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AD8310 DC-Coupled Input

Question asked by mtapalla on Feb 12, 2011
Latest reply on Feb 13, 2011 by enash

Hello,

 

I had a question on Figure 38 (page 19) of the AD8310 log amp datasheet. The figure shows the AD8138 differential amplifier connected to the log amp. However, it shows that the diff amp's -OUT is connected to the log amp's INHI, and its +OUT connected to INLO. I was wondering why it's not the other way around (+OUT to INHI and -OUT to INLO)?

 

Thank you for your time!

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