timedate
Member level 5
Hi everyone,
I am designing a optical receiver, use an photodiode and Transimpedance amplifier works together.
The photodiode I am using is **broken link removed** and **broken link removed**.
The transimpedance amplifier is AD8015 from Analog Deivce.
But the output of the ad8015 is oscillating all the time (with and without the input optical signal).
It oscillating for both photodiode, PDB-C134F and S6967. So, I think it should not be the problem of photodiodes.
I put the oscillating wave here. The 1st and 2nd have the input optical signal, the 3rd is without input optical signal. The 4th and 5th are the schematic and layout of my PCB board.
Dose anybody have any suggestions ? Much thanks to anyone that can shed some light on this.
I am designing a optical receiver, use an photodiode and Transimpedance amplifier works together.
The photodiode I am using is **broken link removed** and **broken link removed**.
The transimpedance amplifier is AD8015 from Analog Deivce.
But the output of the ad8015 is oscillating all the time (with and without the input optical signal).
It oscillating for both photodiode, PDB-C134F and S6967. So, I think it should not be the problem of photodiodes.
I put the oscillating wave here. The 1st and 2nd have the input optical signal, the 3rd is without input optical signal. The 4th and 5th are the schematic and layout of my PCB board.
Dose anybody have any suggestions ? Much thanks to anyone that can shed some light on this.
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