Papers
2016
243.
Djekic,
D.;
Ortmanns,
M.;
Fantner,
G.;
Anders,
J.
Linearisierte Pseudo-Widerstände mit hoher Robustheit für die Raster-Ionenstrommikroskopie
Analogworkshop 2016, Leibniz Universität Hannover
March 2016
Linearisierte Pseudo-Widerstände mit hoher Robustheit für die Raster-Ionenstrommikroskopie
Analogworkshop 2016, Leibniz Universität Hannover
March 2016
242.
Handwerker,
J.;
Schlecker,
B.;
Wachter,
U.;
Radermacher,
P.;
Ortmanns,
M.;
Anders,
J.
A 14 GHz, battery operated, point-of-care ESR spectrometer based on a 130 nm CMOS ASIC
IEEE International Solid-State Circuits Conference (ISSCC 2016), San Francisco, CA, USA
January 2016
A 14 GHz, battery operated, point-of-care ESR spectrometer based on a 130 nm CMOS ASIC
IEEE International Solid-State Circuits Conference (ISSCC 2016), San Francisco, CA, USA
January 2016
241.
Pagin,
M.;
Haas,
M.;
Becker,
J.;
Ortmanns,
M.
Delta compression in time-multiplexed multichannel neural recorders
12th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), pp. 1-4, Lisbon, Portugal
2016
Delta compression in time-multiplexed multichannel neural recorders
12th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), pp. 1-4, Lisbon, Portugal
2016
2015
240.
Ritter,
R.;
Ortmanns,
M.
Continuous-Time Delta-Sigma ADCs With Improved Interferer Rejection
Emerging and Selected Topics in Circuits and Systems, IEEE Journal, vol.5, no.4, pp.500-513
December 2015
Continuous-Time Delta-Sigma ADCs With Improved Interferer Rejection
Emerging and Selected Topics in Circuits and Systems, IEEE Journal, vol.5, no.4, pp.500-513
December 2015
239.
Fahmy,
S.;
Dietl,
M.;
Sareen,
P.;
Ortmanns,
M.;
Anders,
J.
A BW-tracking semi-digital PLL with near-optimal VCO phase noise shaping in low-cost 0.4 μm CMOS achieving 700 fs rms phase jitter
IEEE Nordic Circuits and Systems Conference (NORCAS) 2015, Oslo, Norway
October 2015
A BW-tracking semi-digital PLL with near-optimal VCO phase noise shaping in low-cost 0.4 μm CMOS achieving 700 fs rms phase jitter
IEEE Nordic Circuits and Systems Conference (NORCAS) 2015, Oslo, Norway
October 2015
238.
Elkafrawy,
A.;
Anders,
J.;
Ortmanns,
M.
A 10-bit Reference Free Current Mode SAR ADC with 58.4 dB SFDR at 50 MS/s in 90 nm CMOS
IEEE Nordic Circuits and Systems Conference (NORCAS), Oslo, Norway
October 2015
A 10-bit Reference Free Current Mode SAR ADC with 58.4 dB SFDR at 50 MS/s in 90 nm CMOS
IEEE Nordic Circuits and Systems Conference (NORCAS), Oslo, Norway
October 2015
237.
Liu,
T.;
Anders,
J.;
Ortmanns,
M.
A Bidirectional Optical Transcutaneous Telemetric Link for Brain Machine Interface
Electronic letters
September 2015
A Bidirectional Optical Transcutaneous Telemetric Link for Brain Machine Interface
Electronic letters
September 2015
236.
Ritter,
R.;
Torta,
P.;
Dörrer,
L.;
Di Giandomenico,
A.;
Herzinger,
S.;
Ortmanns,
M.
A Multimode CT ΔΣ-Modulator with a Reconfigurable Digital Feedback Filter for Semi-Digital Blocker/Interferer Rejection
European Solid-State Circuits Conference (ESSCIRC), Graz, Austria
September 2015
A Multimode CT ΔΣ-Modulator with a Reconfigurable Digital Feedback Filter for Semi-Digital Blocker/Interferer Rejection
European Solid-State Circuits Conference (ESSCIRC), Graz, Austria
September 2015
235.
