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Actel Fusion™ mixed-signal FPGAs include a configurable 8-,10-, or 12-bit successive approximation register (SAR) analog to digital converter (ADC). This resolution is sufficient for many applications, but for those cases where increased accuracy is needed and bandwidth is not of primary concern, digital postprocessing techniques can be used to increase the effective resolution or the effective sample rate of your measurements. This paper introduces these concepts and provides examples to help you enhance the capabilities of the Fusion ADC.
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