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Is it possible to model a photodiode PIN InGasAS, in accotd with datasheet, in simulator SPICE MicroCAP12?

Weees

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I want to know if it is possible to model a photodiode InGasAs panchromatic PIN , in accord with datasheet, in simulator SPICE MicroCAP 12.Because the supllier where I boughit it has not a SPICE model.And if it is possible, which are those steps. Here it is data-sheet https://www.tme.eu/en/details/ig17x1000s4i/photodiodes/laser-components/ And below I will attach a electric schematic, a transimpedance amplifier with phototdiode, used like receiver of smoke.I want to monitor graphically the impulse of photodiode in function of output of transimpedance for sensibilty. There is type of photodiode,which I found it in library Micro-CAP 12, it is simpe photodiode,which does not follow in accord in datasheet.There is photodiode macro.

Thank you.
 

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BigBoss

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You cannot model this diode by yourself.You should request a valid model for that..
 

dick_freebird

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There's datasheets and there's datasheets, some contain
info that could help you fit a model (presuming some
ability) but some are only a few "top line" electrical test
parameters in a table.

You'd need either provided data for DC I-V, and some
C-V curves, or to measure your own.

You may find that one mfr of such a part gives you the
data (or even models, on their support pages) while
another of same or similar type provides only electrical
performance limits & typicals. It's worth a bit of searching
if you find a likely part with poor support, to see if the
competitors offer more design collateral.
 

Weees

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You cannot model this diode by yourself.You should request a valid model for that..
Thank you for this feedback.But with the help with this program, or LTspice.Can I model this photodiode?
 

dick_freebird

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Do you mean to simulate the electrical behavior,
using somebody else's model provided, or do you
mean to fit a SPICE model yourself?

Two very different paths in the wood.
 

Weees

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BigBoss

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Modeling is not easy task as thought.
Experts with appropriate simulation and measurement equipments can handle this.
Simulators use the model it self only..
 

Weees

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I know.It is a little hard, but can I modelling, with the help of this program?
 

BigBoss

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I know.It is a little hard, but can I modelling, with the help of this program?
Absolutely no.. You need strong knowledge,experience,appropriate simulators and measurement equipments.
 

Weees

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BigBoss

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I found this documentation, here it indicates the circuit equivalent.Is it possible to manipulate the electrical behaviour of the original photodiode at a level satisfying? :)
Thank you,
Dragos.
No, you don't know the intrinsic parameters.You may use it anyhow but the results will be erroneous.
Why don't you request exact SPICE model from the manufacturer.They will definitely help you..
They may also have Design Kit for SPICE like simulators.. it's worthy.
 

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