Cart (Loading....) | Create Account
Close category search window
 

A low power fully integrated bandpass operational amplifier for biomedical neural recording applications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Mohseni, P. ; Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA ; Najafi, K.

This paper presents a low power fully integrated bandpass amplifier for a variety of biomedical neural recording applications. A standard two-stage CMOS amplifier in a closed-loop resistive feedback configuration provides stable AC gain of 39.5 dB at 1 kHz. A PMOS input transistor, biased near the sub-threshold region acting as a high value resistor in the range of hundreds of mega ohms, is utilized to clamp the large and random DC open circuit potential that normally exists at the electrode-electrolyte interface. The 3 dB bandwidth of the amplifier is measured to be 26 Hz - 6.5 kHz and the tolerable DC input range is measured to be at least 1 V. The amplifier measures 0.107 mm2 in die area and dissipates 133 μW from a 3 V power supply. It is fabricated in MOSIS AMI 1.5 μm double poly double metal n-well CMOS process. Bench tests show complete functionality of the amplifier in both light and dark conditions and for a wide range of recording electrode capacitance.

Published in:

Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint  (Volume:3 )

Date of Conference:

23-26 Oct. 2002

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.