LM7171: High gain bandwidth product OP Amp

user6218755

Part Number: LM7171
Other Parts Discussed in Thread: OPA859, OPA858, OPA855

Hello:

Can you recommend some OP Amps with high gain bandwidth product, at least 400Meg.

thank you

0 Michael Steffes over 3 years ago

Guru 47485 points

For what purpose? There are many >500Mhz GBP op amps that are decompensated, will those be acceptable?

There are also many current feedback op amps that are>500Mhz - are those acceptable?

0 user6218755 over 3 years ago in reply to Michael Steffes

They are used in EMI Active power filters. And they're better to be voltage feedback op amps.

Thank you

0 Michael Steffes over 3 years ago in reply to user6218755

Guru 47485 points

An example schematic would help a lot,

When you say active power filters, are these active filters - is that where you are getting this high GBP number?

0 Michael Steffes over 3 years ago in reply to Michael Steffes

Guru 47485 points

Incidentally, the OPA859 is one option -

0 user6218755 over 3 years ago in reply to Michael Steffes

sorry, i made a mistake before. what i need are >1200Mhz GBP voltage feedback op amps .And can you tell me the highest GBP op amps?

0 Hasan Babiker31 over 3 years ago in reply to user6218755

Hello,

Here is a list of all amplifiers under that requirement:

The ones with the highest GBP will be the OPA855 and OPA858

Best,

Hasan Babiker

0 user6218755 over 3 years ago in reply to Hasan Babiker31

Thank you!

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