Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2005-07-05
2005-07-05
Tokar, Michael (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S172000, C341S150000
Reexamination Certificate
active
06914550
ABSTRACT:
Pipelined analog to digital conversion systems are provided having cascaded multi-bit successive approximation register subconverter stages using thermometer coding. Capacitor arrays are provided in the subconverter stages, where switching logic selectively couples the capacitors to operate in sample, conversion, and residue amplification modes for generating multi-bit subconverter digital outputs and analog subconverter residue outputs, wherein the capacitors are switched according to a thermometer code to reduce differential converter non-linearity.
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Brady III Wade James
Neerings Ronald O.
Nguyen John B
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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