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Unformatted text preview: RC circuit. 3-2 Photodiode Amplifier Pinout of photodiode (BPW77) used: Our photodiode is actually a Bipolar Junction Transistor (BJT), which consists of a collector (C), a base (B) and an emitter (E) For a photo-diode amplifier setup: Therefore the Base (B) will be placed in a ground, while the emitter (E) section is placed into the op-amp circuit. For deriving the relationship between V out and I in , assuming the photodiode has a additional current source as shown: where two currents Iin is flowing from V- to the current source, another is flowing out of Vout....
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- Spring '08