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US 8,797,205 B2Granted
A/D conversion device and radio device
AssigneeKabushiki Kaisha Toshiba
InventorsMasanori Furuta, Tetsuro Itakura
Life of this patent
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Abstract
This A/D convertor includes: a first D/A conversion unit configured to sample an analog input signal, and to generate a first difference signal by performing successive comparison of the analog input signal based on a reference voltage; a precharge capacitor unit configured to hold the reference voltage; a first comparing unit configured to compare the first difference signal with a reference value to generate a first digital signal; and an amplifying unit configured to calculate by using the first difference signal and the reference voltage to generate a residual signal.
Claims10
An A/D convertor, comprising:
- a first D/A conversion unit configured to sample an analog input signal, and to generate a first difference signal by performing successive comparison of the analog input signal based on a reference voltage;
- a precharge capacitor unit configured to accumulate a charge for the reference voltage;
- a first comparing unit configured to compare the first difference signal with a reference value to generate a first digital signal;
- and
- an amplifying unit configured to generate a residual signal by a calculation using the first difference signal and the reference voltage.
2 more elements
Dependencies are inferred from the claim text.