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ADS54J64: ads54j64 in dual adc mode

Vitali Titov
Prodigy 10 points
Part Number: ADS54J64

How I must to make an Input chain to use ads54j64 in dual ADC mode? I need to use both A and B inputs and therefore to supply them with driver what can drive 25 Ohm load? Or, may be, there is any internal commutation in chip and I can use simple input A (or B)? Sorry for my English

  • 0
    TI__Guru* 91947 points

    ADS5XJ64EVM-SCH_A.pdfVitali,

    We have done this with our ADS54J64EVM by using a power splitter which was connected to both CHA and CHB and had very good results. See the EVM schematic for more info (attached). In this case the source was driving 25 Ohms. The schematic contains a high pass filter at the last stage that would be removed if using a frequency input.

    Regards,

    Jim