I wanted to know why do we have output in microAmps in CN0312 Software graph and not millivolts as there is transimpedence amplifier in the circuit at ouptut of photodiode.
How to get value in millivolts in the Evaluation Software CN0312?
You have likely found a typo in the software GUI, because I would agree with you given the transimpedance amplifier present in the signal chain converting from current to voltage.
I have attached a link to the LabVIEW source files if you'd like to see how the GUI is operating and converting, but please note that the source files are used merely as a reference point. Analog Devices doesn't support custom software development that isn't contained within the executable file. ftp://ftp.analog.com/pub/cftl/CN0312/1.0.1/CN0312_Software.zip