Novel Charge-Metering Stimulus Amplifier for Biomimetic Implantable Prosthesis
A novel charge-metering stimulus amplifier is proposed for high performance neural prosthesis stimulation. The new charge-based approach with feedback has low charge error 0.5%, low charge imbalance 0.2%, and high power efficiency. Charge-metering stimulus amplifier can be implemented using advanced...
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Format: | Tagungsbericht |
Sprache: | eng |
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Zusammenfassung: | A novel charge-metering stimulus amplifier is proposed for high performance neural prosthesis stimulation. The new charge-based approach with feedback has low charge error 0.5%, low charge imbalance 0.2%, and high power efficiency. Charge-metering stimulus amplifier can be implemented using advanced 0.18um CMOS technology and is compatible with Mixed-Signal System-on-a-Chip (SoC) implantable devices. It also has the capability to monitor the electrode-tissue contact quality and estimate the interface impedance in real-time for robust stimulation. |
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ISSN: | 0271-4302 2158-1525 |
DOI: | 10.1109/ISCAS.2007.378801 |