AD822,Single Supply.

Better description.

I'd like to put the Vin- to signal ground, V- to signal ground and the Vref for the output reference to signal ground; and watch a signal at V+ going from 0 to 0.5V with a gain = 5

I see 0V out with 0.5Vdc in?  I sure have beaten up the data sheet, and I see no restrictions - nor recommendations to do such.

Off-Earth,

  It sounds like you want a comparator rather than an op amp.  You have no feedback with

Vin grounded.  Did you really mean AD822 dual op amp??

Harry

Hello Harry.

I do have a comparator.  I developed an Avionics system for an up and coming company, and they presented me with an "oh, bye the way" that squashed my analog return.  I could use a bit of amplification and filtering before my threshold detector.

I have an AD822AN that may be a dozed years old or more.

My analog return is referenced to ground. I'll get back on the Analog site this evening and pursue the solution.  I'm mostly digital, so I gotta smarten-up

Thank you,

Chris

Off-Earth,

  If you can post a partial schematic and block diagram it would be helpful.  I'm still not

clear on what you want to do.

Harry

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin