发明授权
US06069579A Folding type A/D converter and folding type A/D converter circuit
有权
折叠式A / D转换器和折叠式A / D转换电路
- 专利标题： Folding type A/D converter and folding type A/D converter circuit
- 专利标题（中）： 折叠式A / D转换器和折叠式A / D转换电路
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申请号： US131238申请日： 1998-08-07
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公开(公告)号： US06069579A公开(公告)日： 2000-05-30
- 发明人: Masao Ito , Takeshi Shigenobu , Toshio Kumamoto , Takahiro Miki , Hiroshi Komurasaki
- 申请人： Masao Ito , Takeshi Shigenobu , Toshio Kumamoto , Takahiro Miki , Hiroshi Komurasaki
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX10-047644 19980227
- 主分类号： H03M1/14
- IPC分类号： H03M1/14 ; H03M1/20 ; H03M1/36 ; H03M1/12
摘要：
An A/D converter simplifies its circuit configuration without deteriorating accuracy in A/D conversion. A circuit is formed of a folding and interpolation type. A gain-variable pre-amplifier group 11 amplifies each of reference voltages Vref1 to VrefN and an analog input voltage Vin, to output the result to a folding amplifier group 12, while a gain-variable pre-amplifier group 21 amplifies each of reference voltages Vrr1 to VrrJ and the analog input voltage Vin, to output the result to a comparator group 24. Each of pre-amplifiers constituting the gain-variable pre-amplifier groups 11 and 21 has an amplification factor that varies in upper and lower comparison periods according to a clock control signal .PHI.cnt.
公开/授权文献
- US5387111A Electrical connector 公开/授权日：1995-02-07