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AD8138s Thermal Analysis

Question asked by Leif-Dams on Jun 1, 2016
Latest reply on Jun 2, 2016 by harryh

Hi,

 

The Power consumption of this OpAmp is quite high. In our analysis it gets very hot. We are using it at +/- 5V and it draws about 41mA from each supply. Can this be correct? Is there a trick that can lower the temperature. At a operating temperature of 70C it gets more than 112C and this is hotter than allowed. We are not taking into account heat flow in the pins in the analysis. Only the ChoTherm that is used under the package to the PCB.

 

Thanks

Leif

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