Patent ID: 7127061
Filing Date: 2006-10-24
Classification: H04L

Abstract:
1. A line driver for amplifying an input current into an output current comprising a drive amplifier, a voltage-controlled output current source, a current/voltage converter, a voltage/current converter, a first node, a second node and a third node, wherein the input current can be injected into the first node, a first amplifier input on the drive amplifier is coupled to the first node and a second amplifier input on the drive amplifier essentially has a reference voltage applied to it, the current/voltage converter, which is connected between the first node and the second node, is designed such that it converts a first current, which feeds the current/voltage converter from the first node, into a voltage which is present on the second node, the voltage/current converter, which is connected to the second node, is designed such that it converts the voltage present on the second node into a second current and supplies the second current to a current sink, a first capacitor is connected between the first node and the second node, the voltage-controlled output current source can be controlled by the drive amplifier, and a current-carrying path in the voltage-controlled output current source is connected between the second node and the third node, and the output current can be output from the third node.