This paper introduces a new tool which allows the evaluation of different test techniques in a complete impartial manner. This tool has been applied to the selection of the best test technique for their application to high-resolution ΣΔ modulators. Besides, three of these techniques have been presented.This work has been supported by the EU ESPRIT IST Project 2001-34283/TAMES_2 and the spanish CICYT Project TIC - 2001-0929/ADAVERE.Peer reviewed