Broadband driver circuit

Broadband driver circuit for driving voice and data signals, having a current dividing circuit, which divides a current generated by a current source, in a manner dependent on a voice and data signal present at a signal input, into two base currents for driving a first driver transistor and a second driver transistor, the two driver transistors being constructed identically, and the current dividing circuit having an NPN bipolar transistor or an NMOS transistor, whose base connection or gate connection is connected to an output of the control amplifier, whose collector or drain connection is connected to the cascode transistor and whose emitter or source connection is connected to the base connection of the first driver transistor.