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AD8021 thermal layout

Question asked by bnevins on Mar 11, 2016
Latest reply on Mar 23, 2016 by rvieja

I am working on a circuit where the AD8021 will be driving a 300 ohm load at about 20V p-p .

 

To dissipate power, I want to make some of the PCB traces very large.

 

check my reasoning:

 

+in and -in should not be made large because stray capacitance on the signal inputs is undesirable.

Likewise for the compensation pin.

 

 

These traces can safely be made large:

 

+Vs , -Vs, shutdown, logic reference.

 

Output pin must have a  long trace, but extra C here is also not desirable, but less problematic than for signal inputs and compensation pins.

 

 

What am I missing?

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