Please help me.
I try to develop laser diode driver using ADN8810.
I assembled electrical scheme according datasheet page 12 fig.20
But I have oscillation about 11MHz on the Iout pin(9). If I remove FET transistor - there is no oscillation on the Iout.
I try to change FET - it doesn't help. Now I use 2sk2009F.
SPI connection looks good, if I change sending value by SPI - Iout RMS value is changing.
This is pictures Iout from oscilloscope
Please help me, because I don't know where is problem. If you need additional information, please ask.