TI replacement for an Analog Devices AD824 amp.

Here are some choices Randell,

Too bad the OPA4990 is not in the parametric match tool based on the Selguide database

Hey Tim, so I was looking at the OPA4990 - drilling down to the ordering page, is the POPA prefix correct, 

And then the OPA4991 is in preview and it also shows that new (or wrong) POPA prefix

And actually, I looked down a little further in the parametric match table and the OPA4990 is there, just not the unreleased OPA4991 - actually the OPA4171 looks pretty close parametrically, 

The BOM cross tool does not apparently report the parametric details, 

Hi Michael,

The POPA devices are pre-production samples. Once the device RTMs the "P" device will be removed and only the OPA will be available. I would recommend the OPA4991 or OPA4990 over the OPA417x device. The OPA4990/1 have better performance, are rail to rail in, and are lower cost.

Thank you,

Tim Claycomb