Maurits Ortmanns

Continuous time sigma-delta A/D conversion : fundamentals, performance limits and robust implementations

Maurits Ortmanns, Friedel Gerfers · 2006 · 216 citations

Performance Limits, Engineering, Measurement +5

A Neural Stimulator Frontend With High-Voltage Compliance and Programmable Pulse Shape for Epiretinal Implants

Emilia Noorsal, Kriangkrai Sooksood, Hongcheng Xu et al. · IEEE Journal of Solid-State Circuits · 2011 · 206 citations

Medical Electronics, Engineering, Neuromodulation Therapies +26

An Active Approach for Charge Balancing in Functional Electrical Stimulation

Kriangkrai Sooksood, Thomas Stieglitz, Maurits Ortmanns · IEEE Transactions on Biomedical Circuits and Systems · 2010 · 165 citations

Stimulation Device, Electrical Engineering, Excess Charge Accumulation +11

A continuous-time /spl Sigma//spl Delta/ Modulator with reduced sensitivity to clock jitter through SCR feedback

Maurits Ortmanns, Friedel Gerfers, Yiannos Manoli · IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications · 2005 · 150 citations

Reduced Sensitivity, High Sensitivity, Clock Recovery +9

A Comparative Study on Excess-Loop-Delay Compensation Techniques for Continuous-Time Sigma–Delta Modulators

Matthias Keller, Alexander Buhmann, J. Sauerbrey et al. · IEEE Transactions on Circuits and Systems I Regular Papers · 2008 · 128 citations

Excess Loop Delay, Continuous-time Sigma-delta Modulators, Data Converter +8