| 发明名称 | Analog to digital converter including a pre-charge circuit | ||
| 摘要 | An analog to digital converter comprising at least one sampling capacitor connected to a sample node, and a pre-charge circuit arranged to cause the voltage on the sample node to substantially match the input voltage prior to the analog to digital converter entering an acquire mode in which the sample node is connected to the input node by a sample switch. | ||
| 申请公布号 | US8994564(B2) | 申请公布日期 | 2015.03.31 |
| 申请号 | US201314016787 | 申请日期 | 2013.09.03 |
| 申请人 | Analog Devices Technology | 发明人 | Hurrell Christopher Peter;Hummerstone Derek;Shine Meabh |
| 分类号 | H03M1/12;G11C27/02;H03K17/687 | 主分类号 | H03M1/12 |
| 代理机构 | Kenyon & Kenyon LLP | 代理人 | Kenyon & Kenyon LLP |
| 主权项 | 1. An analog to digital converter comprising at least one sampling capacitor connectable to an input node, and a pre-charge circuit arranged to cause a voltage at a sample node of the at least one sampling capacitor to substantially match an input voltage of the input node prior to the analog to digital converter entering an acquire mode in which the at least one sampling capacitor is connected to the input node by a first sample switch, wherein the pre-charge circuit comprises an amplifier and at least one of first and second inputs of the amplifier is connected, by at least one of a capacitor level shifting circuit and an attenuation circuit, to the sample node during an input acquire phase. | ||
| 地址 | Hamilton BM | ||