1. A wideband amplifier comprising: a first differential input and a second differential input that are driven in opposite directions to carry data;
a transconductance stage that comprises:
a first differential transistor having a gate that receives the first differential input, the gate controlling current in a channel between a first inter-stage node and a first tail node;
a first load between a first supply and the first inter-stage node, the first load having a first resistor in parallel with a channel of a first load transistor;
a second differential transistor having a gate that receives the second differential input, the gate controlling current in a channel between a second inter-stage node and the first tail node;
a second load between the first supply and the second inter-stage node, the second load having a second resistor in parallel with a channel of a second load transistor;
a second stage that comprises:
a third differential transistor having a gate that receives the first inter-stage node, the gate controlling current in a channel between a first output node and a second tail node;
a third load between the first supply and the first output node, the third load having a third resistor in parallel with a channel of a third load transistor;
a fourth differential transistor having a gate that receives the second inter-stage node, the gate controlling current in a channel between a second output node and the second tail node; and
a fourth load between the first supply and the second output node, the fourth load having a fourth resistor in parallel with a channel of a fourth load transistor;
wherein the second stage further comprises:
a first shunt resistor coupled between the first inter-stage node and the first output node;
a second shunt resistor coupled between the second inter-stage node and the second output node,
whereby the second stage is a shunt-shunt-feedback stage and whereby the first, second, third, and fourth loads each have a resistor and a transistor in parallel.
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