Is there an app note or cookbook of a VCA 810 dc coupled non inverting AGC amp or compressor?
The signal is a few hundred Hz. The application is ion sense combustion monitoring.
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Is there an app note or cookbook of a VCA 810 dc coupled non inverting AGC amp or compressor?
The signal is a few hundred Hz. The application is ion sense combustion monitoring.
John,
Take a look at the applications section of the datasheet starting on page 11. There are a few application circuits in there that may be helpful to you.
Regards,
Luke
Luke:
I saw the AGC app note, but I need a non inverting version. I assume it would be along the lines as that shown for the LMH6505, figure 9:
http://www.ti.com/lit/ds/symlink/lmh6505.pdf
My prototype uses a Vactrol in a similar configuration. It works well, but is quite bulky.
John,
You can use the same circuit for the non-inverting case by switching the inputs. The only thing to be careful of is that your signal is symmetrical because the peak detection is done on the positive side.
Regards,
Luke