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US 8,947,283 B2Granted
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.
Claims8
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.
2 more elements
Dependencies are inferred from the claim text.