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But anyway, I introduce a sinusoid into a PGA follower (Gain=1) and apartI monitories the input and output in the First column and I get the image 1, obtaining the expected.
Input=Output (Port 0_3)
(Vsin input= 500Hz 1Vpp and 1Voffset)
When I did the same in the second row I got a noisy sinusoidoutput.The output is equal to the input but the noise is much higher than the specifications told in the datasheet, so I still thinking my part is damaged.
Image 3 shows the add noise is around 800KHz and 1MHz.
What do you think about it?
Is damaged my part?
By the way, I have a RC filter in my Port 0_5 board outout.