发明申请
- 专利标题: ANALOG-TO-DIGITAL CONVERSION CIRCUIT, IMAGING APPARATUS AND IMAGING SYSTEM
- 专利标题(中): 模拟数字转换电路,成像设备和成像系统
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申请号: US14869326申请日: 2015-09-29
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公开(公告)号: US20160116333A1公开(公告)日: 2016-04-28
- 发明人: Hiroaki Kameyama
- 申请人: CANON KABUSHIKI KAISHA
- 优先权: JP2014-218589 20141027
- 主分类号: G01J1/44
- IPC分类号: G01J1/44 ; H03M1/36
摘要:
An analog-to-digital conversion circuit includes: a plurality of comparators comparing an analog signal with a reference signal; a counter generating a count signal having a plurality of bits in Gray code; a plurality of first signal wirings each transmitting one of bits of the count signal from the counter to the plurality of memories each having a plurality of bit memories; and a plurality of second signal wirings, each connecting between the bit memories of the plurality of memories. Each of the second signal wirings is connected to one of the plurality of first signal wirings, and the first signal wirings and/or the second signal wirings include a signal wiring transmitting a signal of least significant bit in the count signal arranged between the plurality of other signal wirings each transmitting a signal of a bit different from the least significant bit in the count signal.
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