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Experimental investigations on a stacked analog-to-digital converter configuration for a high dynamic range HF receiver

: Ulbricht, Gerald


Institute of Electrical and Electronics Engineers -IEEE-:
9th German Microwave Conference, GeMiC 2015. Proceedings : 16-18 March 2015, Nuremberg, Germany
Piscataway, NJ: IEEE, 2015
ISBN: 978-3-9812668-6-3
German Microwave Conference (GeMiC) <9, 2015, Nuremberg>
Fraunhofer IIS ()
HF (3-30 MHz); Analog-Digital-Umsetzer

The signal-to-noise ratio (SNR) of the analog-to-digital converter (ADC) typically limits the sensitivity of wideband receivers for Software Defined Radio (SDR) or Cognitive Radio (CR) applications in the presence of a strong interfering signal. A Stacked ADC configuration - two or more parallel ADCs, each with a different drive level - promises an increased dynamic range of the analog-to-digital interface. Based on simulation and measurement results, the paper will discuss the capability of the Stacked ADC configuration with respect to the characteristic of the interfering signal.