transimpedance amplifiers for impedance matching

[tufan]

Hi Dear Friends

My new topic argument is the using TIA to match the impedance of an optical device (psd) which has currents as its output .We have to send these outputs to its read-out circuit.The electronics in the circuit uses currents(current mode).However,if I use TIA for impedance matching I would be converted the output currents of this optical sensor into voltage.However,these voltage values can not be used in the circuit.It only accepts current.Do you have any idea to solve this problem?
best regards

TUFAN

 

[itheman]

You need a current-amplifier. Currentin and currentout. That means a low impedance input, and a high impedance output.

 

[tufan]

How can design a current to current converter?

 

[IanP]

Example of a transimpedance amplifier that is used in fibre optic receivers you can find here:
https://www.alldatasheet.net/datasheet-pdf/view/PHILIPS/SA5212A.html
There is also internal diagram of this amplifier that you ca use in your design ..