发明申请
- 专利标题： ANALOG-TO-DIGITAL CONVERTER AND ANALOG-TO-DIGITAL CONVERSION METHOD
- 专利标题（中）： 模拟数字转换器和模拟数字转换方法
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申请号： US14548523申请日： 2014-11-20
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公开(公告)号： US20150138005A1公开(公告)日： 2015-05-21
- 发明人: Kei Shiraishi , Junya Matsuno , Masanori Furuta , Tetsuro Itakura
- 申请人： KABUSHIKI KAISHA TOSHIBA
- 优先权： JP2013-241053 20131121
- 主分类号： H03M1/20
- IPC分类号： H03M1/20 ; H03M3/00 ; H03M1/12
摘要：
According to an embodiment, an analog-to-digital converter includes a first AD (analog-to-digital) conversion circuit and a second AD conversion circuit. The first AD conversion circuit performs AD conversion of a first input signal to generate an upper-bit digital signal. The second AD conversion circuit performs AD conversion of a sampled signal to generate a lower-bit digital signal. The sampled signal is obtained by sampling a residual signal corresponding to a residue of the AD conversion in the first AD conversion circuit. A period during which the second AD conversion circuit performs AD conversion of the sampled signal overlaps a period during which a second input signal subsequent to the first input signal is settled.
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