwave Symposium (IMS), Montréal, Canada
June 2012
Inductively Coupled Super-Regeneration Amplifier Based on Integrated Transmission Line for Transcutaneous Data Transfer
In Proceeding of International Microwave Symposium (IMS), Montréal, Canada
June 2012
149.
Zahabi,
A.;
Anis,
M.;
Ortmanns,
M.
Integrated Transmission Lines for Complementary Cross-Coupled Bandpass Filters of SD Modulators
IEEE International NEW Symposium on Circuits and Systems (NEWCAS), Montreal, Canada
June 2012
Integrated Transmission Lines for Complementary Cross-Coupled Bandpass Filters of SD Modulators
IEEE International NEW Symposium on Circuits and Systems (NEWCAS), Montreal, Canada
June 2012
148.
Stein,
M.;
Ortmanns,
M.;
Becker,
J.
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
June 2012
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
June 2012
147.
Zahabi,
A.;
Anis,
M.;
Ortmanns,
M.
2.4GHz Super-Regeneration Amplifier with Degenerative Quenching Technique for RF-Pulse Width Transceiver
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
2.4GHz Super-Regeneration Amplifier with Degenerative Quenching Technique for RF-Pulse Width Transceiver
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
146.
Bihr,
U.;
Ortmanns,
M.
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
May 2012
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
May 2012
145.
Xu,
H.;
Ortmanns,
M.
A New Class of Integrated CMOS Rectifiers with Improved PVT-Compensated Efficiency
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
A New Class of Integrated CMOS Rectifiers with Improved PVT-Compensated Efficiency
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
144.
Ritter,
R.;
Kauffman,
J. G.;
Ortmanns,
M.
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
May 2012
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
May 2012
143.
Witte,
P.;
Kauffman,
J. G.;
Brückner,
T.;
Becker,
J.;
Ortmanns,
M.
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
May 2012
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
May 2012
142.
Zahabi,
A.;
Jamal,
F.;
Becker,
J.;
Anis,
M.;
Ortmanns,
M.
Digitally-Switched Resonators for Bandpass Integrated Transmission Line Sigma Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
Digitally-Switched Resonators for Bandpass Integrated Transmission Line Sigma Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
141.
Zorn,
C.;
Widemann,
C.;
Brückner,
T.;
Ortmanns,
M.;
Mathis,
W.
Peaking Reduced STF Design for CT SD Modulators with Selective Pole Compensation
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
Peaking Reduced STF Design for CT SD Modulators with Selective Pole Compensation
IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea
May 2012
140.
Sooksood,
K.;
Ortmanns,
M.
Power Efficient Output Stage for High Density Implantable Stimulators
Electronics Letters, Vol. 48 (10)
May 2012
Power Efficient Output Stage for High Density Implantable Stimulators
Electronics Letters, Vol. 48 (10)
May 2012
139.
Witte,
P.;
Kauffman,
J. G.;
Becker,
J.;
Manoli,
Y.;
Ortmanns,
M.
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
February 2012
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
February 2012
138.
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
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.
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
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