Ad650 freq to volt circuit question.

Thread Starter

Tony Elliott

Joined May 8, 2015
144
Hi All About Circuits,

I have built a AD650 frequency to voltage circuit as I want to see if I can get better results than the lm2907n f/v converter.

I have a question as I am having no voltage response on my multimeter and the bench power supply is not pulling any current which is unusual.

I have looked at my circuit and all connections are fine but I see on the schematic (Schematic is on page 11, fig13)
http://www.analog.com/media/en/technical-documentation/data-sheets/AD650.pdf
there is an ANALOG GND on pin 11. I have never seen this before on a circuit and there is DECOUPLING AND GROUNDING paragraph on page 12 which is a little above my skill set at this present time. Any solutions welcome please???
 
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