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ADS52J90: full-scale level calculation

F Brest
Prodigy 240 points
Part Number: ADS52J90


HI,

I am trying to determine the converter's full-scale level (in dBm) of ADS52J90 knowing the maximum allowable VP-P and input terminating resistance, Rin.

Looking at the datasheet for the ADS52J90, Vp-p=2V but it is not clear to me what is the input resistance of the analogue input line that I should use for my calculation.

 

Can you please advise where to find this value?

Regards

  • 0
    TI__Expert 6040 points

    Thanks for looking at the TI ADC!

    Based on the industry standard, 2Vpp=10dBm from all standard 50ohm source equipment. our ADC input directly coupled to sample and hold circuits. 

    the termination resistor can be set externally as our datasheet shown in 8.3.12 Analog Input and Driving Circuit

    Thanks!