Current feedback neural amplifier with real time electrode offset suppression
File(s)MWSCAS_NeuralAmp_v1_7.pdf (481.38 KB)
Accepted version
Author(s)
Mirza, Khalid B
Kulasekeram, Nishanth
Toumazou, Christofer
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.
Date Issued
2017-09-01
Date Acceptance
2017-07-05
Citation
2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS), 2017, pp.1077-1080
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
Commission of the European Communities
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000424694700270&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
319818
Source
International Midwest Symposium on Circuits and Systems (MWSCAS)
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Telecommunications
Engineering
Publication Status
Published
Start Date
2017-08-06
Finish Date
2017-08-09
Coverage Spatial
Tufts Univ, Medford Somerville Campus, Boston, MA, USA
Date Publish Online
2017-10-02