John G. Kauffman

Publication Activity (10 Years)

Years Active: 2011-2024
Publications (10 Years): 23

Top Topics

High Resolution

Top Venues

IEEE J. Solid State Circuits

Publications

Ahmed Abdelaal, Michael Pietzko, Jonathan Ungethüm, John G. Kauffman, Maurits Ortmanns
Using Negative-R Assisted Integrators in Wide-band Delta-Sigma Modulators. ISCAS (2024)
Omar Ismail, Paul Kaesser, John G. Kauffman, Maurits Ortmanns
DAC Element Mismatch Shaping Algorithms in Incremental Delta-Sigma ADCs. ISCAS (2024)
Michael Pietzko, Jonathan Ungethüm, Ahmed Abdelaal, John G. Kauffman, Maurits Ortmanns
A 600MS/s 10-bit SAR ADC with unit via-based delta-length C-DAC in 22nm FDSOI. ISCAS (2024)
Michael Pietzko, Jonathan Ungethüm, John G. Kauffman, Maurits Ortmanns
Delay Error Shaping in ΔΣ Modulators Using Time-Interleaved High Resolution Quantizers. IEEE Trans. Circuits Syst. I Regul. Pap. 70 (7) (2023)
Matteo Dalla Longa, Francesco Conzatti, Tobias Hofmann, John G. Kauffman, Maurits Ortmanns
An Intrinsically Linear 13-Level Capacitive DAC for Delta Sigma Modulators. IEEE Trans. Circuits Syst. II Express Briefs 70 (4) (2023)
Jonathan Ungethüm, Michael Pietzko, Ahmed Abdelaal, John G. Kauffman, Maurits Ortmanns
A Chopped 6-bit 1.6 GS/s SAR ADC Utilizing Slow Decision Information in 22 nm FDSOI. ESSCIRC (2023)
Michael Pietzko, Julian Spiess, Jonathan Ungethüm, John G. Kauffman, Qiang Li, Maurits Ortmanns
Bitwise ELD Compensation under Integrator Nonidealities in ΔΣ Modulators. NEWCAS (2023)
Mohamed A. Mokhtar, Omar Ismail, Patrick Vogelmann, John G. Kauffman, Maurits Ortmanns
A 40 kS/sCalibration-Free Incremental △Σ ADC Achieving 104 dB DR and 105.7 dB SFDR. ESSCIRC (2023)
Markus Sporer, Stefan Reich, John G. Kauffman, Maurits Ortmanns
A Direct Digitizing Chopped Neural Recorder Using a Body-Induced Offset Based DC Servo Loop. IEEE Trans. Biomed. Circuits Syst. 16 (3) (2022)
Jonathan Ungethüm, Michael Pietzko, John G. Kauffman, Qiang Li, Maurits Ortmanns
Maximizing the Inter-Stage Gain in CT 0-X MASH Delta-Sigma-Modulators. ISCAS (2022)
Michael Pietzko, Jonathan Ungethüm, John G. Kauffman, Qiang Li, Maurits Ortmanns
Bitwise ELD Compensation in Δ∑ Modulators. ISCAS (2022)
Bjoern Driemeyer, Julian Spiess, John G. Kauffman, Maurits Ortmanns
Complexity Reduced LUT-Based DAC Correction in Continuous-Time Delta-Sigma Modulators. ISCAS (2022)
Mohamed A. Mokhtar, Ahmed Abdelaal, Markus Sporer, Joachim Becker, John G. Kauffman, Maurits Ortmanns
A 0.9-V DAC-Calibration-Free Continuous-Time Incremental Delta-Sigma Modulator Achieving 97-dB SFDR at 2 MS/s in 28-nm CMOS. IEEE J. Solid State Circuits 57 (11) (2022)
Jonathan Ungethüm, John G. Kauffman, Maurits Ortmanns
Digital Resolution Requirements in 0-X MASH Delta-Sigma-Modulators. ICECS (2021)
Michael Pietzko, Johannes Wagner, Ahmed Abdelaal, John G. Kauffman, Maurits Ortmanns
Influence of Excess Loop Delay on the STF of Continuous-Time Delta-Sigma Modulators. ISCAS (2021)
Jonathan Ungethüm, John G. Kauffman, Maurits Ortmanns
Minimizing Signal-Dependent Residue in CT Pipelined ADCs. MWSCAS (2021)
Ahmed Abdelaal, Michael Pietzko, Mohamed A. Mokhtar, John G. Kauffman, Maurits Ortmanns
FIR Filter with Symmetric Non-Equal Coefficients for CT Delta-Sigma Modulators. ISCAS (2021)
Mohamed A. Mokhtar, Ahmed Abdelaal, Markus Sporer, Joachim Becker, John G. Kauffman, Maurits Ortmanns
A 0.9-V Calibration-Free 97dB-SFDR 2-MS/s Continuous Time Incremental Delta-Sigma ADC Utilizing Variable Bit Width Quantizer in 28nm CMOS. CICC (2021)
