Patent ID: 7239207

Claim:
A transimpedance amplifier comprising: an input terminal to receive an input signal from a photodiode; an amplifier to provide an amplified voltage signal at an output terminal in response to a voltage representative of the input signal; a filter to provide a filtered voltage signal in response to the amplified voltage signal, the filter comprising: an off chip capacitor comprising a terminal coupled to a circuit bonding pad; and a plurality of conductors formed between the circuit bonding pad and the output terminal, the conductors being insulated from one another over at least a portion between the output terminal and the circuit bonding pad; wherein the input signal comprises a DC cunent component and an AC current component, and wherein the transimpedance amplifier further comprises a DC current removal circuit coupled to the input terminal to remove at least a portion of the DC cunent component from the input signal in response to the filtered voltage signal.