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Measuring the linearity of differential-output, current-mode digital-to-analog converters (DACs)

Posted: 03 Jun 2009 ?? ?Print Version ?Bookmark and Share

Keywords:DACs current mode? digital to analog converter? linearity?

Measuring the linearity of DACs is not a trivial task. There are many potential sources of error, including thermal effects, ground loops and instrument accuracy. Additionally, a complete linearity measurement of DACs with digital resolution in excess of 10bits can be time-consuming with bench instruments. This application note details how to perform these tests quickly with minimal errors.

Maxim Integrated Products manufactures many current-output DACs with various resolutions. The MAX5891 will be used for specific examples of measurements and specifications in this application note. However, the parameters and techniques can be applied to many other differential-output, current-mode DACs.

View the PDF document for more information.

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