Good LNA choice - RF Cafe Forums

RF Cafe Forums closed its virtual doors in late 2012 mainly due to other social media platforms dominating public commenting venues. RF Cafe Forums began sometime around August of 2003 and was quite well-attended for many years. By 2012, Facebook and Twitter were overwhelmingly dominating online personal interaction, and RF Cafe Forums activity dropped off precipitously. Regardless, there are still lots of great posts in the archive that ware worth looking at. Below are the old forum threads, including responses to the original posts. Here is the full original RF Cafe Forums on Archive.org

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Corvus

Post subject: Good LNA choice Posted: Thu Nov 27, 2008 10:20 am

Captain

Joined: Mon Jul 18, 2005 12:55 pm

Posts: 8

Hi everybody!!

I am looking for a good LNA ( low NF, high IP3...) for VHF and UHF receiver design.Anybody has experience or knows a good one?

Is possible to improve the input return loss of LNA with external component structure?

If you have to choose for a new design double conversion receiver or direct conversion receiver which one you perform?

Thanx

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markapexwireless

Post subject: Posted: Mon Dec 01, 2008 7:25 pm

Captain

Joined: Tue Jul 08, 2008 7:15 pm

Posts: 11

Location: Boulder Colorado

Hi,

I have had good luck with Avago MGA-62563. It has .9dB NF, 33dBm OIP3, 22dB gain at 500 MHz. It also has current adjustment (via resistor value) to optimize for desired performance.

Good luck!!

- Mark -

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raghavkap

Post subject: Re: Good LNA choicePosted: Thu May 07, 2009 5:57 am

Lieutenant

Joined: Thu May 07, 2009 5:47 am

Posts: 1

Try the Amplifier search on https://www.everythingrf.com

Just enter the specs and click on search. It searches components from over 100 manufacturers.

You can specify the NF and Gain.

Posted  11/12/2012