Efficient and accurate testing of analog-to-digital converters using oscillation-test method

  • Authors:
  • K. Arabi;B. Kaminska

  • Affiliations:
  • Department of Electrical and Computer Engineering, École Polytechnique de Montréal, P.O.Box 6079, Station Centre-ville, Montreal, Quebec, Canada H3C 3A7;OPMax Engineering, Portland, OR

  • Venue:
  • EDTC '97 Proceedings of the 1997 European conference on Design and Test
  • Year:
  • 1997

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper describes a practical test approach for analog-to-digital converters (ADCs) based on the oscillation-test strategy. The oscillation-test is applied to convert the ADC under test to an oscillator. The oscillation frequencies are able to monitor the ADC conversion rate, differential nonlinearity (DNL) and integral nonlinearity (INL) at each quantization band edge (QBE). Using this method, no analog stimulus should be supplied and therefore the need for a costly precision signal generator is eliminated. Besides, as the oscillation frequency is evaluated using pure digital circuitry, test accuracy is increased. This test approach is not limited to a special kind of ADC. Simulations and practical implementation prove the efficiency of the proposed test approach for ADCs.