OPA209: +/-24V Rails

Alex Welti

Part Number: OPA209
Other Parts Discussed in Thread: OPA2604, OPA2209, LME49860

Tool/software:

I might have posted this multiple times, I walked away from my desk mid post and don't remember if I sent it yesterday...

We are extremely happy with the OPA2209, 210, 211 for pro audio applications. However, we have a project that requires +/-24V. In the past we would use OPA2604 or LME49860's but, frankly, they just aren't as good as the OPA2209's. Especially, in terms of rail to rail headroom, low noise and low distortion. As well as immunity to parasitic oscillations. Etc... Maybe there's a way to search on your website, I'll poke around, but if you know off the top of your head which op amps we should consider, that would be great.

Thanks,

Alex

4 months ago

0 Raymond Zhang1 4 months ago

TI__Guru* 77311 points

Hi Alex,

Alex Welti said:
but if you know off the top of your head which op amps we should consider, that would be great.

Here is our audio amplifier selection.

https://www.ti.com/amplifier-circuit/op-amps/audio/overview.html

OPA2209, 210, 211 are low noise precision op amplifiers. In audio, we have various grade, depending on your end application. If this is mid to high end Hi-Fi application, you can take a look the above selection. If you need any help, please let us know.

FYI, here are some reference links.

https://www.ti.com/technical-documents/techdoc/results?viewType=mostuseful&rootFamilyId=64&familyId=64&docCategoryId=1

https://www.ti.com/lit/ug/sbou205/sbou205.pdf?ts=1747234866600&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FINA1620EVM

Best,

Raymond

0 Alex Welti 4 months ago in reply to Raymond Zhang1

Prodigy 10 points

Hi Raymond, Thanks for the information. It doesn't necessarily need to be an "Audio" opamp, as long as it has good specs. It just needs to be able to handle +/-24V power supplies. Is there any way to filter by Vmax across all opamps, then sort by the important specs?

0 Raymond Zhang1 4 months ago in reply to Alex Welti

TI__Guru* 77311 points

Hi Alex,

Alex Welti said:
Is there any way to filter by Vmax across all opamps, then sort by the important specs?

Here is the entire list of Precision Op Amps with low noise specification - you can sort out the column and narrow down the op amp features, see the screen shot. This is precision op amp selection. We also have general purpose op amp selection, but the noise specification is not as low as the precision ones (but lower in cost). I think that you are interested the Precision op amps, since you mentioned OPA2209, 210, 211 series.

https://www.ti.com/amplifier-circuit/op-amps/precision/products.html#480=1%3B2&sort=7typ;asc&

If you need help, please let me know.

Best,

Raymond

Amplifiers

Amplifiers forum

OPA209: +/-24V Rails