Mixed analog and digital integrated circuit having a comparator

Details Mixed analog and digital integrated circuit having a comparator Mixed analog and digital integrated circuit having a comparator

1995-08-28

1997-04-01

Nguyen, Vinh P.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

3241581, 324 731, G01R 3128

Patent

active

056170378

ABSTRACT:
Mixed analog/digital integrated circuits are disclosed. The mixed analog/digital integrated circuit has a D/A circuit and an A/D circuit which are connected in series to verify the reversibility of the D/A circuit and the A/D circuit, and an attenuator is inserted after D/A conversion and a multiplier with multiplying factor equal to the reciprocal of the attenuation factor of the attenuator is inserted at the output of the A/D converter. A comparator compares the digital data prior to the first D/A conversion with the digital data that has undergone the successive D/A and A/D conversion and level shifting from the attenuator and the multiplier.

REFERENCES:
patent: 4707654 (1987-11-01), Suzuki et al.
patent: 4922492 (1990-05-01), Fasang et al.
patent: 5097205 (1992-03-01), Toyoda
patent: 5184162 (1993-02-01), Saitoh et al.
patent: 5239536 (1993-08-01), Masuko et al.

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