Part Number: AFE5809 hi I have made a custom board that use AFE5809 as ADC. I can read the sampled data through FPGA and show the wave form in CHIPSCOPE (an xilinx IP core). I found the noise is much too high, it seems like the lowest 6 bits are just noise. I have tested the LVDS capture codes using 5809's ramp patten and it is OK. there is no other pre-amp stage before the 5809 input. the noise at the input pins are about 10mVpp (more like self noise of the oscilloscope) noise shown in chipscope noise in MATLAB waveform when a 40mVpp, 1MHz sine wave is added to the input.
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