| 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. |
