Method and device for the testing of a / d - transducers to accuracy and / or security of the transformation of analog signals into binary values, characterized in that only two complementary to each other, which is coupled to the analog reference measuring values, which are afflicted with a defined error band width, and serve as a check value of the assumptions the greatest possible error of this reference variables the expected accuracy of a transformed, - digital values is calculated, and from the statistical measurement results on the accuracy of the a / d - transducer permits conclusions to be made.
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