publication . Contribution for newspaper or weekly magazine . Conference object . 2017

An analog integrated front-end amplifier for neural applications

Zhijun Zhou; Paul A Warr;
Open Access English
  • Published: 20 Jan 2017
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • Country: United Kingdom
Abstract
<p>The front-end amplifier forms the critical element for signal detection and pre-processing within neural monitoring systems. It determines not only the fidelity of the biosignal, but also impacts power consumption and detector size. In this paper, a combined feedback loop-controlled approach is proposed to neutralize for the input leakage currents generated by low noise amplifiers when in integrated circuit form, alongside signal leakage into the input bias network. Significantly, this loop topology ensures the front-end amplifier maintains a high input impedance across all manufacturing and operational variations. Furthermore, this feedback loop provides the...
Subjects
free text keywords: analog integrated circuits, biomedical signal processing, CMOS technology, Low-noise amplifiers, neural recording, Amplifier, Front and back ends, CMOS, Input impedance, Biosignal, Computer science, Feedback loop, Electronic engineering, Integrated circuit, law.invention, law, Detector
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Contribution for newspaper or weekly magazine . 2017
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