Patent ID: 8026741
Filing Date: 2011-09-27
Classification: H03K

Abstract:
1. An electronic circuit comprising: a first transistor having a source terminal coupled to a first node and a drain terminal coupled to a second node, wherein the first transistor has a first nominal threshold voltage; a second transistor of the same type as the first transistor, the second transistor having a source terminal coupled to the first node and a drain terminal coupled to the second node, wherein the second transistor has a second nominal threshold voltage; a third transistor having a drain terminal coupled to the second node and a source terminal coupled to a third node, the third transistor being of a different type than the first and second transistors, wherein the third transistor has a third nominal threshold voltage, and wherein gate terminals of the first and third transistors are coupled together; and a fourth transistor having a drain terminal coupled to the second node and a source terminal coupled to the third node, the fourth transistor being of the same type as the third transistor, wherein the fourth transistor has a fourth nominal threshold voltage, and wherein gate terminals of the second and fourth transistors are coupled together; wherein each of the first, second, third, and fourth nominal threshold voltages is different from each of the other ones of the first, second, third, and fourth nominal threshold voltages.