发明授权
US07304592B2 Method of adding a dither signal in output to the last integrator of a sigma-delta converter and relative sigma-delta converter
有权
将输出中的抖动信号添加到Σ-Δ转换器和相对Σ-Δ转换器的最后一个积分器的方法
- 专利标题: Method of adding a dither signal in output to the last integrator of a sigma-delta converter and relative sigma-delta converter
- 专利标题(中): 将输出中的抖动信号添加到Σ-Δ转换器和相对Σ-Δ转换器的最后一个积分器的方法
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申请号: US11420592申请日: 2006-05-26
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公开(公告)号: US07304592B2公开(公告)日: 2007-12-04
- 发明人: Carlo Pinna , Sergio Pernici , Angelo Nagari
- 申请人: Carlo Pinna , Sergio Pernici , Angelo Nagari
- 申请人地址: IT Agrate Brianza
- 专利权人: STMicroelectronics S.r.l.
- 当前专利权人: STMicroelectronics S.r.l.
- 当前专利权人地址: IT Agrate Brianza
- 代理机构: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 代理商 Lisa K. Jorgenson
- 优先权: EP05425374 20050527
- 主分类号: H03M3/00
- IPC分类号: H03M3/00
摘要:
A single-ended or differential single-stage, or multi-stage sigma-delta analog-to-digital converter includes at least one switched-capacitor integrator comprising a switched-capacitor network receiving as input a signal to be sampled, and an amplifier coupled in cascade to the switched-capacitor network. A circuit is coupled to the amplifier for feeding an analog dither signal to a virtual ground of the amplifier.
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