Biopotential Readout Circuits for Portable Acquisition Systems (eBook)

Acknowledgments. Symbols and Abbreviations. 1 Introduction. 1.1 Ambulatory Health Care Systems. 1.2 Body Area Networks. 1.3 Scope of the Book. 2 Introduction to Biopotential Acquisition. 2.1 Introduction. 2.2 Introduction to Biopotential Signals. 2.3 Introduction to Biopotential Electrodes. 2.4 Introduction to Biopotential Amplifiers. 2.5 Introduction to Chopper Modulation Technique. 2.6 Conclusions. 3 24-Channel EEG Readout Front-End ASIC. 3.1 Introduction. 3.2 ASIC Architecture. 3.3 Current Feedback IA. 3.4 CMRR Model for Biopotential Instrumentation Amplifiers. 3.5 Programmable Gain Stage. 3.6 Test Results. 3.7 Conclusions. 4 Biopotential Readout Front-End ASICs. 4.1 Introduction. 4.2 AC Coupled Chopper Stabilized IA (ACCIA). 4.3 Chopping Spike Filter (CSF). 4.4 Low-Power Programmable Gain Stage. 4.5 Single-Channel ExG Readout Front-End. 4.6 Eight-Channel EEG Readout Front-End. 4.7 Comparison with the State-of-the-Art. 4.8 Conclusions. 5 A Complete Biopotential Acquisition ASIC. 5.1 Introduction. 5.2 ASIC Architecture. 5.3 Bias Generator Circuit. 5.4 Class-AB Buffer Architecture. 5.5 ACCIA with Coarse-Fine Servo-Loop. 5.6 Chopping Spike Filter. 5.7 Low-Power Programmable Gain Stage. 5.8 Readout Front-End Channel Test Results. 5.9 Square Wave Relaxation Oscillator. 5.10 Analog-to-Digital Converter. 5.11 Impedance Measurement and Calibration Modes. 5.12 Biological Test Results. 5.13 Summary of the Biopotential Acquisition ASIC. 5.14 Conclusions. 6 Wireless Biopotential Acquisition Systems. 6.1 Introduction. 6.2 A Wireless VEMP Acquisition System. 6.3 A Wireless Two-Channel ExG Acquisition System. 6.4 A 1cm3 Wireless Eight-Channel EEG Acquisition System. 6.5 Conclusions. 7 Conclusions. Appendix. References. Index.