The design anatomy of a photodetector
A typical photodetector integrates a photodiode with a transimpedance amplifier (TIA). The photodiode converts light into an electrical current, which the transimpedance amplifier then converts into a voltage. So, while a photodiode alone produces a current output, a photodetector delivers a voltage output using sensing devices like LEDs.
Read the full post at EDN’s sister publication, Planet Analog.
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