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ADS2807: Spice model and Isolation schemes

Part Number: ADS2807

Hello,

I wanted to stimulate an anti aliasing filter before ADS2807,
Can I get a spice model for this ADC or is it fine if I stimulate the input to ADC as a 1.25M resistor in parallel with 3pF capacitor?

Can the transformer circuit at the input of ADS2807 Eval board used for isolating RF ground of the signal and Analog ground of my board?
Do you have any application note or circuit describing Isolation and anti aliasing for ADS2807. 

Thanks and regards,
George.

  

  • Hi George,

    We are looking at your question and will get back to you soon.

    Regards,

    Neeraj

  • George,

    We do not have spice models for this part. Use 1.25M and 3pF like you mention. The transformer cannot isolate RF and analog GND. This board only has one ground plane. The only information available for this part is what is on the product folder on the TI website.

    Regards,

    Jim