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An automatic gain control amplifier for high voltage spindle recording
Conference paper

An automatic gain control amplifier for high voltage spindle recording

Wei-Han Chen and Kea-Tiong Tang
EDSSC 2017 - 13th IEEE International Conference on Electron Devices and Solid-State Circuits, Vol.2017-January, pp.1-2
12/2017
DOI: https://doi.org/10.1109/EDSSC.2017.8126500

Abstract

Closed-loop system Implantable micro system Low-noise amplifiers Neural amplifier Electronic Optical and Magnetic Materials Hardware and Architecture Electrical and Electronic Engineering
In this work, an automatic gain control amplifier for high voltage spindle recording is proposed. It is composed of a fix-gain amplifier and a variable gain amplifier (VGA) with threshold detecting logic to control the gain of VGA. The system provides 3 different gain set: 54dB, 60dB and 66dB. The bandwidth of the system covers from 0.5Hz to 1.5 KHz. The power is 7.7uW, and the integral input referred noise is 5.5uV. With the threshold detecting logic, the system can avoid saturation when high voltage spindle happens.

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