Differential transimpedance amplifier

A transimpedance amplifier for converting a current between its two input terminals,

• wherein one of the input terminals is an inverting input terminal and the other one is a non-inverting input terminal, to a voltage over its two output terminals, the transimpedance amplifier comprising a voltage amplifier, a differential DC-coupled feedback network, wherein DC-coupled implies transparent for DC, an input biasing network, and a high-speed level shifter, wherein the output terminals of the transimpedance amplifier are corresponding with output terminals of the voltage amplifier,
• and wherein the level shifter is configured for creating a tunable difference in DC voltage between the input terminals and for being transparent for alternating voltages, and wherein the input biasing network is configured for reverse biasing a photodiode or multiple photodiodes connected to at least one of the input terminals and comprises two current sources per input terminal, one configured for sourcing current to the photodiode and one configured for sinking current from the photodiode and is transparent for a feedback signal from the differential DC-coupled feedback network, the differential DC-coupled feedback network is differentially and DC-coupled with the output terminals of the voltage amplifier and outputs of the differential DC-coupled feedback network are differentially and DC-coupled with the input biasing network and outputs of the input biasing network are coupled with inputs of the level shifter and the level shifter is differentially and DC-coupled with input terminals of the voltage amplifier.