Level Shifter Circuit with Improved Time Response and Control Method Thereof

摘要

A level shifter circuit with improved time response and a control method thereof are disclosed herein. The level shifter circuit includes the output stage circuit of a level shifter and a booster circuit. The output stage circuit of the level shifter includes a first pass switch configured to transfer a voltage level of the first power supply of the level shifter to an output node, and a second pass switch connected between a second power supply and the first pass switch. The booster circuit accelerates the switching operation of the level shifter by accelerating a time response during the turning on or off operation of the first pass switch using charge sharing between a first capacitor and the parasitic capacitance of the control node of the first pass switch, which occurs via a first switch.

主权项

1. A level shifter circuit, comprising:
an output stage circuit of a level shifter comprising a first pass switch configured to transfer a voltage level of a first power supply of the level shifter to an output node, and a second pass switch connected between a second power supply and the first pass switch; and a booster circuit configured to accelerate a switching operation of the level shifter by accelerating a time response during a turning on or off operation of the first pass switch based on charge sharing via a first switch between a first capacitor and a parasitic capacitance of a control node of the first pass switch.