Low Supply Voltage, Large Output Swing, Source-Terminated Output Driver for High Speed AC-coupled Double-Termination Serial Links

摘要

A current mode logic circuit includes a current mode logic driver circuit and a transistor biasing improvement circuit. The transistor biasing improvement circuit includes a first current source coupled to a first output node of the current mode logic driver circuit and a second current source coupled to a second output node of the current mode logic driver circuit. The first current source and the second current source raise a common mode voltage at the first output node and the second output node.