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ADS7924: Recommended Maximum Junction Temperature Requirement

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Replies: 2

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Part Number: ADS7924

Hi 

We could see Absolute Max Junction Temperature as 125degC.

Max operating temperature as 85degC.

What would be the Recommended Max Junction Temperature for this device?

Our board sees close to 95degC at near to this ADC. 

What would be the power dissipation of this component when all the analog lines are loaded?

Kindly give your input on these two aspects.

Regards,

Felix. 

  • Hello,

    The available thermal information for the device is available in table 6.4 of the datasheet.

    Note that these are thermal resistances, not just a temperature measurement. I am not sure where you saw a Max Junction temperature rating in the datasheet, if you could please share this.

    But the link available at the end of the table, Semiconductor and IC Package Thermal Metrics and the Engineer it Video, How to Measure Thermal Resistance will help to better understand what each of the specification are and what they entail.

    As for the power consumption, in general it is not ideal to expose devices to hotter temperatures. To learn more about power consumption f an ADC,  we have a Video on ADC power available online

    Regards

    Cynthia

  • Hello,

    The available thermal information for the device is available in table 6.4 of the datasheet.

    Note that these are thermal resistances, not just a temperature measurement. I am not sure where you saw a Max Junction temperature rating in the datasheet, if you could please share this.

    But the link available at the end of the table, Semiconductor and IC Package Thermal Metrics and the Engineer it Video, How to Measure Thermal Resistance will help to better understand what each of the specification are and what they entail.

    As for the power consumption, in general it is not ideal to expose devices to hotter temperatures. To learn more about power consumption f an ADC,  we have a Video on ADC power available online

    Regards

    Cynthia

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