Patent ID: 7378905

Claim:
A differential driver circuit, comprising: a differential input amplifier for amplifying a differential input signal to produce a differential intermediate signal being comprised of a first intermediate signal and a second intermediate signal; a first transimpedance amplifier comprising a first inverting input, a first non-inverting input, and a first output; said first intermediate signal being applied to said first non-inverting input and said first output being connected to said first inverting input of said first transimpedance amplifier via a first feedback resistor for negative current feedback; a second transimpedance amplifier comprising a second inverting input, a second non-inverting input, and a second output; said second intermediate signal being applied to said second non-inverting input and said second output being connected to said second inverting input of said second transimpedance amplifier via a second feedback resistor for negative current feedback; a third feedback resistor connected between said first and second inverting inputs for setting a gain factor of said driver circuit; an amplified differential output signal being present at said first and second outputs; a fourth feedback resistor connected between said second output of said second transimpedance amplifier and a non-inverting input of said differential input amplifier; and a fifth feedback resistor connected between said first output of said first transimpedance amplifier and an inverting input of said differential input amplifier.