I'm a mechanical engineer, who has the luck to design an easy transimpedance amplifier circuit to convert the current of an photodiode to a voltage between 0 and 5V (without really knowing anything about it.)

I used this reference design from Texas Instruments and did the calculations.

After some weired results with the voltage divider in place, I changed the design to the one you can see in the next picture.

(The values of the components are different in my design.)

I ended up with some "useful" measurements, which showed more or less the same signal pattern compared to a professionally built transimpedance amplifier. See picture below. Blue line is my DIY-version, orange line is the bought amplifier.

As you can see, there is a lot of noise in my design. I'm not really deep into electronics so I don't know how to improve the performance.

Can somebody give me some advice how I can reduce the noise?

FYI: I used this opamp.

EDIT: I added the pitures of my PCB + the values of the components. When I read through the comments I realized that there is more to consider than I expected. I dont need a super low noise Trans-amp, but lower noise would be great! Are there any easy fixes, which i can use without additonal curcitry?

I'm a mechanical engineer, who has the luck to design an easy transimpedance amplifier circuit to convert the current of a photodiode to a voltage between 0 and 5V (without really knowing anything about it.)

I used this reference design from Texas Instruments and did the calculations.

After some weired results with the voltage divider in place, I changed the design to the one you can see in the next picture.

(The values of the components are different in my design.)

I ended up with some "useful" measurements, which showed more or less the same signal pattern compared to a professionally built transimpedance amplifier. See picture below. Blue line is my DIY-version, orange line is the bought amplifier.

As you can see, there is a lot of noise in my design. I'm not really deep into electronics so I don't know how to improve the performance.

Can somebody give me some advice how I can reduce the noise?

FYI: I used this opamp.

EDIT: I added the pitures of my PCB + the values of the components. When I read through the comments I realized that there is more to consider than I expected. I dont need a super low noise transimpedance amplifier, but lower noise would be great. Are there any easy fixes which I can use without additonal curcitry?

I'm a mechanical engineer, who has the luck to design an easy transimpedance amplifier circuit to convert the current of an photodiode to a voltage between 0 and 5V (without really knowing anything about it.)

I used this reference design from Texas Instruments and did the calculations.

After some weired results with the voltage divider in place, I changed the design to the one you can see in the next picture.

(The values of the components are different in my design.)

I ended up with some "useful" measurements, which showed more or less the same signal pattern compared to a professionally built transimpedance amplifier. See picture below. Blue line is my DIY-version, orange line is the bought amplifier.

As you can see, there is a lot of noise in my design. I'm not really deep into electronics so I don't know how to improve the performance.

Can somebody give me some advice how I can reduce the noise?

FYI: I used this opamp.

I'm a mechanical engineer, who has the luck to design an easy transimpedance amplifier circuit to convert the current of an photodiode to a voltage between 0 and 5V (without really knowing anything about it.)

I used this reference design from Texas Instruments and did the calculations.

After some weired results with the voltage divider in place, I changed the design to the one you can see in the next picture.

(The values of the components are different in my design.)

I ended up with some "useful" measurements, which showed more or less the same signal pattern compared to a professionally built transimpedance amplifier. See picture below. Blue line is my DIY-version, orange line is the bought amplifier.

As you can see, there is a lot of noise in my design. I'm not really deep into electronics so I don't know how to improve the performance.

Can somebody give me some advice how I can reduce the noise?

FYI: I used this opamp.

EDIT: I added the pitures of my PCB + the values of the components. When I read through the comments I realized that there is more to consider than I expected. I dont need a super low noise Trans-amp, but lower noise would be great! Are there any easy fixes, which i can use without additonal curcitry?

i'm an mechanical engineer, who has the luck to design an easy tranimpedance amplifier circutry to convert the current of an photodiode to a voltage between 0 and 5V (without really knowing anything about it). I used this reference desing from Texas Instruments and did the calculations.

(https://www.ti.com/lit/an/sboa220a/sboa220a.pdf?ts=1594038188275&ref_url=https%253A%252F%252Fwww.ti.com%252Fdesign-resources%252Fdesign-tools-simulation%252Fanalog-circuits%252Famplifier-circuits.html)

After some wiered results with the voltage divider in place, i changed the design to the one you can see in the next picture.  (the values of the components are different in my design)  

I ended up with some "useful" meassurments, which showed more or less the same signal pattern comparded to one professionelly built transimpedance amplifier. See picture below. Blue line is my DIY-version, orange line is the bought amplifier.

As you can see, there ist alot of noise in my design. Im not really deep into electronics so i dont know how to improve the performance. Can anybody give me some advice, how i can reduce the noise?

Fyi: I used this OpAmp: (https://www.ti.com/lit/ds/symlink/opa380.pdf?ts=1598799996130&ref_url=https%253A%252F%252Fwww.google.com%252F)

Thanks alot!

I'm a mechanical engineer, who has the luck to design an easy transimpedance amplifier circuit to convert the current of an photodiode to a voltage between 0 and 5V (without really knowing anything about it.)

I used this reference design from Texas Instruments and did the calculations.

After some weired results with the voltage divider in place, I changed the design to the one you can see in the next picture. 

(The values of the components are different in my design.) 

I ended up with some "useful" measurements, which showed more or less the same signal pattern compared to a professionally built transimpedance amplifier. See picture below. Blue line is my DIY-version, orange line is the bought amplifier.

As you can see, there is a lot of noise in my design. I'm not really deep into electronics so I don't know how to improve the performance. 

Can somebody give me some advice how I can reduce the noise?

FYI: I used this opamp.