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Test intégré pour Convertisseurs Analogique/Numérique
Thèses et HDR   Open Access

Test intégré pour Convertisseurs Analogique/Numérique

Serge Bernard
Doctoral, Université de Montpellier
13/04/2001

Résumé

Test Intégré Circuits Intégrés Circuits Mixtes Convertisseurs Analogique/Numérique Générateur de Rampe Générateur de Signaux Triangulaires Test Test Intégré.
The mixed-signal circuits developed for the new multimedia applications include analog blocks and digital blocks. In an industrial context, the Analog-to-Digital Converters (ADC) are tested with a functional approach (histogram, FFT) by using expensive external test equipment. An attractive solution to reduce the cost of the test consists in moving some or all the tester functions onto the chip itself. The objective of the work presented in this thesis is the design and the development of architectures for histogram-based ADC Built-In-Self-Test (BIST). The straightforward implementation of the histogram test technique requires a significant silicon area overhead. In order to reduce this area, we propose original solutions based on the time decomposition of the histogram-based test. With this approach and simplifications of calculations, we can reduce the required hardware resources (memories, calculation). Finally, to make this BIST structure complete, we design an original architecture of ramp and triangular-wave generator. These generators use a corrective scheme to generate an accurate signal which is insensitive to the process variations. Furthermore they exhibit a very low area overhead.

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