Patent ID: 7679419

Claim:
A device, comprising: a first transistor of a first conductivity type comprising a first current electrode coupled to a first voltage reference, a second current electrode, and a control electrode; a second transistor of the first conductivity type comprising a first current electrode coupled to the second current electrode of the first transistor, a second current electrode, and a control electrode configured to receive a first input signal; a third transistor of a second conductivity type comprising a first current electrode coupled to the second current electrode of the second transistor, a second current electrode coupled to a second voltage reference, and a control electrode configured to receive the first input signal; a fourth transistor of the second conductivity type comprising a first current electrode coupled to the control electrode of the first transistor, the first current electrode configured to provide an output signal, a second current electrode coupled to the second voltage reference, and a control electrode configured to receive a second input signal different from the output signal; a fifth transistor of the first conductivity type comprising a first current electrode coupled to the first voltage reference, a second current electrode coupled to the first current electrode of the fourth transistor, and a control electrode coupled to the first current electrode of the third transistor; and a sixth transistor of the first conductivity type coupled between the second current electrode of the fifth transistor and the first current electrode of the fourth transistor, the sixth transistor comprising a first current electrode coupled to the second current electrode of the fifth transistor, a second current electrode coupled to the first current electrode of the fourth transistor and a control electrode configured to receive the second input signal.