Suggestions for HF transistor that gives good IP3
tnx
Any specs for power/linearity/modulation/noise figure/application?
2N5109 is an old favourite! Will give good IP3 in these frequency ranges. Anzac did offer a module AM-109 wich offers +40 dBm IP3, and excellent IP2 due to balanced circuit.
You can use most wide band transistors which application were for TV distribution, as it had a very high demand on linearity.
Why not try the BFR96...
Bottom line, I do use 2N5109 when ever I can it is a great transistor, but getting hard to find a decent prices.
/WD
A common transistor on the market for high IP3 and low noise front-ends, is 2SC5551.
http://www.datasheetcatalog.org/data..._e/2SC5551.pdf
Also this transistor is used in top-class professional HF receivers.
tnx to all. I'll start data sheet shopping now, :).
>> Any specs for power/linearity/modulation/noise figure/application?
I have 28V to work with and want to keep current below 350mA.
The devices will be used in a conventional FF design.
Added after 1 hours 31 minutes:
vfone & webdog,
The 2SC5551 went DISCO September 2008. They talk about a replacement (2SC5551A) but there is no data sheet or page for the A rev part.
Motorola use to make some nice parts
I was wondering about the BFR96 (###.microsemi.com/datasheets/BFR96REVA.pdf). Vce <20V, Ic < 100mA. Would I get a better IP3 with a larger device?
Appreciate your opinion!