bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)



25 Top Downloaded Articles

Editorial Calendar 2007

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers Journal's cover


Sensors & Transducers Journal 2006

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents


  Best Articles 2006




Vol. 84, Issue 10, October 2007, pp.1625-1632




A Low-Power Signal Processing Unit for in vivo Monitoring and Transmission of Sensor Signals



Department of Electrical and Computer Engineering

The University of Tennessee, Knoxville, TN 37996-2100, USA

E-mail: mhaider@utk.edu, sislam@utk.edu



Received: 29 September 2007   /Accepted: 23 October 2007   /Published: 30 October 2007


Abstract: A low-power signal processing and telemetry circuit for any generic biosensor applications has been presented. The complete system manifests a potentiostat, a signal processing block and a modulator block. The on-chip potentiostat biases the sensor electrodes for proper extraction of the sensor signals. The signal processing block integrates and buffers the sensor signal to make it a data signal and finally a simple modulator block converts this data signal to an on-off-keying (OOK) signal with a high frequency carrier. Package pin of the fabricated circuit is used as an antenna and measurement results demonstrate the successful signal transmission from the chip within a few cm ranges. The entire system has been realized using 0.35 μm CMOS technology that consumes only 400 μW of power and occupies an area of 0.66 mm2. Test results show that this scheme is an effective candidate for low-power sensor applications.


Keywords: Implantable, OOK signal, Low-power device, Transmitter


Acrobat reader logo Click <here> or title of paper to download the full pages article (625 Kb)





1999 - 2007 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - e-Shop - Membership

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - Site Map