Method and apparatus for a high bandwidth amplifier with wide band peaking

A method for amplifying a differential input, the method comprising:

• amplifying a differential voltage input proportional to an increasing frequency of the differential input to generate a first amplified differential output;
• in parallel, amplifying the differential input proportional to the differential voltage to generate a second amplified differential output having a first flat gain response;
• and
• combining the first amplified differential output with the second amplified differential output to generate a third differential output with a flat gain response up to a low frequency pole (fpole1) and an amplified response between the low frequency pole (fpole1) and a high frequency pole (fpole2).

A high speed serial data link comprising:

• a transmitter providing a differential signal to a receiver over a channel, the channel including an amplifier comprising
• a first path comprising a differential input receiving the differential signal, the differential input coupled with a combination of a first transconductance amplifier and a high pass filter, the combination including a first output coupled with a second transconductance amplifier driving a differential output;
• and
• a second path in parallel with the first path, the second path including a third transconductance amplifier coupled with the differential input and receiving the differential signal, the third transconductance amplifier having a second output coupled with the differential output.