Digital differential amplifier switching stage with current switch

A digital switching stage, comprising:

• a differential amplifier having a first and a second differential amplifier branch;
• a terminal for a first supply potential, a terminal for a second supply potential, and an output terminal;
• a first resistor being connected in said first differential amplifier branch and having a first terminal and a second terminal, said first terminal being said terminal for the first supply potential;
• a first bipolar transistor being connected in an emitter follower circuit with respect to said second terminal of said first resistor and having an emitter being connected to said output terminal;
• a second bipolar transistor having a base and having a collector-to-emitter path being connected between said output terminal and said terminal for said second supply potential;
• a second resistor being connected in said second differential amplifier branch and having a first terminal and a second terminal, said first terminal of said second resistor being connected to said output terminal, and said second terminal of said second resistor being connected to the base of said second bipolar transistor;
• a current source transistor having a collector-to-emitter path, said differential amplifier including a first and at least one second switching transistor having mutually coupled emitters being connected through the collector-to-emitter path of said current source transistor to said terminal for the second supply potential;
• a voltage divider connected between said terminals for said supply potentials for supplying the base of said first switching transistor with a reference potential, said voltage divider including:
• a first diode having an anode connected to said terminal for the first supply potential and having a cathode;
• a second diode having a cathode connected to said terminal for the second supply potential and having an anode;
• a first resistor connected between the cathode of said first diode and the base of said first switching transistor;
• and
• a second resistor connected between the base of said first switching transistor and the anode of said second diode.