Patent ID: 6980050

Claim:
A differential amplifier for a TMDS receiver, comprising: a first transistor and a first load element, constructed of a first current path, wherein the first load element includes a control terminal; a second transistor and a second load element, constructed of a second current path, wherein gate terminals of the first transistor and the second transistor serve as differential input terminals, and the second load element includes a control terminal; and a third and fourth transistor cross-coupled between the source terminal of the first transistor and the first load element and between the source terminal of the second transistor and the second load element respectively, wherein gate terminals of the third and fourth transistors are coupled to the drain terminals of the fourth and third transistors respectively, the control terminals of the first and second load elements are coupled to the source terminals of the fourth and third transistors respectively, the source terminals of the third and fourth transistors serve as differential output terminals, and the source terminals of the first and second load elements are directly connected to ground.