Electronics > Projects, Designs, and Technical Stuff

Is it possible to model a photodiode PIN InGasAS,in MicroCAP 12 or LTspice?

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Jay_Diddy_B:
Hi,

The sensor has a diameter of 1mm.

The area is Pi x d / 4 = 0.78 mm2.

You have a power density of between 100W and 100mW per cm2

So this is 1W to 1mW per mm2

The datasheet shows the photodiode is non-linear above 8mW:



It doesn't look like you have the right sensor. I suggest that you talk to the manufacturer.

Regards,
Jay_Diddy_B

Marco:
Or use an attenuator.

Weiiseste:
I am sorry. I  wanted to say. between 100W and 10uW/m^2. :)

Thank you.
Dragos.

StillTrying:
"between 100W and 10uW/m^2"

LOL
If that's correct you'll have to lower that range quite a bit, these transistor circuits can only keep the pulse shape over a range of about 100:1.
I don't know what the phododiode's currents are or the pulse widths from this thread.

Jay_Diddy_B:
Hi,


--- Quote from: StillTrying on June 28, 2020, 10:45:58 am ---"between 100W and 10uW/m^2"

LOL
If that's correct you'll have to lower that range quite a bit, these transistor circuits can only keep the pulse shape over a range of about 100:1.
I don't know what the phododiode's currents are or the pulse widths from this thread.


--- End quote ---

Yes that is what I was thinking:

10uW m-2

On the area of the sensor 0.78mm2

0.78E-6 m-2

10E-5 x 0.78E-6 = 7.8E-11

or 78 pA

Jay_Diddy_B

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