Patent ID: 10432199

Abstract:
Embodiments for a level shifter are provided, including: a current mirror comprising a reference current transistor and a mirrored current transistor; a pull-down network comprising a first and a second pull-down transistor, wherein the first and second pull-down transistors are respectively connected in series with the reference and mirrored current transistors; a pull-up transistor connected to an intermediate node located between the mirrored current transistor and the second pull-down transistor; a transition control transistor connected to the gate electrode of the reference current transistor; a cut-off transistor connected between the first pull-down transistor and a common negative power supply voltage; and a first and a second inverter connected to the intermediate node, wherein a control node is located between the first and second inverters, and gate electrodes of the pull-up transistor, the transition control transistor, and the cut-off transistor are connected to the control node.