Importance

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Abstract

An analog-to-digital (A/D) converter circuit arranged for receiving an analog input signal and for outputting a digital representation of said analog input signal is described. The A/D converter circuit includes:

a first converter stage configured for receiving the analog input signal and for generating a first set of conversion bits, a first completion signal and a residual analog output signal representing the difference between the analog input signal and a signal represented by said first set of conversion bits,a second converter stage comprising a clock generation circuit arranged for receiving the first completion signal and for generating a clock signal,a plurality of comparators each being configured for receiving the residual analog output signal and a common reference voltage, said plurality of comparators arranged for being activated by the clock signal and for outputting a plurality of comparator decisions,a digital processing stage configured for receiving the plurality of comparator decisions and for generating a second set of conversion bits, means for generating the digital representation of the analog input signal by combining the first and second set of conversion bits.

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First Claim