Patent 10284394 was granted and assigned to Inphi Corporation on May, 2019 by the United States Patent and Trademark Office.
The present invention is directed to communication systems and electrical circuits. According to an embodiment, an input termination circuit includes a first attenuation resistor and a second attenuation resistor. The resistance values of these two resistors are adjusted in opposite directions to maintain a stable output impedance. There are other embodiments as well.