Patent ID: 8159304

Claim:
A circuit for amplification, comprising: a current-feedback amplifier, including: an input stage having at least an inverting input and a non-inverting input; and a feed-forward capacitor that is arranged in a feed-forward configuration with the input stage, wherein the feed-forward capacitor is coupled to the non-inverting input of the input stage, wherein the input stage includes: a first transistor that is arranged in a diode configuration, wherein the first transistor is connected between the non-inverting input of the input stage and a first node; a second transistor having at least a base, a collector, and an emitter, wherein the base of the second transistor is connected to the first node, and wherein the emitter of the second transistor is connected to the inverting input of the input stage; a third transistor that is arranged in a diode configuration, wherein the third transistor is connected between the non-inverting input of the input stage and a second node; and a fourth transistor having at least a base, a collector, and an emitter, wherein the base of the fourth transistor is connected to the second node, the emitter of the fourth transistor is connected to the inverting input of the input stage, and wherein the feed-forward capacitor is connected in parallel with the first transistor.