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AD8603 Noise simulation

Hello,

The LTSpice noise simulation of AD8603 gives around twice the noise density @ 1 kHz. It should be 22 nV/sqrt(Hz) flat and start the 1/f then below 1 kHz. See sim below connected as follower. Thanks.

From data sheet:

Marcelo

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  • Hello  , 

    Can you provide me your circuit schematic? I have simulated this on my end and got a voltage noise density plot similar to AD8603's datasheet. 



    Datasheet plot: 


    From the simulation and the datasheet's TPC plot, we can see a voltage noise density of about 27 nV/sqrt(Hz) @ 1kHz frequency.

    Regards,
    Paul

Reply
  • Hello  , 

    Can you provide me your circuit schematic? I have simulated this on my end and got a voltage noise density plot similar to AD8603's datasheet. 



    Datasheet plot: 


    From the simulation and the datasheet's TPC plot, we can see a voltage noise density of about 27 nV/sqrt(Hz) @ 1kHz frequency.

    Regards,
    Paul

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