Papers
2021
352.
Sporer,
M.;
Graber,
N.;
Moll,
S.;
Reich,
S.;
Ortmanns,
M.
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.
July 2021
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.
July 2021
351.
Müelich,
S.;
Mandry,
H.;
Ortmanns,
M.;
Fischer,
R.
A Multilevel Coding Scheme for Multi-Valued Physical Unclonable Functions
IEEE Transactions on Information Forensics and Security
June 2021
A Multilevel Coding Scheme for Multi-Valued Physical Unclonable Functions
IEEE Transactions on Information Forensics and Security
June 2021
| DOI: | 10.1109/TIFS.2021.3089883 |
350.
Reich,
S.;
Sporer,
M.;
Ortmanns,
M.
A Chopped Neural Front-end featuring Input Impedance Boosting with suppressed offset-induced charge transfer
IEEE Transactions on Biomedical Circuits and Systems
May 2021
A Chopped Neural Front-end featuring Input Impedance Boosting with suppressed offset-induced charge transfer
IEEE Transactions on Biomedical Circuits and Systems
May 2021
| DOI: | 10.1109/TBCAS.2021.3080398 |
349.
Mandry,
H.;
Müelich,
S.;
Becker,
J.;
Fischer,
R.;
Ortmanns,
M.
Using Polynomial Interpolation for Reproducing Multi-Valued Responses of Physical Unclonable Functions on FPGAs
IEEE International Symposium on Circuits and Systems (ISCAS)
May 2021
Using Polynomial Interpolation for Reproducing Multi-Valued Responses of Physical Unclonable Functions on FPGAs
IEEE International Symposium on Circuits and Systems (ISCAS)
May 2021
| DOI: | 10.1109/ISCAS51556.2021.9401501 |
348.
Abdelaal,
A.;
Pietzko,
M.;
Mokhtar,
M. A.;
Kauffman,
J. G.;
Ortmanns,
M.
FIR filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea (Online)
May 2021
FIR filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea (Online)
May 2021
347.
Pietzko,
M.;
Wagner,
J.;
Abdelaal,
A.;
Kauffman,
J. G.;
Ortmanns,
M.
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)
May 2021
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)
May 2021
346.
Mokhtar,
M. A.;
Abdelaal,
A.;
Sporer,
M.;
Becker,
J.;
Kauffman,
J. G.;
Ortmanns,
M.
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)
April 2021
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)
April 2021
345.
Rajabzadeh,
M.;
Ungethüm,
J.;
Herkle,
A.;
Schilpp,
C.;
Becker,
J.;
Fauler,
M.;
Wittekindt,
O.;
Frick,
M.;
Ortmanns,
M.
A PCB Based 24-Ch. MEA-EIS Allowing Fast Measurement of TEER
IEEE Sensor Journal
March 2021
A PCB Based 24-Ch. MEA-EIS Allowing Fast Measurement of TEER
IEEE Sensor Journal
March 2021
| DOI: | 10.1109/JSEN.2021.3067823 |
344.
Luo,
Y.;
Ortmanns,
M.
Input Referred Noise of VCO-Based Comparators
IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 1, pp. 82-86
January 2021
Input Referred Noise of VCO-Based Comparators
IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 1, pp. 82-86
January 2021
| DOI: | 10.1109/TCSII.2020.3008260 |
343.
Conrad,
J.;
Jiang,
B.;
Kässer,
P.;
Belagiannis,
V.;
Ortmanns,
M.
Nonlinearity Modeling for Mixed-Signal Inference Accelerators in Training Frameworks
28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), pp. 1-4
2021
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.
Wagner,
J.;
Vogelmann,
P.;
Ortmanns,
M.
An Automated Design Environment for CT Incremental Sigma-Delta ADCs
27th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
November 2020
An Automated Design Environment for CT Incremental Sigma-Delta ADCs
27th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
November 2020
341.
Herkle,
A.;
Rossak,
P.;
Mandry,
H.;
Becker,
J.;
Ortmanns,
M.
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
October 2020
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
October 2020
340.
Herkle,
A.;
Mandry,
H.;
Becker,
J.;
Ortmanns,
M.
Live Demonstration: Generating FPGA Fingerprints utilizing Full-Chip Characterization with Ring-Oscillator PUFs
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
October 2020
Live Demonstration: Generating FPGA Fingerprints utilizing Full-Chip Characterization with Ring-Oscillator PUFs
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
October 2020
339.
Reich,
S.;
Sporer,
M.;
Ortmanns,
M.
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
October 2020
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
October 2020
338.
