Mar 16, 2012 #1 A ali. Newbie level 3 Joined Feb 24, 2012 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,303 Hello Everyone, I’m looking for some help: What is the different between the log circuits using only diode with current source or using pomp with diode? Attachments log1.png 11.3 KB · Views: 95
Hello Everyone, I’m looking for some help: What is the different between the log circuits using only diode with current source or using pomp with diode?
Mar 17, 2012 #2 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 The output of the opAmp log converter is buffered, i.e. has a much lower output impedance.