Need help with some op amps selection?

Thread Starter


Joined Oct 10, 2013
Im In need of some expert advice on selecting a couple op amps for a metal detector circuit I'm working on.
The problem is I need to reduce the noise I'm getting now so I can send a clean signal into an ADC.
I currently am using a 5534 and a TL 2072 but the noise is pretty bad.


Joined Jul 10, 2017
A little more information would make it much easier for us to help.
What is the signal; AC or DC? What is its amplitude? If AC, what frequency?
What is the nature of the noise? Is it periodic, digital or random? What is the amplitude ratio to the signal?
Your proposed circuit would help too, even a block diagram.