OPA857: Schematic review, customer find abnormal noise floor

Chi Zhang2

Part Number: OPA857

Tool/software:

Dear expert,

My customer is using OPA857, but find a abnormal noise floor, could you help to review the schematic

Chi

0 Shreenidhi Patil 3 months ago

Can you help us by naming the waveforms and explaining what does abnormal noise floor mean with respect to the image posted above ?

0 Chi Zhang2 3 months ago in reply to Shreenidhi Patil

Hi Shreenidhi,

for the noise floor abnormal conclusion, customer test the same picture X is MHz, Y is FFT, for 5000 times.

datasheet the same spec

the naming for the out put wave, green one is trigger, yellow one is OPA857 output

Chi

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