Patent ID: 6965251

Claim:
A circuit comprising: a first transistor, coupled between a first node and a first supply voltage, having a control electrode coupled to an input node of the circuit; a second transistor coupled between a second supply voltage and the first node; a third transistor, coupled between a second node and the first supply voltage, having a control electrode coupled to the input node of the circuit; a fourth transistor, coupled between the second supply voltage and the second node, having a control electrode coupled to the input node of the circuit; a fifth transistor, coupled between a third node and the first supply voltage, having a control electrode coupled to the second node; a sixth transistor, coupled between the second supply voltage and the third node, having a control electrode coupled to the first node, wherein the third node is coupled to a control electrode of the second transistor; and a seventh transistor, coupled between a fourth node and the first node, having a control electrode coupled to the third node.