Elkafrawy,
A.;
Anders,
J.;
Ortmanns,
M.
Design and Validation of a Current Mode Based SAR ADC in 90 nm CMOS
Kleinheubacher Tagung, Miltenberg, Germany
September 2015
Design and Validation of a Current Mode Based SAR ADC in 90 nm CMOS
Kleinheubacher Tagung, Miltenberg, Germany
September 2015
234.
Lorenz,
M.;
Becker,
J.;
Ortmanns,
M.
A Hybrid of Unscented Kalman Filter and Genetic Algorithm for State and Parameter Estimation in Sigma-Delta Modulators
Electronics Letters, IEEE
August 2015
A Hybrid of Unscented Kalman Filter and Genetic Algorithm for State and Parameter Estimation in Sigma-Delta Modulators
Electronics Letters, IEEE
August 2015
233.
Handwerker,
J.;
Eschelbach,
M.;
Hoffmann,
A.;
Ortmanns,
M.;
Scheffler,
K.;
Anders,
J.
An Array of Active TX/RX 19F NMR Field Probes for Gradient Trajectory Mapping
Euromar 2015, Prague, Czech Republic
July 2015
An Array of Active TX/RX 19F NMR Field Probes for Gradient Trajectory Mapping
Euromar 2015, Prague, Czech Republic
July 2015
232.
Elkafrawy,
A.;
Anders,
J.;
Ortmanns,
M.
A 10-bit 150 MS/s Current Mode SAR ADC in 90 nm CMOS
11th IEEE Conference on PhD Research in Microelectronics and Electronics (IEEE PRIME 2015), Glasgow, Scotland, United Kingdom
June 2015
A 10-bit 150 MS/s Current Mode SAR ADC in 90 nm CMOS
11th IEEE Conference on PhD Research in Microelectronics and Electronics (IEEE PRIME 2015), Glasgow, Scotland, United Kingdom
June 2015
231.
Al Marashli,
A.;
Anders,
J.;
Ortmanns,
M.
Design study on a SAR ADC using an incremental sigma-delta-DAC
11th Conference on PhD Research in Microelectronics and Electronics (IEEE PRIME 2015), Glasgow, Scotland, United Kingdom
June 2015
Design study on a SAR ADC using an incremental sigma-delta-DAC
11th Conference on PhD Research in Microelectronics and Electronics (IEEE PRIME 2015), Glasgow, Scotland, United Kingdom
June 2015
230.
Chu,
C.;
Anders,
J.;
Becker,
J.;
Ortmanns,
M.
Finite GBW Compensation Technique for CT Delta-Sigma Modulators with Differentiator Based ELD Compensation
IEEE NEWCAS 2015, Grenoble, France
June 2015
Finite GBW Compensation Technique for CT Delta-Sigma Modulators with Differentiator Based ELD Compensation
IEEE NEWCAS 2015, Grenoble, France
June 2015
229.
Ritter,
R.;
Lorenz,
M.;
Ortmanns,
M.
Anti-Aliasing Filter Improvement in Continuous-Time Feedback Sigma-Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Lisbon, Portugal
May 2015
Anti-Aliasing Filter Improvement in Continuous-Time Feedback Sigma-Delta Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Lisbon, Portugal
May 2015
228.
Lorenz,
M.;
Ritter,
R.;
Anders,
J.;
Ortmanns,
M.
Estimation of Non-Idealities in Sigma-Delta Modulators for Test and Correction Using Unscented Kalman Filters
Circuits and Systems I: Regular Papers, IEEE Transactions on
March 2015
Estimation of Non-Idealities in Sigma-Delta Modulators for Test and Correction Using Unscented Kalman Filters
Circuits and Systems I: Regular Papers, IEEE Transactions on
March 2015
227.
