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Avago’s MGA-81563 is an economical, easy-to-use GaAs
MMIC amplifer that ofers excellent power and low noise
fgure for applications from 0.1 to 6 GHz. Packaged in an
ultra-miniature SOT-363 package, it requires half the board
space of a SOT-143 package.
The output of the amplifer is matched to 50Ω (better
than 2.1:1 VSWR) across the entire bandwidth. The input is
partially matched to 50Ω (better than 2.5:1 VSWR) below
4 GHz and fully matched to 50Ω (better than 2:1 VSWR)
above. A simple series inductor can be added to the in-
put to improve the input match below 4 GHz. The ampli-
fer allows a wide dynamic range by ofering a 2.7 dB NF
coupled with a +27 dBm Output IP3
.
The circuit uses state-of-the-art PHEMT technology
with proven reliability. On-chip bias circuitry allows op-
eration from a single +3 V power supply, while resistive
feedback ensures stability (K>1) over all frequencies and
temperatures.