Patent Number: 8,797,205

Title: A/D conversion device and radio device

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.

Inventors: Furuta; Masanori (Kanagawa-ken, JP), Itakura; Tetsuro (Tokyo, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: H03M 1/12 (20060101)

Expiration Date: 8/05/12018