WEBENCH® Tools: Wat kind of opamp is this => "FDA"

Bram van den Berg

Prodigy 20 points

Tool/software: WEBENCH® Design Tools

Hi, :-)

I need a symetrical input low pass filter and i used FilterPro Desktop for this.

But what is a FDA opamp?

Thanks for the answer!

Kind regards,

Bram

over 6 years ago

0 Alfred Chong over 6 years ago

TI__Expert 3482 points

Bram,

FDA stands for Fully Differential Amplifier. You can find the FDA information at .

To find a FDA that has bandwidth greater than 1231Hz, you can use this link.

0 Bram van den Berg over 6 years ago in reply to Alfred Chong

Prodigy 20 points

Hi Alfred,

The amplifier you show are not fore this low frequency uses.
Also in the schematic from the software the outputs are tied together, so can you command on this?

Thanks,
Bram

0 Alfred Chong over 6 years ago in reply to Bram van den Berg

TI__Expert 3482 points

Bram,

You can adjust the min GBW to 1231Hz on the page to get a list of amplifier that meet the design requirement.
The 1231Hz is extracted from your attached Picture.
I think you spotted a bug in the schematic. The output should not be tied together.

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WEBENCH® Tools: Wat kind of opamp is this => "FDA"