The University of Southampton
University of Southampton Institutional Repository

A New BIST Methodology for Fully-Balanced OTA-C Filters

A New BIST Methodology for Fully-Balanced OTA-C Filters
A New BIST Methodology for Fully-Balanced OTA-C Filters
Abstract - This paper proposes a new BIST structural testing methodology for fully-balanced OTA-C filters. The methodology is based on using a simple group-delay equaliser to emulate the function of the filter under test; any discrepancies resulting from comparing the filter and equaliser outputs indicates a faulty circuit. The test circuitry is designed using detailed analysis of the possible faults and their effects on the filter output, ensuring high fault coverage and minimisation of test accuracy dependence on manufacturing process variations. Furthermore, most of the test circuitry is digital, the analogue part requires only a single low-precision capacitor, and the frequency of the test stimulus does not need to be exact. Using simulation it has shown been that up to 98.6% fault coverage is possible when the proposed methodology is applied to a 4.5MHz Chebyshev low pass filter used as a test vehicle. The complete CMOS design of the self-testable filter is included. From actual layout, the estimated test circuitry area overhead is 20% which compares well with recently reported results.
Wilcock, R.
039894e9-f32d-49e0-9ebd-fb13bc489feb
Al-Hashimi, B. M.
0b29c671-a6d2-459c-af68-c4614dce3b5d
Wilcock, R.
039894e9-f32d-49e0-9ebd-fb13bc489feb
Al-Hashimi, B. M.
0b29c671-a6d2-459c-af68-c4614dce3b5d

Wilcock, R. and Al-Hashimi, B. M. (2002) A New BIST Methodology for Fully-Balanced OTA-C Filters At IEEE International Symposium on Circuits and Systems.

Record type: Conference or Workshop Item (Paper)

Abstract

Abstract - This paper proposes a new BIST structural testing methodology for fully-balanced OTA-C filters. The methodology is based on using a simple group-delay equaliser to emulate the function of the filter under test; any discrepancies resulting from comparing the filter and equaliser outputs indicates a faulty circuit. The test circuitry is designed using detailed analysis of the possible faults and their effects on the filter output, ensuring high fault coverage and minimisation of test accuracy dependence on manufacturing process variations. Furthermore, most of the test circuitry is digital, the analogue part requires only a single low-precision capacitor, and the frequency of the test stimulus does not need to be exact. Using simulation it has shown been that up to 98.6% fault coverage is possible when the proposed methodology is applied to a 4.5MHz Chebyshev low pass filter used as a test vehicle. The complete CMOS design of the self-testable filter is included. From actual layout, the estimated test circuitry area overhead is 20% which compares well with recently reported results.

PDF ISCAS2002.pdf - Other
Restricted to Registered users only
Download (242kB)

More information

Published date: July 2002
Additional Information: Submitted for publication
Venue - Dates: IEEE International Symposium on Circuits and Systems, 2002-07-01
Organisations: Electronic & Software Systems, EEE

Identifiers

Local EPrints ID: 255961
URI: http://eprints.soton.ac.uk/id/eprint/255961
PURE UUID: b3afec63-3660-4013-8605-28b375bf75a2

Catalogue record

Date deposited: 26 Jan 2004
Last modified: 18 Jul 2017 09:50

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×