Patent ID: 8222948
Filing Date: 2012-07-17
Classification: H03K

Abstract:
1. A bootstrapped switch circuit, comprising: a pair of switch transistors having connected sources and connected gates, to receive an input signal at a drain of one of the pair of switch transistors and to pass the input signal selectively through as an output signal at a drain of the other of the pair of switch transistors based on a control signal; and a voltage-controlled voltage source to control the pair of switch transistors in response to the control signal, comprising a first transistor, having a gate connected to the connected sources of the pair of switch transistors, and second and third transistors, having gates connected to respective ones of the control signal and its logical inverse, wherein the voltage source supplies a first voltage between the connected sources and the connected gates of the pair of switch transistors to turn them on in response to a first logic state of the control signal, the voltage source supplying the first voltage in part via the gate of the first transistor connected to the connected sources of the pair of switch transistors.