An On-Chip Spectrum Analyzer for Analog Built-In Testing

  • Authors:
  • Marcia G. Méndez-Rivera;Alberto Valdes-Garcia;Jose Silva-Martinez;Edgar Sánchez-Sinencio

  • Affiliations:
  • Analog & Mixed-Signal Center, Texas A&M University, College Station, USA 77843-3128;Analog & Mixed-Signal Center, Texas A&M University, College Station, USA 77843-3128;Analog & Mixed-Signal Center, Texas A&M University, College Station, USA 77843-3128;Analog & Mixed-Signal Center, Texas A&M University, College Station, USA 77843-3128

  • Venue:
  • Journal of Electronic Testing: Theory and Applications
  • Year:
  • 2005

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Abstract

This paper presents an analog built-in testing (BIT) architecture and its implementation. It enables the frequency response and harmonic distortion characterizations of an integrated device-under-test (DUT) through a digital off-chip interface. External analog instrumentation is avoided, reducing test time and cost. The proposed on-chip testing scheme uses a digital frequency synthesizer and a simple signal generator synchronized with a switched capacitor bandpass filter. A general methodology for the use of this structure in the functional verification of a DUT is also provided. The circuit-level design and experimental results of an integrated prototype in standard CMOS 0.5 驴m technology are presented to demonstrate the feasibility of the proposed BIT technique.