Amplify Photodiode Signal

Hi,
I want to make a Ballistic Chronograph. Sensors work with light intensity, I use two photodiode for this purpose (BPV10) with MCP601 Op Amp. But I want help me to design a circuit with two op amp for each photodiode to more amplify signal.
Excuse me for bad English writing :slight_smile:

Thanks

BPV10.pdf (99.4 KB)

mcp601-2-3-4.pdf (498 KB)

Post the links to your previous chronograph threads on this forum, so we don't have to repeat the questions/answers. Leo..

Why would you need two opamps? The simple transimpedance circuit using the diode reverse-biased can have its sensitivity set by a single resistor, just make this higher in value (perhaps with a few pF across for stability):

Here's a discussion of the standard circuit https://electronics.stackexchange.com/questions/162655/how-does-single-supply-transimpedance-opamp-circuit-works

Really high-performance photodiode amps are an entire field of study in themselves, note...

MarkT: Why would you need two opamps? The simple transimpedance circuit using the diode reverse-biased can have its sensitivity set by a single resistor, just make this higher in value (perhaps with a few pF across for stability):

Here's a discussion of the standard circuit https://electronics.stackexchange.com/questions/162655/how-does-single-supply-transimpedance-opamp-circuit-works

Really high-performance photodiode amps are an entire field of study in themselves, note...

Thanks a lot