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21. 发明授权

US07253675B2 Bootstrapping circuit capable of sampling inputs beyond supply voltage 有权
标题翻译：自举电路能够对输入电压进行采样
公开(公告)号：US07253675B2
公开(公告)日：2007-08-07
申请号：US11159005
申请日：2005-06-22
申请人： Devrim Y. Aksin , Mohammad A. Al-Shyoukh
发明人： Devrim Y. Aksin , Mohammad A. Al-Shyoukh
IPC分类号： H03K17/16
CPC分类号： H03K17/687 , G11C27/024 , H03K17/063 , H03M1/1245
摘要： The bootstrapping circuit capable of sampling inputs beyond supply voltage includes: a bootstrapped switch MN20 coupled between an input node and an output node; a first transistor MP13 having a first end coupled to a control node of the bootstrapped switch MN20; a clock bootstrapped capacitor C13 having a first end coupled to a second end of the first transistor MP13; a second transistor MN27 coupled between the first end of the first transistor MP13 and a supply node, and having a control node coupled to a first clock signal node PHI; a third transistor MN26 coupled between the second end of the first transistor MP13 and the supply node; a charge pump having a first output coupled to a control node of the third transistor MN26; a level shifter having a first output coupled to a second end of the clock bootstrapped capacitor C13; a fourth transistor MN25 coupled between the supply node and a control node of the first transistor MP13, and having a control node coupled to a second output of the charge pump; a capacitor coupled between a second output of the level shifter and a control node of the first transistor; and a fifth transistor MN28 coupled between the control node of the bootstrapped switch MN20 and a common node.
摘要翻译：能够对输入电压进行采样的自举电路包括：耦合在输入节点和输出节点之间的自举交换机MN 20; 第一晶体管MP 13，其具有耦合到自举交换器MN 20的控制节点的第一端; 时钟自举电容器C 13，其具有耦合到第一晶体管MP 13的第二端的第一端; 耦合在第一晶体管MP13的第一端和电源节点之间并具有耦合到第一时钟信号节点PHI的控制节点的第二晶体管MN 27; 耦合在第一晶体管MP13的第二端和供电节点之间的第三晶体管MN 26; 电荷泵，具有耦合到第三晶体管MN 26的控制节点的第一输出; 电平移位器具有耦合到时钟自举电容器C 13的第二端的第一输出; 耦合在所述电源节点和所述第一晶体管MP 13的控制节点之间并且具有耦合到所述电荷泵的第二输出的控制节点的第四晶体管MN 25; 耦合在所述电平移位器的第二输出端和所述第一晶体管的控制节点之间的电容器; 以及耦合在自举交换机MN 20的控制节点和公共节点之间的第五晶体管MN 28。

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