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Low Noise Amplifier question

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ravi17

New Member
I require a LNA and I don't know how to choose this part. My design has AD8354 as power amplifier in the transmit section and I need a LNA at the receive section. Which one to choose? there are so many of them.

thanks!
 

davenn

Active Member
My design has AD8354 as power amplifier in the transmit section
4dBm ( ~ 2.2mW) is hardly a significant power level

what is your application ?


and I need a LNA at the receive section. Which one to choose? there are so many of them.

it would help to know what frequency you are interested in ?

again, what is your application?
what receive LNA figures are you hoping to attain ?
 

ravi17

New Member
hi,

The frequency is actually variable, not yet fixed so to speak, but the range is 42MHz to 127MHz. As said before the application is radio.
 

davenn

Active Member
As said before the application is radio.
actually you didn't, but I assumed that ;)

you didn't answer to what noise figure you are hoping/need to achieve
this again depends on your specific application, which you have yet to state

An ERA-3 has a NF of 2.7 dB @ 100 MHz

there are lots of MMIC's like that to choose from, pick one that has spec's that suit your requirements


Dave
 
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