公开(公告)号：US20130321059A1

公开(公告)日：2013-12-05

申请号：US13484304

申请日：2012-05-31

申请人： Steven P. ALLEN ,  Mohammad Nizam U. KABIR

发明人： Steven P. ALLEN ,  Mohammad Nizam U. KABIR

IPC分类号： H03L5/00

CPC分类号： H03K19/018521

摘要： A sampling switch circuit uses correlated level shifting. The sampling switch circuit includes: a sampling switch having a first terminal, a control terminal, and an output terminal, wherein the first terminal is connected to an input voltage node; a boosting circuit connected to first and second supply voltage nodes and coupled to the control terminal of the sampling switch; and a correlated level shifting buffer circuit. The correlated level shifting buffer circuit includes: an amplifier having first and second inputs and an output, wherein the first input is connected to the input voltage node, and the output and second input are coupled to the boosting circuit; and a level shifting capacitor coupled to the second input and output of the amplifier, to the boosting circuit, and to a level shifting voltage node.

摘要翻译： 采样开关电路使用相关电平转换。 采样开关电路包括：具有第一端子，控制端子和输出端子的采样开关，其中第一端子连接到输入电压节点; 连接到第一和第二电源电压节点并耦合到采样开关的控制端的升压电路; 和相关电平移位缓冲电路。 相关电平移位缓冲电路包括：具有第一和第二输入和输出的放大器，其中第一输入连接到输入电压节点，输出和第二输入耦合到升压电路; 以及耦合到放大器的第二输入和输出，升压电路以及电平转换电压节点的电平移动电容器。