# PHOTODİODE

#### Sergen Erbay

Joined Dec 19, 2019
20
Hi,I want to know the output currents of the photodiodes.but this information is not given in the Datasheet.How can i learn it?
Photodiode model SD003-151-001

#### OBW0549

Joined Mar 2, 2015
3,204
The responsitivity of that photodiode is given right there in the data sheet: 0.9 amperes/watt of incident energy at a wavelength of 1310 nm and a reverse bias of 5 volts.

From that, and from the intensity of the illuminating source, you can calculate how much output current to expect.

Or, you can just measure the current with the diode illuminated.

#### dl324

Joined Mar 30, 2015
10,002
They give it as amps/watt. I don't know how to convert that to lux without knowing detector area...

#### Sergen Erbay

Joined Dec 19, 2019
20
The responsitivity of that photodiode is given right there in the data sheet: 0.9 amperes/watt of incident energy at a wavelength of 1310 nm and a reverse bias of 5 volts.

From that, and from the intensity of the illuminating source, you can calculate how much output current to expect.

Or, you can just measure the current with the diode illuminated.
I couldn't switch my current. Can you help me

#### OBW0549

Joined Mar 2, 2015
3,204
I couldn't switch my current. Can you help me
I've given you all the help I can, based on the extremely limited information you've provided. And I have no idea what you mean when you say, "I couldn't switch my current."

#### dl324

Joined Mar 30, 2015
10,002
I couldn't switch my current. Can you help me
The current is going to be in the microamp range. Are you using an amplifier?

#### Sergen Erbay

Joined Dec 19, 2019
20
[QUOTE = "dl324, yayın: 1466531, üye: 264264"]
Akım mikroamper aralığında olacaktır. Bir amplifikatör mü kullanıyorsunuz?
196.616 [/ ATTACH] [= tam ATTACH]
[/ ALINTI]
I couldn't calculate the current output.

#### Analog Ground

Joined Apr 24, 2019
305
Converting lux to watts is a little complicated. You could start here for the concepts and then move on to on-line calculators.

#### Sergen Erbay

Joined Dec 19, 2019
20
[QUOTE = "OBW0549, yayın: 1466525, üye: 262756"]
Vermek son derece sınırlı kullanım dayanarak boyut yapabileceğim tüm yardımcı verdim. Ve "Akımı değiştiremedim" dediğinde ne demek istediğini bilmiyorum.
[/ ALINTI]
Geçerli çıktıyı hesaplayamadım.My english is not very good.

#### Alec_t

Joined Sep 17, 2013
10,905
My english is not very good.
Our Turkish isn't very good .
Try using Google Translate.

#### Sergen Erbay

Joined Dec 19, 2019
20
Hello,What is the Farad equivalent of the capacitor value here?

#### Analog Ground

Joined Apr 24, 2019
305
"pF" is "picofarad" or 1E-12 Farads. So, 10pF is 0.000000000010 farads. The "116f" may be a misprint or error. It is probably suppose to be 11pF (?) which is a reasonable value for the circuit. Or, maybe 116f means 116 femtofarads (1E-15 farads)? Can you post the source for the circuit?

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