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US 2014/0368363 A1Published application
Sampling front-end for Analog to Digital Converter
AssigneeUniversity of Macau
InventorsYan ZHU, Chi-Hang CHAN, Sai-Weng SIN, Seng-Pan U, Rui Paulo da Silva MARTINS
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Abstract
A sampling front-end for analog to digital converter is presented that shares a high speed N-bit ADC at front-end and interleaves the pipelined residue amplification with shared amplifier, which achieves high speed, low power and compact area with high density capacitive DAC structure.
Claims9
A sampling front-end, comprising:
- an N-bit ADC (analog to digital), sampling an input analog signal;
- converting the sampled input analog signal into an N-bit digit and generating the residues that are shared by i residue amplification units
- i residue amplification units, retrieving the time interleaved residue signals from the N-bit ADC unit
- an amplifier, generating an amplifying signal by amplifying the residue signal received from the residue amplification units;
- wherein the residue amplification units hold the residue from the N-bit ADC to the amplifier, which are interleaved to i channels.
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Dependencies are inferred from the claim text.