High Speed amplifier design with high gain

Zeeshan Ahmad Ansari

Other Parts Discussed in Thread: OPA847, LMH6629

Greetings of the day...

I am a newbwi in high speed design.

I want to design an 25 gain inverting amp with 100 Mhz bandwith having a signal range of 0-20mV range.

What are the parameters needs to be taken care of and how can I design the same.

also layout point of view what are the parameters needs to be taken care of.

Is there any application note or design note for the same.

Regards,

Zeeshan

0 Clemens Ladisch over 5 years ago

Guru 317350 points

You need a gain bandwidth product of at least 2.5 GHz, and the offset voltage should be much smaller than the signal.

The search function points to the OPA847. Also see the technical articles and appnotes linked on that page.

What is the purpose of this circuit?

0 Michael Steffes over 5 years ago in reply to Clemens Ladisch

Guru 48395 points

The other part you could look at is the even lower noise LMH6629

0 Michael Steffes over 5 years ago in reply to Michael Steffes

Guru 48395 points

Yes, it's over 200Mhz using a 50ohm input R,

And the TINA file,

0 Zeeshan Ahmad Ansari over 5 years ago in reply to Michael Steffes

Thank You Very much.

0 Zeeshan Ahmad Ansari over 5 years ago in reply to Michael Steffes

Thank you very much

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