IMPLEMENTATION OF HIGH RESOLUTION DAC TEST STATION: A CONTRIBUTION TO DRAFT STANDARD IEEE P1658

The paper deals with the implementation of a measurement station for the test of high resolution of Digital-to-Analog Converters (DACs). The basic idea relies on the employment of a differential amplifier that provides a signal related to the difference between the voltag e generated by the DAC under test and a reference sig nal. To solve problems associated to synchronization, the r eference signal is gained by treating the DAC output voltage through a narrow band filter. Thanks to the differential am plifier, the difference signal, which holds information about DA C non linearity, is hugely expanded and, thus, can be acq uired by means of an Analog-to-Digital converter whose resol ution is lower than that of the DAC under test.

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