Peaking amplifier with capacitively-coupled parallel input stages

An integrated circuit chip, comprising:

• an integrated circuit comprising a peaking amplifier circuit, wherein the peaking amplifier circuit comprises:
• an input node, an output node and a feedback node;
• a first input amplifier having an input connected to the input node and an output connected to the feedback node;
• a second input amplifier having an input connected to the input node;
• a coupling capacitor connected between an output of the second input amplifier and the feedback node;
• a forward-path gain amplifier having an input connected to the feedback node and an output connected to the output node;
• and
• a feedback circuit having an input coupled to the output node and an output connected to the feedback node.

A method for amplifying a signal by a peaking amplifier, comprising:

• receiving an input signal at an input of first and second input amplifiers;
• amplifying the input signal with the first and second input amplifiers;
• applying an output of the first input amplifier to a feedback node to which negative feedback is applied to reduce a gain of the peaking amplifier at DC and low operating frequencies;
• and
• capacitively coupling an output of the second input amplifier to the feedback node to suppress the negative feedback and increase the gain of the peaking amplifier at high operating frequencies.