FOUR-QUADRANT BOOTSTRAPPED SWITCH CIRCUIT

摘要

A bootstrapped switch circuit includes a first switch transistor to receive an input signal and a second switch transistor to provide an output signal. The sources of the first and second switch transistors may be coupled. A voltage source may be coupled to the sources of the first and second switch transistors and at least one of the gates of the first and second switch transistors. The voltage source may generate a control voltage to activate at least one of the first and second switch transistors based on a bias current. A voltage source driver may be coupled to the voltage source to generate the bias current based on a bias voltage. The bias voltage may include a first voltage approximately corresponding to an overdrive voltage of at least one of the first and second switch transistors and a second voltage approximately corresponding to a threshold voltage.