Patent ID: 7015756

Claim:
A differential circuit comprising: first, second, third and fourth devices that have first, second, third and fourth control terminals, respectively wherein said second and fourth devices are arranged in series with said first and third devices, respectively; a first output that communicates with said first device and said second device; a second output that communicates with said third device and said fourth device; a first input that communicates with said first control terminal; a second input that communicates with said fourth control terminal, wherein said first, second, third and fourth devices are the same type of devices; wherein said third control terminal follows said first control terminal, and said second control terminal follows said fourth control terminal; wherein when said first device pushes, said third device pulls; wherein when said first device pulls, said third device pushes; wherein when said fourth device pushes, said second device pulls; wherein when said fourth device pulls, said second device pushes; wherein said second and third devices are matched; and wherein said first and fourth devices are matched.