OPA4172: Is there any selection guide of amplifier I could use for my sensor signal processing?

user5813940

Part Number: OPA4172
Other Parts Discussed in Thread: TLV9001

Is there any selection guide of amplifier I could use for my sensor signal processing?

I have no idea how to select an proper OP for my sensor, for example, I cannot configure which parameter is better for my design.

May you do me a favor to offer me some selection guide of OP?

Thank you!

over 6 years ago

0 Paul Grohe over 6 years ago

TI__Guru 54956 points

Hello,

There is the parametric search table:

www.ti.com/.../products.html

And we also have a downloadable selection tool that allows more detailed amplifier searches:

www.ti.com/.../OPAMPS-SELGUIDE

0 Kuiwei Xu over 6 years ago

Prodigy 10 points

Would you like tell me what's about your sensor and your application or design?

This is rail to rail output OP, it's great for DC to 1M signal application.

0 Michael Steffes over 6 years ago in reply to Paul Grohe

Guru 48395 points

Hey Paul, thanks for the Selguide link - I have been using some other parametric tools but I know yours is one of the best.

As I recall, your database is TI only - so it it not as useful to cross a different manufacturer? There is another one that does that hiding in the TI website here - it is not working as well as I recall on prioritizing parameters, but it does give you a start -

www.ti.com/.../cross-reference.html

0 Paul Grohe over 6 years ago in reply to Michael Steffes

TI__Guru 54956 points

Hi Michael,

Thanks for the complement ! :^) 19 years of continuous use!

Yes - I had a had a hand in the creation of the Xref tool, too. Selguides data is used for the "TI" side of the xref...the rest is "inside baseball".. ;^)

0 Bala Ravi over 6 years ago in reply to Paul Grohe

TI__Expert 6625 points

Hi User,
Please refer to the tools suggested by Paul: parametric search tables and SelGuide are good tools. Is your sensor application for low-voltage? If so, is this application for wearable devices? If that's the case I would recommend looking into low-quiescent current. If the op-amp is being used to clean out an analog signal before an ADC, I would also recommend using a rail-to-rail input and output op-amp. Finally do you have any requirements for bandwidth, slew rate and offset voltage? Please look into TLV9001 (available in multiple channels): www.ti.com/.../tlv9001.pdf.

Best Regards,
Bala Ravi

Please click "This resolved my issue" button if this post answers your question

0 kai klaas69 over 6 years ago

Guru 140200 points

Hi,

can you show us a schematic of your circuit?

Kai

0 Ron Michallick over 6 years ago in reply to kai klaas69

TI__Guru**** 156556 points

User,

If the information provided was helpful in your selection, please mark that post as solved.

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OPA4172: Is there any selection guide of amplifier I could use for my sensor signal processing?