Print Email Facebook Twitter High-Pass ΣΔ Converter Design Using a State-Space Approach and Its Application to Cardiac Signal Acquisition Title High-Pass ΣΔ Converter Design Using a State-Space Approach and Its Application to Cardiac Signal Acquisition Author Rout, S. (TU Delft Bio-Electronics) Serdijn, W.A. (TU Delft Bio-Electronics) Date 2018 Abstract Cardiac signal acquisition with high linearity and accuracy of the high-pass cut-off frequency imposes a challenge on the implementation of the analog preprocessing and the analog-to-digital converter. This paper describes a state-space-based methodology for designing high-pass sigma-delta (HP Sigma \Delta topologies with high linearity, targeting high accuracy of the high-pass cut-off frequency. Intermediate functions are evaluated mathematically to compare the proposed HP \Sigma \Delta topologies with respect to dynamic range. A sensitivity performance analysis of the noise transfer function with respect to integrator nonidealities and coefficient variations is also described. Finally, to illustrate the design approach, an orthonormal HP \Sigma \Delta modulator is designed to be implemented in 0.18 \mum CMOS technology, is tested with real prerecorded ECG signals. Subject baseline wanderingECGhigh-pass sigma-delta converterintermediate functionsorthonormalsensitivitystate-space synthesis To reference this document use: http://resolver.tudelft.nl/uuid:58e2e615-33a6-4695-99f9-54935f7a10a7 DOI https://doi.org/10.1109/TBCAS.2018.2817926 ISSN 1932-4545 Source IEEE Transactions on Biomedical Circuits and Systems, 12 (3), 483-494 Bibliographical note Accepted author manuscript Part of collection Institutional Repository Document type journal article Rights © 2018 S. Rout, W.A. Serdijn Files PDF 51830002_FINAL_VERSION.pdf 1.65 MB Close viewer /islandora/object/uuid:58e2e615-33a6-4695-99f9-54935f7a10a7/datastream/OBJ/view