Schlecker,
B.;
Eichel,
A.;
Ortmanns,
M.;
Fantner,
G.;
Anders,
J.
Modeling and Design of high-speed FM-AFM driver electronics using Cadence Virtuoso® and Simulink®
8th Vienna International Conferenceon Mathematical Modelling — MATHMOD
February 2015
Modeling and Design of high-speed FM-AFM driver electronics using Cadence Virtuoso® and Simulink®
8th Vienna International Conferenceon Mathematical Modelling — MATHMOD
February 2015
2014
226.
Elkafrawy,
A.;
Al Marashli,
A.;
Ritter,
R.;
Anders,
J.;
Ortmanns,
M.
Design of a High Linearity Gm Stage for a High Speed Current Mode SAR ADC
21st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Marseille, France
December 2014
Design of a High Linearity Gm Stage for a High Speed Current Mode SAR ADC
21st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Marseille, France
December 2014
225.
Al Marashli,
A.;
Anders,
J.;
Ortmanns,
M.
Employing Incremental Sigma Delta DACs for High Resolution SAR ADC
21st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Marseille, France
December 2014
Employing Incremental Sigma Delta DACs for High Resolution SAR ADC
21st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Marseille, France
December 2014
224.
Völker,
M.;
Pashmineh,
S.;
Hauer,
J.;
Ortmanns,
M.
Current Feedback Linearization Applied to Oscillator Based ADCs
IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 61, no. 11, pp. 3066-3074
November 2014
Current Feedback Linearization Applied to Oscillator Based ADCs
IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 61, no. 11, pp. 3066-3074
November 2014
223.
Xu,
H.;
Handwerker,
J.;
Ortmanns,
M.
Telemetry for Implantable Medical Devices: Part 2 – Power Telemetry
IEEE Solid State Circuits Society Magazine, Vol. 6, No. 3, pp. 60 – 63
November 2014
Telemetry for Implantable Medical Devices: Part 2 – Power Telemetry
IEEE Solid State Circuits Society Magazine, Vol. 6, No. 3, pp. 60 – 63
November 2014
222.
Bihr,
U.;
Haas,
M.;
Anders,
J.;
Ortmanns,
M.
Comparison of Different Compression Schemes for Neural Spike Signals
BMT 2014, Hannover, Germany
October 2014
Comparison of Different Compression Schemes for Neural Spike Signals
BMT 2014, Hannover, Germany
October 2014
221.
Handwerker,
J.;
Hoffmann,
A.;
Eschelbach,
M.;
Scheffler,
K.;
Ortmanns,
M.;
Anders,
J.
A distributed active NMR sensor array for artifact correction in ultra high field MRI applications
48th annual conference of the German Society for Biomedical Engineering, Hannover, Germany
October 2014
A distributed active NMR sensor array for artifact correction in ultra high field MRI applications
48th annual conference of the German Society for Biomedical Engineering, Hannover, Germany
October 2014
220.
Liu,
T.;
Anders,
J.;
Ortmanns,
M.
Design of an Optical Transcutaneous Forward Data Telemetry for Brain Machine Interface
48th annual conference of the German Society for Biomedical Engineering, Hannover, Germany
October 2014
Design of an Optical Transcutaneous Forward Data Telemetry for Brain Machine Interface
48th annual conference of the German Society for Biomedical Engineering, Hannover, Germany
October 2014
219.
Liu,
T.;
Bihr,
U.;
Becker,
J.;
Anders,
J.;
Ortmanns,
M.
In Vivo Verification of a 100 Mbps Transcutaneous Optical Telemetric Link
IEEE/CAS-EMB Biomedical Circuits and Systems Conference 2014, Lausanne, Switzerland
October 2014
In Vivo Verification of a 100 Mbps Transcutaneous Optical Telemetric Link
IEEE/CAS-EMB Biomedical Circuits and Systems Conference 2014, Lausanne, Switzerland
October 2014
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