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ADS1158 Thermal pads consideration?

Other Parts Discussed in Thread: ADS1158

Hi,

I'm designing a board which has the ADS1158 on it, and I need to know what kind of thermal pads I need for it. The Datasheet mentions vias on the pad under the chip, do I need any further heat sinking through the board or is that one topside pad only there for stability?Thanks!

Tony

  • Hi Anthony,

    I could not find any specific thermal information on the ADS1158. However, because its power dissipation is low, I am fairly certain that the thermal pad is there for mechanical stability only.

    Note: The thermal pad is internally connected to AVSS. Therefore, do not connect the thermal pad to ground if you use the ADS1158 with a bipolar supply (+/- 2.5V).

    Best Regards,
    Chris