Institut für Mikroelektronik

Publikationen - Prof. Dr.-Ing. M. Ortmanns

Artikel  Bücher  Patente

Artikel

2021

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
Januar 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
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
341.
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
Oktober 2020
340.
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
Oktober 2020
339.
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
Oktober 2020
338.
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
Oktober 2020
337.
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
Oktober 2020
336.
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
Oktober 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
Juli 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
Juli 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
DOI:10.1109/TCSI.2020.2986553
332.
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
März 2020
DOI:10.1109/TCSII.2020.2980748
331.
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)
März 2020
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
Februar 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
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
327.
Rajabzadeh, M.; Ungethüm, J.; Herkle, A.; Schilpp, C.; Fauler, M.; Wittekindt, O.; Ortmanns, M.
A 24-Ch. Multi-Electrode Array Allowing Fast EIS to Determine Transepithelial Electrical Resistance
2019 IEEE Biomedical Circuits and Systems Conference (BioCAS), Nara, Japan
Oktober 2019
326.
Mokhtar, M. A.; Vogelmann, P.; Haas, M.; Ortmanns, M.
A 94.3 dB SFDR, 91.5 dB DR, 200 kS/s CT Incremental Delta-Sigma Modulator with Differentially Reset FIR Feedback
IEEE Solid-State Circuits Letter, September 2019 - Presented on IEEE European Solid-State Circuits conference (ESSDERC/ESSCIRC), Krakow, Poland
September 2019
325.
Rajabzadeh, M.; Häberle, M.; Jain, A.; Ortmanns, M.
An Integrated Readout for Current Sensing Based on a Sigma Delta Modulator with Switched Capacitor Feedback
IEEE European Solid-State Circuits conference (ESSDERC/ESSCIRC), Krakow, Poland
September 2019
324.
Nikas, A.; Jambunathan, S.; Klein, L.; Völker, M.; Ortmanns, M.
A Continuous-Time Delta-Sigma Modulator Using a Modified Instrumentation Amplifier and Current Reuse DAC for Neural Recording
IEEE Journal of Solid-State Circuits PP(99):1-13
August 2019
DOI:10.1109/JSSC.2019.2931811
323.
Rajabzadeh, M.; Häberle, M.; Ortmanns, M.
Comparison of Direct Digitization Current Sensing Circuits for EIS
15th Conference on PhD Research in Microelectronics and Electronics (PRIME 2019), Lausanne, Switzerland
Juli 2019
322.
Rajabzadeh, M.; Ungethüm, J.; Mandry, H.; Schilpp, C.; Wittekindt, O.; Ortmanns, M.
An Evaluation Study of Various Excitation Signals for Electrical Impedance Spectroscopy
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan
Mai 2019
321.
Jain, A.; Abdelaal, A.; Ortmanns, M.
Effective Filtering of Requantization Error in Dual Quantized CTDSM using FIR DAC
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 1-5.
Mai 2019
320.
Chi, J.; Mandry, H.; Ortmanns, M.
Finite Gain-Bandwidth of Q Enhancement in Bandpass CT ΣΔ Modulator and Compensation
IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 1-5.
Mai 2019

Bücher

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
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
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
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
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

2007

4.
Ortmanns, M.; Buhmann, A.; Manoli, Y.
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

2005

2.
Ortmanns, M.; Gerfers, F.
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

Patente

  1. A. Herkle, J. Becker, M. Ortmanns
    [DE] Verfahren und Vorrichtung zur Erzeugung einer digitalen Signatur
    DE102016204055A1, Patent record available from the German Patent
    2016

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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