Filter Design Tool: No FDA Filter option?

Connor Connaughton

Hi Team,

In the past I have used the Filter Pro Design Application for filter designs using an FDA. I see that Filter Pro is not available anymore, but rather the filter design tool is in its place.

Going through the Filter Design Tool, I dont see an option for a fully differential amplifier. Is there a way to get this option? Or is there a way to get an old link to download the old filter pro?

Please let me know if you theres a way you can help.

Thanks.

Connor

over 2 years ago

0 Caro Walter over 2 years ago

TI__Genius 17487 points

Hey Connor,

Would this help? I'm not sure if this is only applicable to INAs.

It is located in the Analog Engineer's Calculator: https://www.ti.com/tool/ANALOG-ENGINEER-CALC

All the best,
Carolina

0 Connor Connaughton over 2 years ago in reply to Caro Walter

TI__Expert 4460 points

Hi Caro,

Thank you for the quick response. Unfortunately no. Filter Pro was used for filter designs similar to the filter design tool already on TI.com. Here is a snippet from Filter Pro:

I was able to choose the FDA option (Full Differential Amplifier), where as in the new filter design tool, I no longer see this option.

Thanks,

Connor

0 Caro Walter over 2 years ago in reply to Connor Connaughton

TI__Genius 17487 points

Hey Connor,

I went into the tool to try and replicate your filter design from the snippet --- with not much success. It would appear it lets you choose the Multiple Feedback option but it defaults to single-ended not differential.

My next thought was to scroll through e2e and eventually I landed on this thread. I tried clicking on the link and got a server error -- which makes me think the TI internal firewall is not letting me access it but it might be helpful for you.

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/769715/webench-tools-filterpro-filter-design-based-on-fully-differential-amplifier

All the best,
Carolina