Universal cable driver buffer circuit

A universal cable driver buffer circuit that supplies a signal without sensitivity to parasitic capacitance and variation in load impedance, said universal cable driver buffer circuit comprising:

• a first amplifier having a first input forming an input of said universal cable driver buffer circuit, and a first amplifier output coupled through a second amplifier to a voltage divider, said voltage divider dividing said constant signal amplitude and having a node, said node having a node voltage equal to one half of said constant signal amplitude;
• a third amplifier having a second input coupled to said node, and a third input, said third input receiving a reference voltage equal to one half of said constant signal amplitude, said third amplifier comparing said reference voltage and said node voltage and generating a corresponding second amplifier output;
• and
• a current mirror coupled to said third amplifier for receiving said second amplifier output and driving an output of said universal cable driver buffer circuit accordingly;
• wherein said universal cable driver buffer circuit does not incorporate operational amplifiers.