Transimpedance Amplifiers (TIA): Choosing the Best Amplifier for the job (Rev. A)
This application note is intended as a guide for the designer looking to amplify the
small signal from a photodiode or avalanche diode so that it would be large enough for further
processing (e.g. data acquisition) or to trigger some other event in a system. The challenge in
doing so, as always, is to not degrade the signal such that it becomes indistinguishable from
random noise and to maintain enough signal bandwidth so that “information” is preserved. We will
present some ideas on this and develop analysis and optimization techniques, as well as list the
devices with the most desirable specifications for such applications.