Patent ID: 11881827
Assignee: CREDO TECHNOLOGY GROUP LIMITED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A high bandwidth transimpedance amplifier that comprises:
a voltage buffer coupled to an output node to supply an output voltage signal;
a distributed amplifier having an input signal line that propagates an input signal, the distributed amplifier further having multiple transistors that receive the input signal at respective nodes of the input signal line and operate to drive corresponding nodes of an amplified signal line that propagates an amplified signal to the voltage buffer, the input signal line having a first set of inductors that couple said respective nodes in series, the amplified signal line having a second set of inductors that couple said corresponding nodes in series, and one of said multiple transistors being a final transistor that receives the input signal from a final node of the input signal line and drives a final node of the amplified signal line, the voltage buffer operating to buffer a voltage of the final node of the amplified signal line; and
a feedback impedance that couples the output node to a the final node of the input signal line, causing the output voltage signal to be proportional to the input signal's current.