Artikel
2021
354.
J. Wagner,
T. Miki and
M. Ortmanns,
"Compensation of Finite GBW in CT Baddpass SDMs Based on Single-OpAmp Resonators with Positive-Feedback",
IEEE 64th International Midwest Symposium on Circuits and Systems (MWSCAS),
Aug.
2021.
353.
J. Ungethüm,
J. G. Kauffman and
M. Ortmanns,
"Minimizing Signal-Dependent Residue in CT Pipelined ADCs",
2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS),
Aug.
2021.
352.
M. Sporer,
N. Graber,
S. Moll,
S. Reich and
M. Ortmanns,
"Implementation of a Low Power Decimation Filter in a 180 nm HV-CMOS Technology for a Neural Recording Front-End",
SMACD / PRIME 2021; International Conference on SMACD and 16th Conference on PRIME, pp. 1-4.,
Jul.
2021.
351.
S. Müelich,
H. Mandry,
M. Ortmanns and
R. Fischer,
"A Multilevel Coding Scheme for Multi-Valued Physical Unclonable Functions",
IEEE Transactions on Information Forensics and Security,
Jun.
2021.
| DOI: | 10.1109/TIFS.2021.3089883 |
350.
S. Reich,
M. Sporer and
M. Ortmanns,
"A Chopped Neural Front-end featuring Input Impedance Boosting with suppressed offset-induced charge transfer",
IEEE Transactions on Biomedical Circuits and Systems,
Mai
2021.
| DOI: | 10.1109/TBCAS.2021.3080398 |
349.
A. Abdelaal,
M. Pietzko,
M. A. Mokhtar,
J. G. Kauffman and
M. Ortmanns,
"FIR filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea (Online),
Mai
2021.
348.
M. Pietzko,
J. Wagner,
A. Abdelaal,
J. G. Kauffman and
M. Ortmanns,
"Influence of Excess Loop Delay on the STF of Continuous-Time Delta-Sigma Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea (Online),
Mai
2021.
347.
H. Mandry,
S. Müelich,
J. Becker,
R. Fischer and
M. Ortmanns,
"Using Polynomial Interpolation for Reproducing Multi-Valued Responses of Physical Unclonable Functions on FPGAs",
IEEE International Symposium on Circuits and Systems (ISCAS),
Mai
2021.
| DOI: | 10.1109/ISCAS51556.2021.9401501 |
346.
M. A. Mokhtar,
A. Abdelaal,
M. Sporer,
J. Becker,
J. G. Kauffman and
M. Ortmanns,
"A 0.9-V Calibration-Free 97dB-SFDR 2-MS/s ContinuousTime Incremental Delta-Sigma ADC Utilizing Variable Bit-Width Quantizer in 28nm CMOS",
IEEE Custom Integrated Circuits Conference (CICC), Texas, USA (Virtual),
Apr.
2021.
345.
M. Rajabzadeh,
J. Ungethüm,
A. Herkle,
C. Schilpp,
J. Becker,
M. Fauler,
O. Wittekindt,
M. Frick and
M. Ortmanns,
"A PCB Based 24-Ch. MEA-EIS Allowing Fast Measurement of TEER",
IEEE Sensor Journal,
Mä.
2021.
| DOI: | 10.1109/JSEN.2021.3067823 |
344.
Y. Luo and
M. Ortmanns,
"Input Referred Noise of VCO-Based Comparators",
IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 1, pp. 82-86,
Jan.
2021.
| DOI: | 10.1109/TCSII.2020.3008260 |
343.
J. Conrad,
B. Jiang,
P. Kässer,
V. Belagiannis and
M. Ortmanns,
"Nonlinearity Modeling for Mixed-Signal Inference Accelerators in Training Frameworks",
28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), pp. 1-4,
2021.
| DOI: | 10.1109/ICECS53924.2021.9665503 |
2020
342.
J. Wagner,
P. Vogelmann and
M. Ortmanns,
"An Automated Design Environment for CT Incremental Sigma-Delta ADCs",
27th IEEE International Conference on Electronics, Circuits and Systems (ICECS),
Nov.
2020.
341.
A. Abdelaal,
J. G. Kauffman,
M. A. Mokhtar and
M. Ortmanns,
"A Comparative Study of ISI Errors in Different DAC Structures for CT Delta-Sigma Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain,
Okt.
2020.
340.
S. Reich,
M. Sporer and
M. Ortmanns,
"A self-compensated, low-offset Voltage Buffer for Input Impedance Boosting in Chopped Neural Front-ends",
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain,
Okt.
2020.
339.
A. Herkle,
P. Rossak,
H. Mandry,
J. Becker and
M. Ortmanns,
"Comparison of measurement and readout strategies for RO-PUFs on Xilinx Zynq-7000 SoC FPGAs",
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain,
Okt.
2020.
338.
A. Herkle,
H. Mandry,
J. Becker,
S. Reich,
M. Sporer and
M. Ortmanns,
"Extracting Weak PUFs from Differential Nonlinearity of Digital-to-Analog Converters",
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain,
Okt.
2020.
337.
M. A. Mokhtar,
P. Vogelmann,
A. Abdelaal,
J. G. Kauffman and
M. Ortmanns,
"FIR DACs in CT Incremental Delta-Sigma Modulators",
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain,
Okt.
2020.
336.
A. Herkle,
H. Mandry,
J. Becker and
M. Ortmanns,
"Live Demonstration: Generating FPGA Fingerprints utilizing Full-Chip Characterization with Ring-Oscillator PUFs",
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain,
Okt.
2020.
335.
P. Vogelmann,
J. Wagner and
M. Ortmanns,
"A 14b, Twofold Time-Interleaved Incremental ΔΣ ADC Using Hardware Sharing",
IEEE Transactions on Circuits and Systems I: Regular Papers,
Jul.
2020.
| DOI: | 10.1109/TCSI.2020.3011362 |
334.
M. Rajabzadeh,
M. Häberle,
J. Becker and
M. Ortmanns,
"Comparison Study of DAC Realizations in Current Input CTΣΔ Modulators",
IEEE Transactions on Circuits and Systems II: Express Briefs,
Jul.
2020.
| DOI: | 10.1109/TCSII.2020.3007964 |
333.
J. Conrad,
P. Vogelmann,
M. A. Mokhtar and
M. Ortmanns,
"Design Approach for Ring Amplifiers",
IEEE Transactions on Circuits and Systems I: Regular Papers,
Apr.
2020.
| DOI: | 10.1109/TCSI.2020.2986553 |
332.
H. Mandry,
A. Herkle,
S. Müelich,
J. Becker,
R. Fischer and
M. Ortmanns,
"Normalization and Multi-Valued Symbol Extraction from RO-PUFs for Enhanced Uniform Probability Distributions",
IEEE Transactions on Circuits and Systems--II: Express Briefs,
Mä.
2020.
| DOI: | 10.1109/TCSII.2020.2980748 |
331.
J. Wagner,
P. Vogelmann and
M. Ortmanns,
"Performance Evaluation of Incremental Sigma-Delta ADCs Based on their NTF",
IEEE Transactions on Circuits and Systems—II: Express Briefs (Early Access),
Mä.
2020.
330.
L. Qi,
A. Jain,
D. Jiang,
S. -. Sin,
R. P. Martins and
M. Ortmanns,
"A 76.6-dB-SNDR 50-MHz-BW 29.2-mW Multi-Bit CT Sturdy MASH With DAC Non-Linearity Tolerance",
IEEE Journal of Solid-State Circuits,
Feb.
2020.
| DOI: | 10.1109/JSSC.2019.2942359 |
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