patan.gova
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Hello,
I am trying to design a circuit that will convert photodiode current received from the intensity of the LED to the Voltage.
I just read this https://www.edaboard.com/threads/166250/and didnt found correct answer.I am facing similar problem like the above
Before practically implementing it on board I would like to simulate it and using NI multisim for this purpose.I used Infrared LED,TEMD1000 Pindiode and OPA380 for this design as shown in the link below
https://imageshack.us/photo/my-images/547/ws03.png/
My requirement is that when the intensity of LED changes the current of Photodiode should resulting in a respective Voltage out.I am not that good in analog and I got the problem that the even when the input to the LED is at 0V it is showing photodiode output as 458uA and OPA380 output as 4.58V.The datsheet for OPA380 is given below and followed the page12 for this design.
https://www.ti.com/lit/ds/symlink/opa380.pdf
I'm not sure of how to get the required working.So,can someone help me with analog corrections of the ciruit.
Thanks in Advance.
I am trying to design a circuit that will convert photodiode current received from the intensity of the LED to the Voltage.
I just read this https://www.edaboard.com/threads/166250/and didnt found correct answer.I am facing similar problem like the above
Before practically implementing it on board I would like to simulate it and using NI multisim for this purpose.I used Infrared LED,TEMD1000 Pindiode and OPA380 for this design as shown in the link below
https://imageshack.us/photo/my-images/547/ws03.png/
My requirement is that when the intensity of LED changes the current of Photodiode should resulting in a respective Voltage out.I am not that good in analog and I got the problem that the even when the input to the LED is at 0V it is showing photodiode output as 458uA and OPA380 output as 4.58V.The datsheet for OPA380 is given below and followed the page12 for this design.
https://www.ti.com/lit/ds/symlink/opa380.pdf
I'm not sure of how to get the required working.So,can someone help me with analog corrections of the ciruit.
Thanks in Advance.
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