Patent ID: 7839171
Filing Date: 2010-11-23
Classification: H03K

Abstract:
1. 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 a second conductivity type comprising a first current electrode coupled to the second current electrode of the first transistor and configured to provide a first output signal, a second current electrode coupled to a second voltage reference, and a control electrode configured to receive a first input signal; a third transistor of the second conductivity type comprising a first current electrode coupled to the first current electrode of the second transistor, a second current electrode coupled to the second voltage reference, and a control electrode coupled to the control electrode of the first transistor; a fourth transistor of the first conductivity type comprising a first current electrode coupled to the first voltage reference, a second current electrode, and a control electrode coupled to the first current electrode of the second transistor; a fifth transistor of the second conductivity type comprising a first current electrode coupled to the second current electrode of the fourth transistor and to the control electrode of the first and third transistors and configured to provide a second output signal, a second current electrode coupled to the second voltage reference, and a control electrode configured to receive a second input signal; a sixth transistor of the second conductivity type comprising a first current electrode coupled to the first current electrode of the fifth transistor, a second current electrode coupled to the second voltage reference, and a control electrode coupled to the first current electrodes of the second transistor and to the control electrode of the fourth transistor; a seventh transistor of the first conductivity type comprising a first current electrode coupled to the first voltage reference, a second current electrode configured to provide a third output, and a control electrode coupled to the first current electrode of the second transistor; an eighth transistor of the second conductivity type comprising a first current electrode coupled to the second current electrode of the seventh transistor, a second current electrode, and a control electrode coupled to the control electrode of the seventh transistor; a ninth transistor of the first conductivity type coupled between the first transistor and the second transistor and comprising a first current electrode coupled to the second current electrode of the first transistor, a second current electrode coupled to the first current electrode of the second transistor, and a control electrode configured to receive the first input signal; a tenth transistor of the first conductivity type coupled between the fourth transistor and the fifth transistor and comprising a first current electrode coupled to the second current electrode of the fourth transistor, a second current electrode coupled to the first current electrode of the fifth transistor, and a control electrode configured to receive the second input signal; an eleventh transistor of the first conductivity type comprising a first current electrode coupled the first voltage reference, a second current electrode, and a control electrode configured to receive the first input signal; a twelfth transistor of the first conductivity type comprising a first current electrode coupled to the second current electrode of the eleventh transistor, a second current electrode, and a control electrode coupled to the first current electrode of the fifth transistor; a thirteenth transistor of the second conductivity type comprising a first current electrode coupled the second current electrode of the twelfth transistor, a second current electrode configured to provide a fourth output signal, and a control electrode configured to receive the first input signal; and a fourteenth transistor of the second conductivity type comprising a first current electrode coupled the second current electrode of the thirteenth transistor, a second current electrode coupled to the second voltage reference, and a control electrode coupled to the first current electrode of the eighth transistor.