Abdelaal,
A.;
Kauffman,
J. G.;
Mokhtar,
M. A.;
Ortmanns,
M.
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
October 2020
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
October 2020
337.
Herkle,
A.;
Mandry,
H.;
Becker,
J.;
Reich,
S.;
Sporer,
M.;
Ortmanns,
M.
Extracting Weak PUFs from Differential Nonlinearity of Digital-to-Analog Converters
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
October 2020
Extracting Weak PUFs from Differential Nonlinearity of Digital-to-Analog Converters
IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain
October 2020
336.
Mokhtar,
M. A.;
Vogelmann,
P.;
Abdelaal,
A.;
Kauffman,
J. G.;
Ortmanns,
M.
FIR DACs in CT Incremental Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
FIR DACs in CT Incremental Delta-Sigma Modulators
IEEE International Symposium on Circuits and Systems (ISCAS), Sevilla, Spain
October 2020
335.
Vogelmann,
P.;
Wagner,
J.;
Ortmanns,
M.
A 14b, Twofold Time-Interleaved Incremental ΔΣ ADC Using Hardware Sharing
IEEE Transactions on Circuits and Systems I: Regular Papers
July 2020
A 14b, Twofold Time-Interleaved Incremental ΔΣ ADC Using Hardware Sharing
IEEE Transactions on Circuits and Systems I: Regular Papers
July 2020
| DOI: | 10.1109/TCSI.2020.3011362 |
334.
Rajabzadeh,
M.;
Häberle,
M.;
Becker,
J.;
Ortmanns,
M.
Comparison Study of DAC Realizations in Current Input CTΣΔ Modulators
IEEE Transactions on Circuits and Systems II: Express Briefs
July 2020
Comparison Study of DAC Realizations in Current Input CTΣΔ Modulators
IEEE Transactions on Circuits and Systems II: Express Briefs
July 2020
| DOI: | 10.1109/TCSII.2020.3007964 |
333.
Conrad,
J.;
Vogelmann,
P.;
Mokhtar,
M. A.;
Ortmanns,
M.
Design Approach for Ring Amplifiers
IEEE Transactions on Circuits and Systems I: Regular Papers
April 2020
Design Approach for Ring Amplifiers
IEEE Transactions on Circuits and Systems I: Regular Papers
April 2020
| DOI: | 10.1109/TCSI.2020.2986553 |
332.
Wagner,
J.;
Vogelmann,
P.;
Ortmanns,
M.
Performance Evaluation of Incremental Sigma-Delta ADCs Based on their NTF
IEEE Transactions on Circuits and Systems—II: Express Briefs (Early Access)
March 2020
Performance Evaluation of Incremental Sigma-Delta ADCs Based on their NTF
IEEE Transactions on Circuits and Systems—II: Express Briefs (Early Access)
March 2020
331.
Mandry,
H.;
Herkle,
A.;
Müelich,
S.;
Becker,
J.;
Fischer,
R.;
Ortmanns,
M.
Normalization and Multi-Valued Symbol Extraction from RO-PUFs for Enhanced Uniform Probability Distributions
IEEE Transactions on Circuits and Systems--II: Express Briefs
March 2020
Normalization and Multi-Valued Symbol Extraction from RO-PUFs for Enhanced Uniform Probability Distributions
IEEE Transactions on Circuits and Systems--II: Express Briefs
March 2020
| DOI: | 10.1109/TCSII.2020.2980748 |
330.
Qi,
L.;
Jain,
A.;
Jiang,
D.;
Sin,
S.-W.;
Martins,
R. P.;
Ortmanns,
M.
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
February 2020
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
February 2020
| DOI: | 10.1109/JSSC.2019.2942359 |
329.
Lanniel,
A.;
Boeser,
T.;
Alpert,
T.;
Ortmanns,
M.
Noise Analysis of Charge-Balanced Readout Circuits for MEMS Accelerometers
IEEE Transactions on Circuits and Systems I: Regular Papers
2020
Noise Analysis of Charge-Balanced Readout Circuits for MEMS Accelerometers
IEEE Transactions on Circuits and Systems I: Regular Papers
2020
| DOI: | 10.1109/TCSI.2020.3034159 |
2019
328.
Wagner,
J.;
Vogelmann,
P.;
Ortmanns,
M.
On the Signal Filtering Property of CT Incremental Sigma-Delta ADCs
IEEE Transactions on Circuits and Systems—II: Express Briefs
November 2019
On the Signal Filtering Property of CT Incremental Sigma-Delta ADCs
IEEE Transactions on Circuits and Systems—II: Express Briefs
November 2019
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