Current feedback neural amplifier with real time electrode offset suppression

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Title: Current feedback neural amplifier with real time electrode offset suppression
Authors: Mirza, KB
Kulasekeram, N
Toumazou, C
Item Type: Conference Paper
Abstract: This paper describes a direct coupled neural amplifier with active electrode offset suppression in order to avoid large coupling capacitors and complex chopper circuits. It describes a novel feedback scheme, where a low pass current mode feedback is applied to a regulated telescopic cascode amplifier, at the cascode nodes by using a modified transconductance block. This solution leads to fully differential input-differential output direct coupled neural amplifier, achieving a DC offset suppression range of ±200 mV, a chip area of 0.078 mm 2 per channel and an input referred noise of 2.5 μV rms over 1 Hz-5kHz bandwidth.
Issue Date: 1-Sep-2017
Date of Acceptance: 5-Jul-2017
ISBN: 9781509063895
ISSN: 1548-3746
Publisher: IEEE
Start Page: 1077
End Page: 1080
Journal / Book Title: 2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS)
Copyright Statement: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor/Funder: Commission of the European Communities
Funder's Grant Number: 319818
Conference Name: International Midwest Symposium on Circuits and Systems (MWSCAS)
Keywords: Science & Technology
Engineering, Electrical & Electronic
Publication Status: Published
Start Date: 2017-08-06
Finish Date: 2017-08-09
Conference Place: Tufts Univ, Medford Somerville Campus, Boston, MA, USA
Online Publication Date: 2017-10-02
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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