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ADS52J90: Difference with ADS52J91 and Power Consumption Inquiry

Jejomar Ildefonso
Genius 9180 points
Part Number: ADS52J90
Other Parts Discussed in Thread: ADS52J91

Hi Team,

I see that the ADS52J91 full datasheet is selectively disclosed. Can help us give our customer a brief comparison or difference between ADS52J90 and ADS52J91? Need this information for device selection purposes.
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Also, Figure 36 of the ADS52J90 datasheet shows the device power consumption across different clock frequencies for 10-bit mode. Would it be safe to assume similar power consumption characteristics in 14-bit mode?

Thanks in advance!


Kind Regards

Jejomar

  • 0
    TI__Expert 4780 points

    Hi Jejomar, 

    I have received your request. Our team is a bit stretched right now due to many customer requests. I will respond to you by Friday, 9th Dec. 

    Thanks,

    Karthik

  • +1
    TI__Expert 4780 points

    Hi Jejomar, 

    The chief difference between ADS52J90 and ADS52J91 is their maximum ADC conversion rate: 
    – 100 MSPS in 10-Bit Mode for ADS52J90, 125 MSPS in 10-Bit Mode for ADS52J90 
    – 80 MSPS in 12-Bit Mode for ADS52J90,  100 MSPS in 12-Bit Mode for ADS52J90
    – 65 MSPS in 14-Bit Mode for ADS52J90, 65 MSPS in 14-Bit Mode for ADS52J90

    Yes, the power consumption for the 14-bit mode will be in the same ball park. 14-bit mode can be up to 3mW/channel higher than that of the 10-bit mode. 

    Thanks,

    Karthik