Mohamed A. Mokhtar, Martin Merkle, John G. Kauffman, Maurits Ortmanns
A Comparative Study of Noise Behavior in Single-Opamp Resonators in Delta-Sigma Modulators. ICECS (2021)
Mohamed A. Mokhtar, Patrick Vogelmann, Ahmed Abdelaal, John G. Kauffman, Maurits Ortmanns
FIR DACs in CT Incremental Delta-Sigma Modulators. ISCAS (2020)
Ahmed Abdelaal, John G. Kauffman, Mohamed A. Mokhtar, Maurits Ortmanns
A Comparative Study of ISI Errors in Different DAC Structures for CT Delta-Sigma Modulators. ISCAS (2020)
Jens Sauerbrey, Jacinto San Pablo Garcia, Udo Schutz, Hasham Khushk, John G. Kauffman
A Multi-mode GSM to LTE100 ADC. ESSCIRC (2018)
Rudolf Ritter, John G. Kauffman, Joachim Becker, Maurits Ortmanns
A 10 MHz Bandwidth, 70 dB SNDR Continuous Time Delta-Sigma Modulator With Digitally Improved Reconfigurable Blocker Rejection. IEEE J. Solid State Circuits 51 (3) (2016)
Chao Chu, John G. Kauffman, Jens Anders, Joachim Becker, Maurits Ortmanns, Michael Epp, Sebastien Chartier
A 1.92-GS/s CT ΔΣ modulator with 70-db DR and 78-db SFDR in 15-MHz bandwidth. NEWCAS (2014)
John G. Kauffman, Pascal Witte, Matthias Lehmann, Joachim Becker, Yiannos Manoli, Maurits Ortmanns
A 72 dB DR, CT ΔΣ Modulator Using Digitally Estimated, Auxiliary DAC Linearization Achieving 88 fJ/conv-step in a 25 MHz BW. IEEE J. Solid State Circuits 49 (2) (2014)
John G. Kauffman, Rudolf Ritter, Chao Chu, Joachim Becker, Maurits Ortmanns
Low power quantizer design in CT Delta Sigma modulators. ISCAS (2013)
Rudolf Ritter, John G. Kauffman, Matthias Lorenz, Maurits Ortmanns
Integrator swing reduction in feedback compensated Sigma-Delta modulators. ISCAS (2013)
Chao Chu, Timon Brückner, John G. Kauffman, Jens Anders, Joachim Becker, Maurits Ortmanns
Analysis and design of high speed/high linearity continuous time delta-sigma modulator. ISCAS (2013)
John G. Kauffman, Rudolf Ritter, Chao Chu, Maurits Ortmanns
A DAC cell with improved ISI and noise performance using native switching for multi-bit CT Delta Sigma modulators. ISCAS (2013)
Pascal Witte, John G. Kauffman, Timon Brückner, Joachim Becker, Maurits Ortmanns
An error estimation technique for lowpass and bandpass ΣΔ ADC feedback DACs using a residual test signal. ISCAS (2012)
Pascal Witte, John G. Kauffman, Joachim Becker, Yiannos Manoli, Maurits Ortmanns
A 72dB-DR ΔΣ CT modulator using digitally estimated auxiliary DAC linearization achieving 88fJ/conv in a 25MHz BW. ISSCC (2012)
Rudolf Ritter, John G. Kauffman, Maurits Ortmanns
A power efficient MDAC design with correlated double sampling for a 2-step-flash ADC. ISCAS (2012)
John G. Kauffman, Timon Brückner, Maurits Ortmanns
PVT robust design of wideband CT delta sigma modulators including finite GBW compensation. MWSCAS (2012)
Daniel Angele, Martin Stein, John G. Kauffman, Maurits Ortmanns, Joachim Becker
A reconfigurable Continuous-Time ΔΣ-ADC using a digitally programmable gm-C array. MWSCAS (2012)
John G. Kauffman, Pascal Witte, Joachim Becker, Maurits Ortmanns
An 8mW 50MS/s CT ΔΣ modulator with 81dB SFDR and digital background DAC linearization. ISSCC (2011)
Pascal Witte, John G. Kauffman, Joachim Becker, Maurits Ortmanns
A Correlation-Based Background Error Estimation Technique for Bandpass Delta-Sigma ADC DACs. IEEE Trans. Circuits Syst. II Express Briefs (11) (2011)
John G. Kauffman, Pascal Witte, Joachim Becker, Maurits Ortmanns
An 8.5 mW Continuous-Time ΔΣ Modulator With 25 MHz Bandwidth Using Digital Background DAC Linearization to Achieve 63.5 dB SNDR and 81 dB SFDR. IEEE J. Solid State Circuits 46 (12) (2011)